Argos and GPS Satellite Tracking Data for Three Large-Bodied Gull Species and Hybrids (Larus spp.) - Processed Data

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Ramey, A.M. (ORCID: 0000-0002-3601-8400)
Originator: Hatch, S.A.
Originator: Ahlstrom, C.A. (ORCID: 0000-0001-5414-8076)
Originator: van Toor, M.L.
Originator: Woksepp, H.
Originator: Chandler, J.C.
Originator: Reed, J.A. (ORCID: 0000-0002-3239-6909)
Originator: Reeves, A.B. (ORCID: 0000-0002-7526-0726)
Originator: Waldenström, J.
Originator: Franklin, A.B.
Originator: Bonnedahl, J.
Originator: Gill, V.A.
Originator: Mulcahy, D.M.
Originator: Douglas, D.C. (ORCID: 0000-0003-0186-1104)
Publication_Date: 20200626
Title:
Argos and GPS Satellite Tracking Data for Three Large-Bodied Gull Species and Hybrids (Larus spp.) - Processed Data
Geospatial_Data_Presentation_Form: tabular digital data
Series_Information:
Series_Name:
Tracking Data for Three Large-Bodied Gull Species and Hybrids (Larus spp.)
Issue_Identification: ver 2.0, March 2021
Publication_Information:
Publication_Place: Anchorage, Alaska
Publisher: U.S. Geological Survey, Alaska Science Center
Other_Citation_Details:
Suggested Citation: Ramey, A.M., Hatch, S.A., Ahlstrom, C.A., van Toor, M.L., Woksepp, H., Chandler, J.C., Reed, J.A., Reeves, A.B., Waldenström, J., Franklin, A.B., Bonnedahl, J., Gill, V.A., Mulcahy, D.M., and Douglas, D.C. 2020, Tracking data for three large-bodied gull species and hybrids (Larus spp.) (ver 2.0, March 2021): U.S. Geological Survey data release, https://doi.org/10.5066/P9FZ4OJW
Online_Linkage: https://doi.org/10.5066/P9FZ4OJW
Larger_Work_Citation:
Citation_Information:
Originator: U.S. Geological Survey, Alaska Science Center
Publication_Date: 2019
Title: USGS Alaska Science Center Wildlife Tracking Data Collection
Geospatial_Data_Presentation_Form: website
Publication_Information:
Publication_Place: Anchorage, Alaska (USA)
Publisher: U.S. Geological Survey, Alaska Science Center
Other_Citation_Details:
This is a link to the publicly released wildlife tracking data collected by the U.S. Geological Survey (USGS) Alaska Science Center. Users will find links to tracking data from other wildlife species.
Online_Linkage: https://doi.org/10.5066/P9VYSWEH
Description:
Abstract:
This metadata document describes the data contained in the "processedData" folder of this data package. This data package contains all data collected by the Argos System from 6 satellite transmitters attached to Glaucous-winged gulls on Middleton Island and 42 Argos-linked GPS satellite transmitters attached to three species of large-bodied gulls (genus Larus) and hybrids thereof, captured at landfills in southcentral, western and northern Alaska. The transmitters carried GPS receivers, so GPS tracking data represent the backbone of this data release. However, because the GPS locations were communicated through the Argos System, a time series of Argos (Doppler) tracking data also exists and is included. Four Comma Separate Value (CSV) tables are included in the "processedData" folder of this data package: 1) the "GPS_filteredLocations" table contains one record for every GPS location obtained, accompanied by a binary flag that denotes an algorithm's plausibility check (based on a speed threshold of 35 m/s); 2) the "diag_filteredLocations" table contains one record for every Argos location estimate collected, accompanied by a binary flag that denotes an algorithm's plausibility check (based on distance, turning angle, and rate thresholds). Each record in both the GPS and Argos filtered-location tables also includes a 'Tracking_Status' variable that denotes whether the location was collected from a live animal, a dead animal, or shed transmitter, 3) the "decodedSensor" table contains decoded sensor data such as the transmitter's temperature, battery voltage, and motion (activity), and 4) the "deploymentAttributes" table contains one record for each transmitter deployment in a CSV formatted table. The deployment attributes file contains information such as when the transmitter was attached to the animal, when tracking of a live animal ended, and a variety of variables describing the animal and transmitter. This table is identical to the "deploymentAttributes" table in the "rawData" folder of this data package.
Purpose:
These data were collected to investigate the potential for landfill-foraging gulls to acquire and disperse antimicrobial resistant bacteria over long-distances and to better understand the timing and patterns of migratory movement of large-bodied gulls between breeding areas in coastal Alaska and wintering areas along the north Pacific coast of Asia and North America.
Supplemental_Information:
Data users are advised to review the README and metadata documents to ensure proper use of the 'Deployment_Fate' and 'Tracking_Status' variables. Misuse or disregard of these variables could result in location data from dead animals or detached transmitters being incorrectly analyzed as data representing a live animal. Also note that, outlier values are not uncommon in the sensor data due to transmission parity errors introduced during satellite communications and no checksum values were embedded in the sensor messages to help screen for parity errors.
The deployment attributes and processed tracking data in this data package are also publicly available in Movebank (www.movebank.org) under a study entitled: "gullSpecies_USGS_ASC_argosGPS".
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20160609
Ending_Date: 20180928
Currentness_Reference: observed
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent: western North America and northeastern Asia
Bounding_Coordinates:
West_Bounding_Coordinate: 148.007
East_Bounding_Coordinate: -121.539
North_Bounding_Coordinate: 71.421
South_Bounding_Coordinate: 36.963
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:ASC275
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: Biota
Theme_Keyword: Environment
Theme:
Theme_Keyword_Thesaurus: NASA GCMD Earth Science Keywords Thesaurus
Theme_Keyword: Animals/Vertebrates
Theme_Keyword: Birds
Theme_Keyword: Waders/Gulls/Auks and Allies
Theme_Keyword: Migratory rates/routes
Theme_Keyword: Species life history
Theme_Keyword: Telemetry
Theme:
Theme_Keyword_Thesaurus: USGS Biocomplexity Thesaurus
Theme_Keyword: Migratory birds
Theme_Keyword: Seasonal distribution
Theme_Keyword: Seasonal movement
Theme_Keyword: Overwintering
Theme_Keyword: Breeding sites
Theme_Keyword: Capture-recapture studies
Theme_Keyword: Tracking equipment
Theme_Keyword: Tagging devices
Theme_Keyword: Plumage
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: Wildlife
Theme_Keyword: Ornithology
Theme_Keyword: Migratory species
Theme_Keyword: Coastal ecosystems
Theme_Keyword: Marine ecosystems
Theme_Keyword: Animal tracking
Theme_Keyword: Health and disease
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Pacific Americas flyway
Theme_Keyword: East Asia flyway
Theme_Keyword: Satellite transmitter
Theme_Keyword: Platform Transmitter Terminal
Theme_Keyword: PTT
Theme_Keyword: Argos
Theme_Keyword: GPS
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Glaucous Gull
Theme_Keyword: Glaucous-winged Gull
Theme_Keyword: American Herring Gull
Place:
Place_Keyword_Thesaurus: USGS Geographic Names Information System
Place_Keyword: Alaska
Place_Keyword: Yukon Delta
Place_Keyword: Kenai Peninsula
Place_Keyword: North Slope
Place_Keyword: Bering Strait
Place_Keyword: Soldotna
Place_Keyword: Bethel
Place_Keyword: Nome
Place_Keyword: Utqiaġvik
Place_Keyword: Utqiagvik
Place:
Place_Keyword_Thesaurus: NGIA GeoNames
Place_Keyword: Russia
Place_Keyword: Chukotka
Taxonomy:
Keywords/Taxon:
Taxonomic_Keyword_Thesaurus: None
Taxonomic_Keywords: Animals
Taxonomic_Keywords: Vertebrates
Taxonomic_Keywords: Birds
Taxonomic_Keywords: Gull species
Taxonomic_System:
Classification_System/Authority:
Classification_System_Citation:
Citation_Information:
Originator: Integrated Taxonomic Information System
Publication_Date: Unknown
Title: Integrated Taxonomic Information System
Geospatial_Data_Presentation_Form: database
Series_Information:
Series_Name: ITIS
Issue_Identification: TSN 176808, 176814, 176824, 176803
Publication_Information:
Publication_Place: online
Publisher: ITIS-North America
Other_Citation_Details:
Taxonomic details for Gull Species were retrieved 12 March 2020; from the Integrated Taxonomic Information System online database https://www.itis.gov
Online_Linkage: https://www.itis.gov
Classification_System_Modifications:
Hybridization is common in the genus Larus. Skilled observers in the field made species determinations, acknowledging this possibility. Gulls that were determined to be likely hybrids are only designated by genus.
Taxonomic_Procedures:
Species were identified by skilled observers in the field based on appearance of feathers and plumage.
Taxonomic_Completeness:
Taxonomy is completed for all samples. No voucher specimens were collected.
Taxonomic_Classification:
Taxon_Rank_Name: Kingdom
Taxon_Rank_Value: Animalia
Taxonomic_Classification:
Taxon_Rank_Name: Subkingdom
Taxon_Rank_Value: Bilateria
Taxonomic_Classification:
Taxon_Rank_Name: Infrakingdom
Taxon_Rank_Value: Deuterostomia
Taxonomic_Classification:
Taxon_Rank_Name: Phylum
Taxon_Rank_Value: Chordata
Taxonomic_Classification:
Taxon_Rank_Name: Subphylum
Taxon_Rank_Value: Vertebrata
Taxonomic_Classification:
Taxon_Rank_Name: Infraphylum
Taxon_Rank_Value: Gnathostomata
Taxonomic_Classification:
Taxon_Rank_Name: Superclass
Taxon_Rank_Value: Tetrapoda
Taxonomic_Classification:
Taxon_Rank_Name: Class
Taxon_Rank_Value: Aves
Taxonomic_Classification:
Taxon_Rank_Name: Order
Taxon_Rank_Value: Charadriiformes
Taxonomic_Classification:
Taxon_Rank_Name: Family
Taxon_Rank_Value: Laridae
Taxonomic_Classification:
Taxon_Rank_Name: Genus
Taxon_Rank_Value: Larus
Applicable_Common_Name: TSN: 176803
Taxonomic_Classification:
Taxon_Rank_Name: Species
Taxon_Rank_Value: Larus hyperboreus
Applicable_Common_Name: Glaucous Gull
Applicable_Common_Name: TSN: 176808
Taxonomic_Classification:
Taxon_Rank_Name: Species
Taxon_Rank_Value: Larus glaucescens
Applicable_Common_Name: Glaucous-winged Gull
Applicable_Common_Name: TSN: 176814
Taxonomic_Classification:
Taxon_Rank_Name: Species
Taxon_Rank_Value: Larus argentatus
Applicable_Common_Name: Herring Gull
Applicable_Common_Name: TSN: 176824
Access_Constraints: None
Use_Constraints:
It is requested that the authors and the USGS Alaska Science Center be cited for any subsequent publications referenced to this dataset.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey, Alaska Science Center
Contact_Address:
Address_Type: Mailing and Physical
Address: 4210 University Drive
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99508
Contact_Voice_Telephone: (907)786-7000
Contact_Electronic_Mail_Address: ascweb@usgs.gov
Cross_Reference:
Citation_Information:
Originator: Ahlstrom, C.A.
Originator: van Toor, M.L.
Originator: Woksepp, H.
Originator: Chandler, J.C.
Originator: Reed, J.A.
Originator: Reeves, A.B.
Originator: Waldenström, J.
Originator: Franklin, A.B.
Originator: Douglas, D.C.
Originator: Bonnedahl, J.
Originator: Ramey, A.M.
Publication_Date: 2021
Title:
Evidence for continental-scale dispersal of antimicrobial resistant bacteria by landfill-foraging gulls
Geospatial_Data_Presentation_Form: journal article
Series_Information:
Series_Name: Science of The Total Environment
Issue_Identification: 764:144551
Publication_Information:
Publication_Place: online
Publisher: Elsevier B.V.
Other_Citation_Details:
Ahlstrom, C.A., van Toor, M.L., Woksepp, H., Chandler, J.C., Reed, J.A., Reeves, A.B., Waldenström, J., Franklin, A.B., Douglas, D.C., Bonnedahl, J., Ramey, A.M. 2021. Evidence for continental-scale dispersal of antimicrobial resistant bacteria by landfill-foraging gulls. Science of The Total Environment 764:144551 doi:10.1016/j.scitotenv.2020.144551
Online_Linkage: https://doi.org/10.1016/j.scitotenv.2020.144551
Cross_Reference:
Citation_Information:
Originator: Ahlstrom, C.A.
Originator: Bonnedahl, J.
Originator: Woksepp, H.
Originator: Hernandez, J.
Originator: Reed, J.A.
Originator: Tibbitts, T.L.
Originator: Olsen, B.
Originator: Douglas, D.C.
Originator: Ramey, A.M.
Publication_Date: 2019
Title:
Satellite tracking of gulls and genomic characterization of faecal bacteria reveals environmentally mediated acquisition and dispersal of antimicrobial-resistant (Escherichia coli) on the Kenai Peninsula, Alaska
Geospatial_Data_Presentation_Form: journal article
Series_Information:
Series_Name: Molecular Ecology
Issue_Identification: 28(10):2531-2545
Publication_Information:
Publication_Place: online
Publisher: Wiley
Other_Citation_Details:
Ahlstrom, C.A., Bonnedahl, J., Woksepp, H., Hernandez, J., Reed, J.A., Tibbitts, T.L., Olsen, B., Douglas, D.C., Ramey, A.M. 2019. Satellite tracking of gulls and genomic characterization of faecal bacteria reveals environmentally mediated acquisition and dispersal of antimicrobial-resistant (Escherichia coli) on the Kenai Peninsula, Alaska. Molecular Ecology 28(10):2531-2545 doi:10.1111/mec.15101
Online_Linkage: https://doi.org/10.1111/mec.15101
Analytical_Tool:
Analytical_Tool_Description:
Implausible Argos location estimates were flagged using the Douglas Argos-filter (DAF). DAF is an ad-hoc algorithm that identifies implausible Argos location estimates based on user-defined thresholds which allows the algorithm's performance to be tuned to species' movement, behaviors, and study objectives. Key thresholds define: 1) the distance within which sequential location estimates are retained by virtue of self-validating spatial redundancy, 2) a maximum rate of movement, and 3) the acuity of tight turning angles which are characteristically created by location estimates with large errors. The actual thresholds that were applied are detailed in the "Douglas-Argos Filter" Process Step of this metadata record and in the README file included with the data package.
Tool_Access_Information:
Online_Linkage: https://www.movebank.org/node/7226
Tool_Access_Instructions: https://www.movebank.org/node/38
Tool_Citation:
Citation_Information:
Originator: Douglas, D.C.
Originator: Weinzierl, R.
Originator: Davidson, S.C.
Originator: Kays, R.
Originator: Wikelski, M.
Originator: Bohrer, G.
Publication_Date: 2012
Title: Moderating Argos location errors in animal tracking data
Geospatial_Data_Presentation_Form: journal article
Series_Information:
Series_Name: Methods in Ecology and Evolution
Issue_Identification: 3(6):999-1007
Publication_Information:
Publication_Place: online
Publisher: John Wiley and Sons, Inc.
Other_Citation_Details:
Douglas, D.C., Weinzierl, R., Davidson, S.C., Kays, R., Wikelski, M., Bohrer, G. 2012. Moderating Argos location errors in animal tracking data. Methods in Ecology and Evolution 3(6):999-1007. doi:10.1111/j.2041-210X.2012.00245.x
Online_Linkage: https://doi.org/10.1111/j.2041-210X.2012.00245.x
Analytical_Tool:
Analytical_Tool_Description:
PTT-Tracker Software Package (ver 1.0.0.3.7). Manufacturer's proprietary software used to extract GPS locations and decode raw (coded) sensor data from GeoTrak satellite transmitters.
Tool_Access_Information:
Online_Linkage: https://geotrakinc.com/ptt-tracker.html
Tool_Access_Instructions:
PTT-Tracker software and documentation, are available from https://geotrakinc.com
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Accuracy of the location filtering flag ('Location_DAF_Filter') is vulnerable to omission/commission errors as described in Douglas et al 2012. Accuracy of the 'Deployment_Fate' and 'Tracking_Status' variables is sensitive to the type of data available; for example, temperature data from implanted transmitters provide a definitive measure of animal mortality, while an integrated interpretation of sensor and movement data is required to determine whether externally attached transmitters show evidence of mortality or transmitter detachment. Transmission parity errors (misrepresentations of 1's and 0's introduced during earth-to-satellite communication) occur and should be expected when analyzing sensor data. Users are advised to interpret just the dominant patterns among the sensor data values and be skeptical of any values that appear to be outliers.
PTTs were programmed to communicate GPS data to the Argos System, GPS locations were encoded into the PTT's sensor data. Each transmission carried sensor data as well as a sensor data CRC checksum that was cross validated by the PTT manufacturer's software that extracted the GPS locations from the raw Argos data.
Logical_Consistency_Report:
All values are consistent with animal tracking data obtained by the Argos System. Files included in this data package may contain data obtained post-mortality or post-detachment. For analyses of live free-ranging animals, care must be exercised to use only those data records collected on or before the deployment end time stamp (provided in the "deploymentAttributes" table included with the data package). Data users are additionally advised that outlier values are not uncommon in decoded sensor data due to transmission parity errors introduced during satellite communications. Blank cells indicate attributes that were not collected or not determined.
Completeness_Report:
These data comprise the complete set of transmissions collected by the Argos satellite system from satellite transmitters described in the "deploymentAttributes" table. Temporal gaps in the tracking data time series are intrinsic to the Argos System due to the intermittent coverage of orbiting satellites. Additional temporal gaps are often intentionally introduced by transmitting intermittently to conserve power (i.e., duty cycles). Unintentional data gaps can be introduced by many factors such as insufficient power, antenna damage, or animal behavior and habitat. The filtering of implausible location estimates also contributes to temporal gaps.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
GPS locations were accompanied by a categorical error range provided by the PTT manufacturer based on HDOP during acquisition. Among the 37,336 GPS locations in version 1.0 data release, 90.51% were assigned to the <26 m error category, and 99.95% of the GPS locations were assigned to categories with <100 m error.
Argos location estimates determined by the Argos System have a 1-sigma (68% of locations) accuracy range of 250-1500 m (see Argos Manuals - referenced this data package; Douglas et al 2012 and references therein).
Lineage:
Methodology:
Methodology_Type: Lab
Methodology_Description:
Transmissions from satellite transmitters were received by the Argos satellite system and relayed to ground based processing centers. Location estimates were derived by Argos based on Doppler principles. Final data were disseminated to the U.S. Geological Survey as text files containing location and raw (coded) sensor data.
Methodology:
Methodology_Type: Lab
Methodology_Description:
PTTs were programmed to acquire GPS locations every three hours during local daytime hours (5:00am–10:00pm), and one GPS location during the night (0:00am–4:00am; seven total GPS locations per day) from date of deployment through 31 October. Beginning on 1 November, PTTs were programmed to acquire two GPS locations during local daylight hours (9:00am–3:00pm) and one GPS location during night (11:00pm–3:00am). PTTs were programmed to communicate GPS data to the Argos System every two days during a five-hour transmission period. GPS locations were encoded into the PTT's sensor data. Each transmission carried sensor data as well as a sensor data CRC checksum that was cross validated by the PTT manufacturer's software that extracted the GPS locations from the raw Argos data.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Ramey, A.M.
Originator: Hatch, S.A.
Originator: Ahlstrom, C.A.
Originator: van Toor, M.L.
Originator: Woksepp, H.
Originator: Chandler, J.C.
Originator: Reed, J.A.
Originator: Reeves, A.B.
Originator: Waldenström, J.
Originator: Franklin, A.B.
Originator: Bonnedahl, J.
Originator: Gill, V.A.
Originator: Mulcahy, D.M.
Originator: Douglas, D.C.
Publication_Date: 2020
Title:
Argos and GPS Satellite Tracking Data for Three Large-Bodied Gull Species and Hybrids (Larus spp.) - Raw Data
Geospatial_Data_Presentation_Form: tabular digital data; ASCII text file
Series_Information:
Series_Name: Tracking Data for Gull Species (Larus spp)
Issue_Identification: ver 2.0, February 2021
Publication_Information:
Publication_Place: Anchorage, Alaska
Publisher: U.S. Geological Survey, Alaska Science Center
Other_Citation_Details:
Ramey, A.M., Hatch, S.A., Ahlstrom, C.A., van Toor, M.L., Woksepp, H., Chandler, J.C., Reed, J.A., Reeves, A.B., Waldenström, J., Franklin, A.B., Bonnedahl, J., Gill, V.A., Mulcahy, D.M., and Douglas, D.C. 2020, Tracking data for three large-bodied gull species and hybrids (Larus spp.) (ver 2.0, February 2021): U.S. Geological Survey data release, https://doi.org/10.5066/P9FZ4OJW
Online_Linkage: https://doi.org/10.5066/P9FZ4OJW
Type_of_Source_Media: document
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2021
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Ramey et al 2020
Source_Contribution:
Raw satellite telemetry data as received from Argos. Available in the rawData folder included with this data package.
Source_Information:
Source_Citation:
Citation_Information:
Originator: CLS America
Publication_Date: 1988
Title: Argos User’s Manual
Geospatial_Data_Presentation_Form: document
Publication_Information:
Publication_Place: online
Publisher: CLS America
Other_Citation_Details:
CLS America. 1988. Argos user’s manual. *note: as a courtesy to users (in agreement with CLS America), this manual is included in this data package and can be accessed from: https://doi.org/10.5066/P9VYSWEH
Online_Linkage: https://doi.org/10.5066/P9VYSWEH
Type_of_Source_Media: document
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1988
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Argos Manual 1988
Source_Contribution: User manual and definitions of Argos Satellite System.
Source_Information:
Source_Citation:
Citation_Information:
Originator: CLS America
Publication_Date: 2016
Title: Argos User’s Manual
Geospatial_Data_Presentation_Form: document
Publication_Information:
Publication_Place: online
Publisher: CLS America
Other_Citation_Details:
CLS America. 2016. Argos user’s manual. *note: as a courtesy to users (in agreement with CLS America), this manual is included in this data package and can be accessed from: https://doi.org/10.5066/P9VYSWEH
Online_Linkage: https://doi.org/10.5066/P9VYSWEH
Type_of_Source_Media: document
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2016
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Argos Manual 2016
Source_Contribution: User manual and definitions of Argos Satellite System.
Source_Information:
Source_Citation:
Citation_Information:
Originator: GeoTrak, Inc.
Publication_Date: Unknown
Title: GeoTrak PTT 22g Solar GPS Datasheet
Geospatial_Data_Presentation_Form: document
Publication_Information:
Publication_Place: Apex, North Carolina, USA
Publisher: GeoTrak, Inc.
Other_Citation_Details:
GeoTrak PTT 22g Solar GPS Datasheet, online version, accessed April 2020.
Online_Linkage:
https://geotrakinc.com/products/data_sheets/GeoTrak-PTT-DataSheet-22gSolarGPS.pdf
Type_of_Source_Media: document
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: unknown
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: GeoTrak PTT 22g Solar GPS Datasheet
Source_Contribution:
Model specifications of the GeoTrak 22g solar Argos-linked PTT (model #: GT-22GS-GPS). With links to additional information about Telonics satellite transmitters (PTT) and data decoding.
Source_Information:
Source_Citation:
Citation_Information:
Originator: GeoTrak, Inc.
Publication_Date: Unknown
Title: PTT-Tracker: GeoTrak Argos PTT Decoding Software
Geospatial_Data_Presentation_Form: application/service
Publication_Information:
Publication_Place: Apex, North Carolina, USA
Publisher: GeoTrak, Inc.
Other_Citation_Details: GeoTrak, Inc: PTT-Tracker Software. April 2020.
Online_Linkage: https://geotrakinc.com/ptt-tracker.html
Type_of_Source_Media: document
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: unknown
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: GeoTrak Argos PTT Decoding Software
Source_Contribution:
Manufacturer's custom software for data decoding to extract GPS locations and other sensor data from the raw Argos DS data.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Microwave Telemetry, Inc
Publication_Date: unknown
Title: Microwave Telemetry: Battery Powered PTT-100 Field Manual
Geospatial_Data_Presentation_Form: document
Publication_Information:
Publication_Place: Columbia, Maryland, USA
Publisher: Microwave Telemetry, Inc.
Other_Citation_Details:
Microwave Telemetry: Battery Powered PTT-100 Field Manual. *note: as a courtesy to users (in agreement with Microwave Telemetry, Inc.), this manual is included in this data package and can be accessed from: https://doi.org/10.5066/P9VYSWEH
Online_Linkage: https://doi.org/10.5066/P9VYSWEH
Type_of_Source_Media: document
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: unknown
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: MTI Battery PTT-100 Manual
Source_Contribution:
User manual and definitions for Microwave Telemetry Li battery PTT-100 satellite transmitters.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Douglas, D.C.
Originator: Weinzierl, R.
Originator: Davidson, S.C.
Originator: Kays, R.
Originator: Wikelski, M.
Originator: Bohrer, G.
Publication_Date: 2012
Title: Moderating Argos location errors in animal tracking data
Geospatial_Data_Presentation_Form: journal article
Series_Information:
Series_Name: Methods in Ecology and Evolution
Issue_Identification: 3(6):999-1007
Publication_Information:
Publication_Place: online
Publisher: John Wiley and Sons, Inc.
Other_Citation_Details:
Douglas, D.C., Weinzierl, R., Davidson, S.C., Kays, R., Wikelski, M., Bohrer, G. 2012. Moderating Argos location errors in animal tracking data. Methods in Ecology and Evolution 3(6):999-1007 doi:10.1111/j.2041-210X.2012.00245.x
Online_Linkage: https://doi.org/10.1111/j.2041-210X.2012.00245.x
Type_of_Source_Media: journal article
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2012
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Douglas et al 2012
Source_Contribution:
Describes the use of the "Douglas Argos Filter" (DAF) for flagging implausible Argos locations.
Process_Step:
Process_Description:
Data Collection. Argos raw data in both "DS" and "DIAG" legacy formats were extracted from monthly datasets provided by Service Argos (a.k.a. CLS America or Woods Hole Group) on CD-ROM. Beginning in July 2009, both DS and DIAG data were obtained from Service Argos on CD-ROM in tabular format as Comma Separated Value (CSV) files. The tabular files contain all information reported in the Argos legacy file formats. The tabular DIAG files also include variables describing the Argos error ellipse (beginning in July 2009). Tabular DIAG data files before July 2009 (if applicable) were reformatted directly from the legacy DIAG files, and hence do not contain the error ellipse variables.
Process_Date: Unknown
Process_Step:
Process_Description:
Data Flattening. The extracted GPS tabular file and the raw Argos tabular files have had additional attributes appended by the authors to each record (including 'Animal_ID', 'Animal_Species' and 'Tracking_Status').
Process_Date: Unknown
Process_Step:
Process_Description:
Determination of Deployment Fate and Tracking Status. Location and sensor data were examined for each record to assign the value of the 'Deployment_Fate' and 'Tracking_Status' variables. Details are described in the attribute definitions, below.
Process_Date: Unknown
Process_Step:
Process_Description:
Douglas Argos-Filter. Implausible location estimates were flagged using the Douglas Argos-filter (DAF) as implemented in Movebank. DAF is an ad hoc algorithm that identifies implausible Argos location estimates based on user-defined thresholds which allows the algorithm's performance to be tuned to species' movement, behaviors, and study objectives. Key thresholds define: 1) the distance within which sequential location estimates are retained by virtue of self-validating spatial redundancy, 2) a maximum rate of movement, and 3) the acuity of tight turning angles which are characteristically created by location estimates with large errors.
Definitions of the DAF parameters can be found in the filtering help pages at Movebank.com and Douglas et al 2012. The user-defined DAF parameters applied to these data were: Filter Method = Best Hybrid; keep_lc=1; maxredun=5; offset by one second=True; keeplast=enabled; skiploc=disabled; minrate=130; r_only=disabled; ratecoef=25; xmigrate=2; xoverrun=1.5; xdirect=20; xangle=150; xpercent=20; testp_0a=2; testp_bz=3; Best of Day filter=disabled; pickday=disabled
GPS Speed-Filter. Implausible GPS location estimates were flagged using the GPS Speed-Filter as implemented in Movebank. The user-defined GPS Speed-Filter parameters applied to these data were: Filter by speed (experimental)=True; Max plausible speed (m/s)=35; Max location error (m)=100; Used algorithm=Valid anchor
Each animal's track was visually examined to assess the algorithm-derived filtering decisions, and manually changed if warranted.
Process_Date: Unknown
Process_Step:
Process_Description:
Raw sensor data are encoded for transmission. The specifics of encoding vary with transmitter manufacturer and model. We decoded raw (coded) sensor values, received from Service Argos, following procedures prescribed by transmitter manufactures.
GPS locations were extracted from the sensor data using the PTT manufacturer's (GeoTrak, Inc., Apex, NC, USA) software (PTT Tracker, version v. 1.0.0.3.7). Sensor data about the PTT's temperature, battery voltage and activity (motion) were also decoded and disseminated in a CSV format table.
Process_Date: Unknown
Spatial_Data_Organization_Information:
Indirect_Spatial_Reference:
Deployment location site names are derived from geographic names in the USGS Geographic Names Information System (GNIS) or the NGIA GeoNames System. They represent discrete capture areas.
Direct_Spatial_Reference_Method: Point
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.0001
Longitude_Resolution: 0.0001
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: World Geodetic System of 1984
Ellipsoid_Name: World Geodetic System of 1984
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio: 298.257223563
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: gullSpecies_USGS_ASC_argosGPS_deploymentAttributes
Entity_Type_Definition:
Table containing details about each satellite transmitter (PTT - Platform Transmitter Terminal) and its deployment. PTT data include manufacturer, model, and PTT ID. Animal data include: animal ID, deployment dates, and attributes of the animal if recorded (e.g., sex, age, weight, etc). Presented in a Comma Separated Value (CSV) formatted table. A copy of the "deploymentAttributes" table is also included in the "rawData" folder with this data package.
Entity_Type_Definition_Source: Author defined
Attribute:
Attribute_Label: Data_Release_DOI
Attribute_Definition:
Unique 'Digital Object Identifier' (DOI) that provides a permanent link to this data package and its metadata.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 10.5066/P9FZ4OJW
Enumerated_Domain_Value_Definition: The DOI that links uniquely to this data package.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Data_Release_Version
Attribute_Definition:
The data package version that was current at the time each record was released. The structure of this data package can accommodate future versions that add additional tracking data for existing or newly tracked individuals of the same species. See version history file included with this data package for additional details.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: v01
Enumerated_Domain_Value_Definition: Version 1.0
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: v02
Enumerated_Domain_Value_Definition: Version 2.0
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Animal_ID
Attribute_Definition:
Unique identifier for each individual tracked with a satellite transmitter (PTT).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Unrepresentable_Domain:
Unique identifier for each individual tracked with a satellite transmitter (PTT). A concatenation of a four letter species code, capture year, and PTT_ID.
Attribute:
Attribute_Label: Animal_Species
Attribute_Definition:
Scientific name of the species of animal tracked with a satellite transmitter (PTT).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Larus hyperboreus
Enumerated_Domain_Value_Definition: Scientific name for Glaucous gull
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Larus glaucescens
Enumerated_Domain_Value_Definition: Scientific name for Glaucous-winged gull
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Larus argentatus
Enumerated_Domain_Value_Definition: Scientific name for Herring gull
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Larus
Enumerated_Domain_Value_Definition:
Genus name of suspected hybrid: Herring gull x Glaucous-winged gull
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: PTT_ID
Attribute_Definition:
PTT (Platform Transmitter Terminal) ID number from Argos to uniquely identify a satellite transmitter during deployment.
Attribute_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Unrepresentable_Domain: Unique numeric identifier of the satellite transmitter.
Attribute:
Attribute_Label: Deployment_Start_Timestamp_UTC
Attribute_Definition:
The timestamp (date and time) when the satellite transmitter (PTT) deployment started.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2000/17/07 23:00:00
Range_Domain_Maximum: 2018/09/28 21:30:00
Attribute_Units_of_Measure: YYYY/MM/DD HH:mm:ss (UTC)
Attribute:
Attribute_Label: Deployment_End_Timestamp_UTC
Attribute_Definition:
The timestamp (date and time) when the satellite transmitter (PTT) deployment ended.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2001/01/12 01:01:17
Range_Domain_Maximum: 2019/11/13 09:00:00
Attribute_Units_of_Measure: YYYY/MM/DD HH:mm:ss (UTC)
Attribute:
Attribute_Label: Deployment_Fate
Attribute_Definition:
Deduced final status of the animal and satellite transmitter (PTT) at the time tracking of the live free-ranging animal ended (i.e., animal died, transmitter failed/detached, or tracking of a live animal was otherwise terminated). Determined by assessment of sensor and movement data. For example, activity sensor values that remain constant, temperature sensor values that emulate ambient conditions, and/or lack of expected movement.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: alive
Enumerated_Domain_Value_Definition:
Coded if there was no evidence or knowledge that the animal died or the satellite transmitter was shed. The 'Deployment_End_Timestamp_UTC' was set to the date/time of the last obtained transmission from the PTT or shortly thereafter.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: shed
Enumerated_Domain_Value_Definition:
Coded only if the animal was later re-observed alive without an attached satellite transmitter. The 'Deployment_End_Timestamp_UTC' was set to the date/time of the most recently obtained transmitter data indicative of attachment to the live free-ranging animal. Raw Argos data are included (if available) for up to 6 months beyond that date to preserve any information after the shed event (i.e., 'Deployment_End_Timestamp_UTC').
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: dead
Enumerated_Domain_Value_Definition:
Coded only if: 1) a carcass was observed or reported (e.g., harvested), 2) an implanted satellite transmitter showed an implausible temperature for a warm-blooded animal, or 3) an externally attached satellite transmitter with an attachment method that was very unlikely to fail/shed showed stationary movement data. The 'Deployment_End_Timestamp_UTC' was set to the date/time of the most recently obtained transmitter data indicative of attachment to the live free-ranging animal. Raw Argos data are included (if available) for up to 6 months beyond that date to preserve any information after the dead event (i.e., 'Deployment_End_Timestamp_UTC').
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: shed/dead
Enumerated_Domain_Value_Definition:
Coded if there was evidence that the animal died or the satellite transmitter was shed, but distinction was ambiguous. The 'Deployment_End_Timestamp_UTC' was set to the date/time of the most recently obtained transmitter data indicative of attachment to the live free-ranging animal. Raw Argos data are included (if available) for up to 6 months beyond that date to preserve any information after the shed/dead event (i.e., 'Deployment_End_Timestamp_UTC'). It was believed that gulls would be unable to shed their harness, therefore, we reclassified shed/dead=dead.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: undetermined
Enumerated_Domain_Value_Definition:
Coded if there was no assessment of mortality or satellite transmitter detachment. Data users will have to make their own assessments.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Deployment_End_Type
Attribute_Definition:
A deduced reason for the satellite transmitter (PTT) deployment termination.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: acute temperature drop
Enumerated_Domain_Value_Definition:
For exterior satellite transmitter attachments; a distinct drop in the transmitter's temperature sensor data suggesting the animal's body temperature is no longer contributing to elevating temperature above ambient conditions (unreliable in warm climates). For externally attached transmitters, this classification implies either animal mortality or detachment in a relatively cool or cold environment where a distinct temperature drop can be realized between the warmer than ambient temperatures that typically recorded from live animals because their body heat is partially conducted into the transmitter.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: temperature drops
Enumerated_Domain_Value_Definition:
For implanted satellite transmitters; a distinct drop in the transmitter's temperature sensor data documenting mortality of warm-blooded animals carrying a transmitter that was implanted in its body cavity. This classification implies animal mortality with high certainty.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: voltage drop
Enumerated_Domain_Value_Definition:
A drop in voltage sensor data indicative of forthcoming battery exhaustion. This classification implies normal satellite transmitter failure while the animal remained alive.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: activity flatlines
Enumerated_Domain_Value_Definition:
Activity sensor value remained near constant for an extended period of time. This classification implies animal mortality or satellite transmitter detachment.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: becomes stationary
Enumerated_Domain_Value_Definition:
PTT locations cease to show movements beyond that which might be expected due to location error.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: data acquisitions stop
Enumerated_Domain_Value_Definition:
Data collection stopped without evidence of battery failure, mortality, or satellite transmitter detachment. Owing to the absence of any evidence to the contrary, this classification implies that the animal was alive at the time data collections stopped.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: known mortality
Enumerated_Domain_Value_Definition: A carcass was observed or reported (e.g., harvested).
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Deployment_Start_Latitude
Attribute_Definition:
The latitude of the deployment site where the animal was released.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 55.21
Range_Domain_Maximum: 71.24
Attribute_Units_of_Measure: Decimal degrees (WGS84)
Attribute:
Attribute_Label: Deployment_Start_Longitude
Attribute_Definition:
The longitude of the deployment site where the animal was released.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -165.28
Range_Domain_Maximum: -146.33
Attribute_Units_of_Measure: Decimal degrees (WGS84)
Attribute:
Attribute_Label: Deployment_Start_Locale
Attribute_Definition:
The name of the deployment site where the animal fitted with the satellite transmitter (PTT) was released, for example a field station or colony.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Bethel
Enumerated_Domain_Value_Definition: Animal captured and tagged at the Bethel, Alaska, landfill.
Enumerated_Domain_Value_Definition_Source: USGS Geographic Names Information System (GNIS)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Cold Bay
Enumerated_Domain_Value_Definition: Animal captured and tagged at Cold Bay, Alaska.
Enumerated_Domain_Value_Definition_Source: USGS Geographic Names Information System (GNIS)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Nome
Enumerated_Domain_Value_Definition: Animal captured and tagged at the Nome, Alaska, landfill.
Enumerated_Domain_Value_Definition_Source: USGS Geographic Names Information System (GNIS)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Soldotna
Enumerated_Domain_Value_Definition: Animal captured and tagged at the Soldotna, Alaska, landfill.
Enumerated_Domain_Value_Definition_Source: USGS Geographic Names Information System (GNIS)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Utqiagvik
Enumerated_Domain_Value_Definition: Animal captured and tagged at the Utqiagvik, Alaska, landfill.
Enumerated_Domain_Value_Definition_Source: USGS Geographic Names Information System (GNIS)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Middleton Is.,AK
Enumerated_Domain_Value_Definition: Animal captured and tagged at the Middleton Island, Alaska.
Enumerated_Domain_Value_Definition_Source: USGS Geographic Names Information System (GNIS)
Attribute:
Attribute_Label: Animal_BandID
Attribute_Definition:
Unique field identification code, used to mark individual birds in the field. Such as a coded plastic neck collar, tarsal flag, or the final 5 digits of the metal leg band issued by the USGS Bird Banding Lab.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Unrepresentable_Domain: Unique field identifier
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition: No marker information provided.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Animal_Sex
Attribute_Definition:
The sex of the animal determined by size and plumage characteristics in the field.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: u
Enumerated_Domain_Value_Definition: Sex was not determined
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Animal_LifeStage
Attribute_Definition:
The age class or life stage of the animal at the start of the deployment.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Adult
Enumerated_Domain_Value_Definition: Gull with full adult plumage.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Subadult
Enumerated_Domain_Value_Definition: Gull with subadult plumage.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: fledgling
Enumerated_Domain_Value_Definition: Flighted gull with hatch year plumage.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Animal_ReproCondition
Attribute_Definition:
The reproductive condition of the animal at the start of the satellite transmitter deployment.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition: Reproductive condition not provided.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Animal_Mass
Attribute_Definition:
The mass of the animal at the time of the satellite transmitter attachment.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 680
Range_Domain_Maximum: 1838
Attribute_Units_of_Measure: grams
Attribute:
Attribute_Label: Animal_MortalityType
Attribute_Definition:
If deployment ended because of animal mortality; the cause of mortality if known or confidently suspected.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition: Mortality type not determined.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: PTT_Manufacturer
Attribute_Definition:
The company or person that produced the satellite transmitter (PTT).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: GeoTrak
Enumerated_Domain_Value_Definition: GeoTrak, Inc., Apex, North Carolina, USA
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Microwave Telemetry Inc.
Enumerated_Domain_Value_Definition: Microwave Telemetry, Inc., Columbia, MD, USA
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: PTT_Model
Attribute_Definition:
The manufacturer's model number of the satellite transmitter (PTT).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: GT-22GS-GPS
Enumerated_Domain_Value_Definition: GeoTrak, Inc., PTT model: "GT-22GS-GPS"
Enumerated_Domain_Value_Definition_Source: GeoTrak, Inc.
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: PTT-100
Enumerated_Domain_Value_Definition:
Microwave Telemetry model: "Solar PTT-100" or "Battery Powered PTT-100".
Enumerated_Domain_Value_Definition_Source: Microwave Telemetry, Inc.
Attribute:
Attribute_Label: PTT_Mass
Attribute_Definition: The mass of the satellite transmitter (PTT).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 22
Enumerated_Domain_Value_Definition: The mass of the transmitter in grams.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 40
Enumerated_Domain_Value_Definition: The mass of the transmitter in grams.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 60
Enumerated_Domain_Value_Definition: The mass of the transmitter in grams.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: PTT_Attachment
Attribute_Definition:
The method used to attach the satellite transmitter (PTT) to the animal.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: harness
Enumerated_Domain_Value_Definition:
Custom made harness, individually fit at the time of the satellite transmitter deployment.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: implant
Enumerated_Domain_Value_Definition: PTT was surgically implanted in the bird's abdominal cavity.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: PTT_PowerOutput
Attribute_Definition:
The amount of power dedicated by the satellite transmitter (PTT) to each transmission.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition: Power output not provided.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: PTT_PowerSource
Attribute_Definition:
Indicates whether the satellite transmitter (PTT) was powered by Li batteries or solar rechargeable Li batteries.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Solar
Enumerated_Domain_Value_Definition:
Satellite transmitter (PTT) was powered by solar rechargeable batteries.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Battery
Enumerated_Domain_Value_Definition: Satellite transmitter (PTT) was powered by Li batteries.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: PTT_RepetitionPeriod
Attribute_Definition: Nominal interval between PTT transmissions.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 60
Range_Domain_Maximum: 60
Attribute_Units_of_Measure: seconds
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition: Not provided
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: PTT_DutyCycle
Attribute_Definition:
Remarks describing the satellite transmitter (PTT) schedule and duration of transmission and non-transmission periods.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 5h on/43h off
Enumerated_Domain_Value_Definition: PTT transmission schedule.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 6 hr on 12 hr off for 4.5 d then 6 hr on 120 hr off
Enumerated_Domain_Value_Definition: PTT transmission schedule.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 6 hr on 12 hr off for 15 d then 6 hr on 120 hr off
Enumerated_Domain_Value_Definition: PTT transmission schedule.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: PTT_ReadoutMethod
Attribute_Definition:
The method by which the data are received from the satellite transmitter (PTT).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Argos System
Enumerated_Domain_Value_Definition: Data received by Argos.
Enumerated_Domain_Value_Definition_Source: Argos Manuals
Attribute:
Attribute_Label: PTT_LocationAlgorithm
Attribute_Definition:
The method by which Argos calculated location of the satellite transmitter (PTT).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: least squares
Enumerated_Domain_Value_Definition:
Least squares regression fit of a Doppler curve obtained from the perceived (shifted) frequencies of transmissions obtained as the satellite flew over the satellite transmitter (i.e., approaching, then retreating).
Enumerated_Domain_Value_Definition_Source: Argos Manuals
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Kalman filter
Enumerated_Domain_Value_Definition:
In 2011, Argos (CLS) introduced a location processing algorithm that takes into account platform dynamics and the use of a bank of Kalman filters to calculate positions. The applied Kalman filtering is a 2-step process: 1) the filter predicts the next position and its estimated error based on the previous position and its estimated error with a movement model; and 2) the filter calculates the new position and its estimated error by updating the predicted position using frequency measurements acquired during the satellite pass. Locations estimated by the Kalman filter method are also accompanied by metrics describing an estimated error ellipse.
Enumerated_Domain_Value_Definition_Source: Argos Manuals
Attribute:
Attribute_Label: taxon_details
Attribute_Definition:
Notes about the species/hybrid field identification (based on plumage) for gulls captured in Soldotna, when no photos were taken.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Unrepresentable_Domain: Notes about the species/hybrid field identification.
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition: Notes not provided.
Enumerated_Domain_Value_Definition_Source: Author defined
Detailed_Description:
Entity_Type:
Entity_Type_Label: gullSpecies_USGS_ASC_argosGPS_diag_filteredLocations
Entity_Type_Definition:
This table contains all records from the raw Argos DIAG tabular data included with this package, except that records with missing locations have been removed. Additionally, three variables were added after processing with the Douglas Argos Filter (DAF) algorithm (Douglas et al 2012). The three variables are: 1 & 2) 'Latitude' & 'Longitude', the algorithm's choice between the primary and alternate latitudes and longitudes (Argos Solution 1 and Solution 2) based on minimizing the animal's cumulative distance moved, and 3) 'Location_DAF_Filter', a binary flag indicating whether the location is plausible (=0)or implausible (=1). For records dated after the 'Deployment_End_Timestamp' (i.e., locations after an animal has died or a transmitter has been shed), location coordinates are presented in the 'Lat_ShedDead' and 'Lon_ShedDead' columns and no values are provided for 'Latitude' and 'Longitude'. All data are presented in a Comma Separated Value (CSV) formatted table.
Entity_Type_Definition_Source: Author defined
Attribute:
Attribute_Label: Data_Release_DOI
Attribute_Definition:
Unique 'Digital Object Identifier' (DOI) that provides a permanent link to this data package and its metadata.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 10.5066/P9FZ4OJW
Enumerated_Domain_Value_Definition: The DOI that links uniquely to this data package.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Data_Release_Version
Attribute_Definition:
The data package version that was current at the time each record was released. The structure of this data package can accommodate future versions that add additional tracking data for existing or newly tracked individuals of the same species. See version history file included with this data package for additional details.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: v01
Enumerated_Domain_Value_Definition: Version 1.0
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: v02
Enumerated_Domain_Value_Definition: Version 2.0
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Animal_ID
Attribute_Definition:
Unique identifier for each individual tracked with a satellite transmitter (PTT).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Unrepresentable_Domain:
Unique identifier for each individual tracked with a satellite transmitter (PTT). A concatenation of a four letter species code, capture year, and PTT_ID.
Attribute:
Attribute_Label: Animal_Species
Attribute_Definition:
Scientific name of the species of animal tracked with a satellite transmitter (PTT).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Larus hyperboreus
Enumerated_Domain_Value_Definition: Scientific name for Glaucous gull
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Larus glaucescens
Enumerated_Domain_Value_Definition: Scientific name for Glaucous-winged gull
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Larus argentatus
Enumerated_Domain_Value_Definition: Scientific name for Herring gull
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Larus
Enumerated_Domain_Value_Definition:
Genus name of suspected hybrid: Herring gull x Glaucous-winged gull
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Location_Timestamp_UTC
Attribute_Definition:
The UTC timestamp (date and time) of the satellite transmitter (PTT) location estimate.
Attribute_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2000/07/18 00:04:18
Range_Domain_Maximum: 2019/11/12 23:40:00
Attribute_Units_of_Measure: YYYY/MM/DD HH:mm:ss (UTC)
Attribute:
Attribute_Label: Latitude
Attribute_Definition:
The latitude of the satellite transmitter (PTT) location estimate. Chosen by the Douglas Argos Filter (DAF) from the primary and alternate latitudes ('Location_Lat_Solution_1' vs 'Location_Lat_Solution_2'). See the Douglas Argos Filter process step.
Attribute_Definition_Source: Douglas et al 2012
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 36.963
Range_Domain_Maximum: 78.234
Attribute_Units_of_Measure: Decimal degrees (WGS84)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition:
A 'Blank Cell' indicates a satellite transmitter (PTT) was no longer deployed on a live free-ranging animal (i.e., 'Tracking_Status' is 'shed', 'dead', or 'shed/dead'). Note that when this occurs, the latitude of the location estimate is recorded in the 'Lat_ShedDead' variable.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Longitude
Attribute_Definition:
The longitude of the satellite transmitter (PTT) location estimate. Chosen by the Douglas Argos Filter (DAF) from the primary and alternate longitudes ('Location_Lon_Solution_1' vs 'Location_Lon_Solution_2'). See the Douglas Argos Filter process step.
Attribute_Definition_Source: Douglas et al 2012
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -179.911
Range_Domain_Maximum: 179.632
Attribute_Units_of_Measure: Decimal degrees (WGS84)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition:
A 'Blank Cell' indicates a satellite transmitter (PTT) was no longer deployed on a live free-ranging animal (i.e., 'Tracking_Status' is 'shed', 'dead', or 'shed/dead'). Note that when this occurs, the longitude of the location estimate is recorded in the 'Lon_ShedDead' variable.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Location_DAF_Filter
Attribute_Definition:
Result of the Douglas Argos filter (DAF) algorithm plausibility check. The binary variable indicates a plausible (=0) or implausible (=1) satellite transmitter (PTT) location estimate based on user-defined thresholds pertaining to distance, movement rate, and turn angle. See the Douglas Argos Filter process step.
Attribute_Definition_Source: Douglas et al 2012
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Implausible location estimate
Enumerated_Domain_Value_Definition_Source: Douglas et al 2012
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Plausible location estimate
Enumerated_Domain_Value_Definition_Source: Douglas et al 2012
Attribute:
Attribute_Label: Location_Class
Attribute_Definition:
Index of the accuracy of the location estimate; in decreasing order: 3,2,1,0,A,B,Z. The raw DIAG data from the Argos System provides two location estimates ('primary' and 'alternate'). Different algorithms have been used to estimate location. The Least Squares algorithm provides two different locations, with the 'primary' assumed to better reflect the actual PTT location. However, in approximately 1-3% of cases, the 'alternate' location is more accurate. For these processed data the DAF algorithm has been applied to rectify incorrect choices between the 'primary' and 'alternate' location estimate. The Kalman Filter provides two identical location estimates. Note that the algorithm used for each PTT deployment is recorded in the "deploymentAttributes" table included with this data package.
Attribute_Definition_Source: Argos Manuals
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 3
Enumerated_Domain_Value_Definition: 1-sigma location error <250 meters.
Enumerated_Domain_Value_Definition_Source: Argos Manuals
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 2
Enumerated_Domain_Value_Definition: 1-sigma location error between 250 meters and 500 meters.
Enumerated_Domain_Value_Definition_Source: Argos Manuals
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: 1-sigma location error between 500 meters and 1500 meters.
Enumerated_Domain_Value_Definition_Source: Argos Manuals
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: 1-sigma location error >1500 meters
Enumerated_Domain_Value_Definition_Source: Argos Manuals
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: A
Enumerated_Domain_Value_Definition: No accuracy estimation; 3 messages received per satellite pass.
Enumerated_Domain_Value_Definition_Source: Argos Manuals
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: B
Enumerated_Domain_Value_Definition:
No accuracy estimation; 1 or 2 messages received per satellite pass.
Enumerated_Domain_Value_Definition_Source: Argos Manuals
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Z
Enumerated_Domain_Value_Definition: No accuracy estimation; invalid location.
Enumerated_Domain_Value_Definition_Source: Argos Manuals
Attribute:
Attribute_Label: Location_NOPC
Attribute_Definition:
Number of Plausibility Checks that gave a positive result. Plausibility checks are conducted by Argos when the satellite transmitter location is estimated and are used by the algorithm when classifying the location accuracy in the Location_Class attribute.
Attribute_Definition_Source: Argos Manuals
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 4
Attribute_Units_of_Measure: count
Attribute:
Attribute_Label: Location_ErrorRadius
Attribute_Definition:
Estimated radius of the error-ellipse around the satellite transmitter's location. The error-ellipse defines a region within which the transmitter’s true location would have a 63.3% probability of occurrence (drawn from a bivariate normal distribution to lie within its SQRT(2)sigma ellipse). Calculated as: SQRT(Semimajor_Axis x Semiminor_Axis). Not available for data before July 2009. Values of zero (0) should be treated as missing data.
Attribute_Definition_Source: Argos Manuals
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 883925
Attribute_Units_of_Measure: meters
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition: Attribute value not provided for this record.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Location_ErrorSemimajor
Attribute_Definition:
Half the length of the longest axis of the estimated error-ellipse of the satellite transmitter location. Not available for data before July 2009. Values of zero (0) should be treated as missing data.
Attribute_Definition_Source: Argos Manuals
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 992775
Attribute_Units_of_Measure: meters
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition: Attribute value not provided for this record.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Location_ErrorSemiminor
Attribute_Definition:
Half the length of the shortest axis of the estimated error-ellipse of the satellite transmitter location. Not available for data before July 2009. Values of zero (0) should be treated as missing data.
Attribute_Definition_Source: Argos Manuals
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 389524
Attribute_Units_of_Measure: meters
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition: Attribute value not provided for this record.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Location_ErrorOrientation
Attribute_Definition:
Geographic orientation of the major axis of the estimated error-ellipse of the satellite transmitter location. Not available for data before July 2009.
Attribute_Definition_Source: Argos Manuals
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 179
Attribute_Units_of_Measure: degrees
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition: Attribute value not provided for this record.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Location_ErrorGDOP
Attribute_Definition:
Geometric Dilution of Precision. A measure of the effect of the geometry of the satellite transmitter's configuration on the accuracy of the location estimate. The actual location accuracy depends on both the GDOP value and the quality of the transmitter’s frequency stability. Generally, a smaller GDOP value yields a more accurate position. Values of zero (0) should be treated as missing data.
Attribute_Definition_Source: Argos Manuals
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 97
Range_Domain_Maximum: 32161
Attribute_Units_of_Measure: meters/Hertz
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition: Attribute value not provided for this record.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Location_IndexQuality
Attribute_Definition:
A "Quality Indicator" from Argos. A composite of two single digits, each of which denotes a categorical variable describing parameters that Argos considers when assigning the Location_Class to the location estimate. The parameters describe long-, mid-, and short-term frequency shifts in the received transmissions. The first digit indicates the residual error on the frequency calculation. The second digit indicates transmitter oscillator frequency drift between two satellite overpasses. Single digit values imply a zero for the first digit.
Attribute_Definition_Source: Argos Manuals
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 68
Attribute_Units_of_Measure: coded index
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition: Attribute value not provided for this record.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Location_LI_Index
Attribute_Definition:
A legacy variant of the 'Location_IndexQuality' attribute used from July 1989 to mid-June 1993 (when IndexQuality, IQ, was introduced).
Attribute_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition: Attribute value not provided for this record.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Location_QQ_Index
Attribute_Definition:
A legacy variant of the 'Location_IndexQuality' attribute used from February 1988 to June 1989.
Attribute_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition: Attribute value not provided for this record.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Location_AssumedAltitude
Attribute_Definition:
Assumed altitude of the satellite transmitter (PTT). Used for estimating the location.
Attribute_Definition_Source: Argos Manuals
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -0.042
Range_Domain_Maximum: 2.308
Attribute_Units_of_Measure: kilometers
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition: Attribute value not provided for this record.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Location_Lat_Solution_1
Attribute_Definition:
The latitude of the satellite transmitter (PTT) location estimate (Argos Solution 1).
Attribute_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 36.963
Range_Domain_Maximum: 78.234
Attribute_Units_of_Measure: Decimal degrees (WGS84)
Attribute:
Attribute_Label: Location_Lon_Solution_1
Attribute_Definition:
The longitude of the satellite transmitter (PTT) location estimate (Argos Solution 1).
Attribute_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -179.911
Range_Domain_Maximum: 179.632
Attribute_Units_of_Measure: Decimal degrees (WGS84)
Attribute:
Attribute_Label: Location_Lat_Solution_2
Attribute_Definition:
The latitude of the alternate satellite transmitter (PTT) location estimate (Argos Solution 2).
Attribute_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -11.424
Range_Domain_Maximum: 87.820
Attribute_Units_of_Measure: Decimal degrees (WGS84)
Attribute:
Attribute_Label: Location_Lon_Solution_2
Attribute_Definition:
The longitude of the alternate satellite transmitter (PTT) location estimate (Argos Solution 2).
Attribute_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -179.911
Range_Domain_Maximum: 179.584
Attribute_Units_of_Measure: Decimal degrees (WGS84)
Attribute:
Attribute_Label: PTT_ID
Attribute_Definition:
PTT (Platform Transmitter Terminal) ID number from Argos to uniquely identify a satellite transmitter during deployment.
Attribute_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Unrepresentable_Domain: Unique numeric identifier of the satellite transmitter.
Attribute:
Attribute_Label: PTT_Program
Attribute_Definition: Argos Program identifier
Attribute_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Unrepresentable_Domain:
Unique 3-6 digit identifier of the particular Argos programs used.
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition: Attribute value not provided for this record.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Tracking_Status
Attribute_Definition:
Deduced status of the animal and satellite transmitter (PTT) at the time of the respective data record. Determined by assessment of sensor and movement data. For example, activity sensor values that remain constant, temperature sensor values that emulate ambient conditions, and/or lack of expected movement.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: alive
Enumerated_Domain_Value_Definition:
Coded if there was no evidence or knowledge that the animal died or the satellite transmitter was shed.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: shed
Enumerated_Domain_Value_Definition:
Coded only if the animal was later re-observed alive without an attached satellite transmitter.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: dead
Enumerated_Domain_Value_Definition:
Coded only if: 1) a carcass was observed or reported (e.g., harvested), 2) an implanted satellite transmitter showed an implausible temperature for a warm-blooded animal, or 3) an externally attached satellite transmitter with an attachment method that was very unlikely to fail/shed showed stationary movement data.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: shed/dead
Enumerated_Domain_Value_Definition:
Coded if there was evidence that the animal died or the satellite transmitter was shed, but distinction was ambiguous. It was believed that gulls would be unable to shed their harness, therefore, we reclassified shed/dead=dead.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: undetermined
Enumerated_Domain_Value_Definition:
Coded if there was no assessment of mortality or satellite transmitter detachment. Data users will have to make their own assessments.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Lat_ShedDead
Attribute_Definition:
The latitude of a satellite transmitter (PTT) that is no longer deployed on a live free-ranging animal (i.e., 'Tracking_Status' is 'shed', 'dead', or 'shed/dead'). Chosen by the Douglas Argos Filter (DAF) from the primary and alternate latitudes ('Location_Lat_Solution_1' vs 'Location_Lat_Solution_2').
Attribute_Definition_Source: Douglas et al 2012
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 40.772
Range_Domain_Maximum: 71.281
Attribute_Units_of_Measure: Decimal degrees (WGS84)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition:
The satellite transmitter (PTT) is deployed on a live free-ranging animal (i.e., 'Tracking_Status' is 'alive'). The latitude of the location estimate can be found in the 'Latitude' column.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Lon_ShedDead
Attribute_Definition:
The longitude of a satellite transmitter (PTT) that is no longer deployed on a live free-ranging animal (i.e., 'Tracking_Status' is 'shed', 'dead', or 'shed/dead'). Chosen by the Douglas Argos Filter (DAF) from the primary and alternate longitudes ('Location_Lon_Solution_1' vs 'Location_Lon_Solution_2').
Attribute_Definition_Source: Douglas et al 2012
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -167.962
Range_Domain_Maximum: 156.521
Attribute_Units_of_Measure: Decimal degrees (WGS84)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition:
The satellite transmitter (PTT) is deployed on a live free-ranging animal (i.e., 'Tracking_Status' is 'alive'). The longitude of the location estimate can be found in the 'Longitude' column.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Pass_Satellite_ID
Attribute_Definition:
The satellite identifier (A2, MA, MB, MC, NH, ND, NJ, NK, NL, NM, NN, NP, SR).
Attribute_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: A2
Enumerated_Domain_Value_Definition: Japanese satellite: ADEOS-II
Enumerated_Domain_Value_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: MA
Enumerated_Domain_Value_Definition: MetOp satellite: METOP-A
Enumerated_Domain_Value_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: MB
Enumerated_Domain_Value_Definition: MetOp satellite: METOP-B
Enumerated_Domain_Value_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: MC
Enumerated_Domain_Value_Definition: MetOp satellite: METOP-C
Enumerated_Domain_Value_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: NH
Enumerated_Domain_Value_Definition: NOAA satellite: NOAA-11
Enumerated_Domain_Value_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ND
Enumerated_Domain_Value_Definition: NOAA satellite: NOAA-12
Enumerated_Domain_Value_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: NJ
Enumerated_Domain_Value_Definition: NOAA satellite: NOAA-14
Enumerated_Domain_Value_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: NK
Enumerated_Domain_Value_Definition: NOAA satellite: NOAA-15
Enumerated_Domain_Value_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: NL
Enumerated_Domain_Value_Definition: NOAA satellite: NOAA-16
Enumerated_Domain_Value_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: NM
Enumerated_Domain_Value_Definition: NOAA satellite: NOAA-17
Enumerated_Domain_Value_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: NN
Enumerated_Domain_Value_Definition: NOAA satellite: NOAA-18
Enumerated_Domain_Value_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: NP
Enumerated_Domain_Value_Definition: NOAA satellite: NOAA-19
Enumerated_Domain_Value_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: SR
Enumerated_Domain_Value_Definition: ISRO CNES satellite: SARAL
Enumerated_Domain_Value_Definition_Source: Provided by Argos
Attribute:
Attribute_Label: Pass_Messages_N
Attribute_Definition:
The number of messages from the transmitter (PTT) received by the respective satellite during its overpass.
Attribute_Definition_Source: Argos Manuals
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 15
Attribute_Units_of_Measure: count
Attribute:
Attribute_Label: Pass_Messages_gt120dB
Attribute_Definition:
The number of messages from the transmitter (PTT) received by the respective satellite during its overpass with a signal strength (at the satellite) greater than -120 decibels.
Attribute_Definition_Source: Argos Manuals
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 8
Attribute_Units_of_Measure: count
Attribute:
Attribute_Label: Pass_Messages_BestLeveldB
Attribute_Definition:
Strength (at the satellite) of the strongest transmission from the transmitter (PTT) collected during the respective satellite’s overpass.
Attribute_Definition_Source: Argos Manuals
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -140
Range_Domain_Maximum: -108
Attribute_Units_of_Measure: decibels
Attribute:
Attribute_Label: Pass_Duration
Attribute_Definition:
Time elapsed between the first and last message from the transmitter (PTT) received by the respective satellite during its overpass. A value of zero implies only one message was received during the overpass.
Attribute_Definition_Source: Argos Manuals
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 913
Attribute_Units_of_Measure: seconds
Attribute:
Attribute_Label: Pass_EstimatedFrequency
Attribute_Definition:
Estimate of the satellite transmitter's true transmission (oscillator) frequency that strives to account for long-term frequency drift during the course of the transmitter’s deployment that is apparent to the Argos System.
Attribute_Definition_Source: Argos Manuals
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 401647516.3
Range_Domain_Maximum: 401750000.0
Attribute_Units_of_Measure: Hertz
Detailed_Description:
Entity_Type:
Entity_Type_Label: gullSpecies_USGS_ASC_argosGPS_decodedSensor
Entity_Type_Definition:
This file contains all decoded sensor data derived from the raw Argos DS data included with this package. Each record contains three decoded variables (temperature, voltage, and activity) as well as sequential counters of the number of transmissions and the number of week post deployment. These sensor data were obtained using the PTT manufacturer's software with the Argos DS data as input. Presented in a Comma Separated Value (CSV) formatted table.
Entity_Type_Definition_Source: Author defined
Attribute:
Attribute_Label: Data_Release_DOI
Attribute_Definition:
Unique 'Digital Object Identifier' (DOI) that provides a permanent link to this data package and its metadata.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 10.5066/P9FZ4OJW
Enumerated_Domain_Value_Definition: The DOI that links uniquely to this data package.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Data_Release_Version
Attribute_Definition:
The data package version that was current at the time each record was released. The structure of this data package can accommodate future versions that add additional tracking data for existing or newly tracked individuals of the same species. See version history file included with this data package for additional details.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: v01
Enumerated_Domain_Value_Definition: Version 1.0
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: v02
Enumerated_Domain_Value_Definition: Version 2.0
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Animal_ID
Attribute_Definition:
Unique identifier for each individual tracked with a satellite transmitter (PTT).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Unrepresentable_Domain:
Unique identifier for each individual tracked with a satellite transmitter (PTT). A concatenation of a four letter species code 'gull', capture year, and PTT_ID.
Attribute:
Attribute_Label: Animal_Species
Attribute_Definition:
Scientific name of the species of animal tracked with a satellite transmitter (PTT).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Larus hyperboreus
Enumerated_Domain_Value_Definition: Scientific name for Glaucous gull
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Larus glaucescens
Enumerated_Domain_Value_Definition: Scientific name for Glaucous-winged gull
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Larus argentatus
Enumerated_Domain_Value_Definition: Scientific name for Herring gull
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Larus
Enumerated_Domain_Value_Definition:
Genus name of suspected hybrid: Herring gull x Glaucous-winged gull
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Tracking_Status
Attribute_Definition:
Deduced status of the animal and satellite transmitter (PTT) at the time of the respective data record. Determined by assessment of sensor and movement data. For example, activity sensor values that remain constant, temperature sensor values that emulate ambient conditions, and/or lack of expected movement.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: alive
Enumerated_Domain_Value_Definition:
Coded if there was no evidence or knowledge that the animal died or the satellite transmitter was shed.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: shed
Enumerated_Domain_Value_Definition:
Coded only if the animal was later re-observed alive without an attached satellite transmitter.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: dead
Enumerated_Domain_Value_Definition:
Coded only if: 1) a carcass was observed or reported (e.g., harvested), 2) an implanted satellite transmitter showed an implausible temperature for a warm-blooded animal, or 3) an externally attached satellite transmitter with an attachment method that was very unlikely to fail/shed showed stationary movement data.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: shed/dead
Enumerated_Domain_Value_Definition:
Coded if there was evidence that the animal died or the satellite transmitter was shed, but distinction was ambiguous. It was believed that gulls would be unable to shed their harness, therefore, we reclassified shed/dead=dead.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: undetermined
Enumerated_Domain_Value_Definition:
Coded if there was no assessment of mortality or satellite transmitter detachment. Data users will have to make their own assessments.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: PTT_ID
Attribute_Definition:
PTT (Platform Transmitter Terminal) ID number from Argos to uniquely identify a satellite transmitter during deployment.
Attribute_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Unrepresentable_Domain: Unique numeric identifier of the satellite transmitter.
Attribute:
Attribute_Label: Sensor_Timestamp_UTC
Attribute_Definition:
The timestamp (date and time) of each message from each satellite transmitter (PTT), corresponding to the time when the temperature, voltage, and activity sensors were interrogated.
Attribute_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2000/07/18 00:01:08
Range_Domain_Maximum: 2019/11/12 23:17:48
Attribute_Units_of_Measure: YYYY/MM/DD HH:mm:ss (UTC)
Attribute:
Attribute_Label: Sensor_Temperature_C
Attribute_Definition:
The internal temperature of the satellite transmitter (PTT) measured just prior to transmission.
Attribute_Definition_Source: GeoTrak manual, data parser software
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -22.55
Range_Domain_Maximum: 63.35
Attribute_Units_of_Measure: Degrees Celsius
Attribute:
Attribute_Label: Sensor_Voltage
Attribute_Definition:
The battery voltage of the satellite transmitter (PTT) just prior to signal transmission.
Attribute_Definition_Source: GeoTrak manual, data parser software
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 4.26
Attribute_Units_of_Measure: Volts
Attribute:
Attribute_Label: Sensor_Activity
Attribute_Definition:
The activity assessed by a revolving counter that increments with changes in satellite transmitter (PTT) orientation. The value itself does not have meaning, rather, it is the change in value (or lack thereof) that indicates animal (transmitter) movement (or not).
Attribute_Definition_Source: GeoTrak manual, data parser software
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 255
Attribute_Units_of_Measure: count
Attribute:
Attribute_Label: PTT_Tmx_Count
Attribute_Definition: The n-th transmission made by PTT
Attribute_Definition_Source: GeoTrak manual, data parser software
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 65533
Attribute_Units_of_Measure: count
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition: Attribute value not provided for this record.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: PTT_Sys_Week
Attribute_Definition: The n-th week of transmissions by the PTT
Attribute_Definition_Source: GeoTrak manual, data parser software
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 121
Attribute_Units_of_Measure: weeks
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition: Attribute value not provided for this record.
Enumerated_Domain_Value_Definition_Source: Author defined
Detailed_Description:
Entity_Type:
Entity_Type_Label: gullSpecies_USGS_ASC_argosGPS_GPS_filteredLocations.csv
Entity_Type_Definition:
This file contains all records with GPS locations. Additionally, one binary variable was added after processing with the Speed-Filter as implemented in Movebank, it indicates whether a location is plausible based on the speed of travel between GPS fixes. For records dated after the 'Deployment_End_Timestamp' (i.e., locations after an animal has died or a transmitter has been shed), location coordinates are presented in the 'Lat_ShedDead' and 'Lon_ShedDead' columns and no values are provided for 'Latitude' and 'Longitude'. All data are presented in a Comma Separated Value (CSV) formatted table.
Entity_Type_Definition_Source: Author defined
Attribute:
Attribute_Label: Data_Release_DOI
Attribute_Definition:
Unique 'Digital Object Identifier' (DOI) that provides a permanent link to this data package and its metadata.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 10.5066/P9FZ4OJW
Enumerated_Domain_Value_Definition: The DOI that links uniquely to this data package.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Data_Release_Version
Attribute_Definition:
The data package version that was current at the time each record was released. The structure of this data package can accommodate future versions that add additional tracking data for existing or newly tracked individuals of the same species. See version history file included with this data package for additional details.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: v01
Enumerated_Domain_Value_Definition: Version 1.0
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Animal_ID
Attribute_Definition:
Unique identifier for each individual tracked with a satellite transmitter (PTT).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Unrepresentable_Domain:
Unique identifier for each individual tracked with a satellite transmitter (PTT). A concatenation of a four letter species code 'gull', capture year, and PTT_ID.
Attribute:
Attribute_Label: Animal_Species
Attribute_Definition:
Scientific name of the species of animal tracked with a satellite transmitter (PTT).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Larus hyperboreus
Enumerated_Domain_Value_Definition: Scientific name for Glaucous gull
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Larus glaucescens
Enumerated_Domain_Value_Definition: Scientific name for Glaucous-winged gull
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Larus argentatus
Enumerated_Domain_Value_Definition: Scientific name for Herring gull
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Larus
Enumerated_Domain_Value_Definition:
Genus name of suspected hybrid: Herring gull x Glaucous-winged gull
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Location_Timestamp_UTC
Attribute_Definition:
The UTC timestamp (date and time) of the satellite transmitter (PTT) GPS location estimate.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2016/06/09 12:00:36
Range_Domain_Maximum: 2019/11/09 08:00:33
Attribute_Units_of_Measure: YYYY/MM/DD HH:mm:ss (UTC)
Attribute:
Attribute_Label: Latitude
Attribute_Definition:
The latitude of the satellite transmitter (PTT) collected by an onboard GPS receiver and communicated through the Argos System.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4.3907
Range_Domain_Maximum: 89.3314
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition:
A 'Blank Cell' indicates a satellite transmitter (PTT) was no longer deployed on a live free-ranging animal (i.e., 'Tracking_Status' is 'shed', 'dead', or 'shed/dead'). Note that when this occurs, the latitude of the GPS location estimate is recorded in the 'Lat_ShedDead' variable.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Longitude
Attribute_Definition:
The longitude of the satellite transmitter (PTT) collected by an onboard GPS receiver and communicated through the Argos System.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -179.7870
Range_Domain_Maximum: 179.6021
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition:
A 'Blank Cell' indicates a satellite transmitter (PTT) was no longer deployed on a live free-ranging animal (i.e., 'Tracking_Status' is 'shed', 'dead', or 'shed/dead'). Note that when this occurs, the longitude of the GPS location estimate is recorded in the 'Lon_ShedDead' variable.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Location_Speed_Filter
Attribute_Definition:
Result of maximum speed plausibility filter applied using the 'speed_filter' tool at www.movebank.org with a 35 m/s speed threshold and a 100 m tolerance. The binary variable indicates a plausible (=0) or implausible (=1) satellite transmitter (PTT) GPS location estimate.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Plausible location estimate
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Implausible location estimate
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Location_Class
Attribute_Definition:
Hard-coded with the letter "G" to denote a location determined by GPS. This variable is included to guide discrimination if these GPS data are combined with Argos data.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: G
Enumerated_Domain_Value_Definition: GPS determined location
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Location_GPS_Acquisition_Seconds
Attribute_Definition: Number of seconds required to acquire (fix) the GPS location.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 490
Attribute_Units_of_Measure: seconds
Attribute:
Attribute_Label: Location_GPS_Azimuth
Attribute_Definition:
Direction of PTT movement during acquisition of the GPS location, 1-360 degrees, zero(0) appears to be missing data.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: 360
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank cell
Enumerated_Domain_Value_Definition: Attribute value not provided for this record.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Location_GPS_Error
Attribute_Definition:
Categorical estimate of GPS error range provided by the PTT manufacturer based on HDOP during acquisition.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: < 26 m
Enumerated_Domain_Value_Definition: GPS location error < 26 meters
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 26 m - 50 m
Enumerated_Domain_Value_Definition: GPS location error 26 - 50 meters
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 51 m - 75 m
Enumerated_Domain_Value_Definition: GPS location error 51 - 75 meters
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 76 m - 100 m
Enumerated_Domain_Value_Definition: GPS location error 76 - 100 meters
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 101 m - 200 m
Enumerated_Domain_Value_Definition: GPS location error 101 - 200 meters
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 201 m - 500
Enumerated_Domain_Value_Definition: GPS location error 201 - 500 meters
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 501 m - 1000 m
Enumerated_Domain_Value_Definition: GPS location error 501 - 1000 meters
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: > 5000 m
Enumerated_Domain_Value_Definition: GPS location error > 5000 m
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: invalid value
Enumerated_Domain_Value_Definition: Invalid GPS location error value
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Location_GPS_Nsatellites
Attribute_Definition:
Number of GPS satellites involved in acquiring the GPS location.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 7
Attribute_Units_of_Measure: Count
Attribute:
Attribute_Label: Location_GPS_Speed
Attribute_Definition:
Speed of the transmitter (PTT) during the GPS acquisition period (instantaneous speed). Values are derived by the GPS unit in the PTT. They are not used in the filtering. Rates of movement from one location to the next are used for the filtering.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 255
Attribute_Units_of_Measure: meters per second
Attribute:
Attribute_Label: Location_GPS_Fix_Type
Attribute_Definition: GPS Fix Type: two or three dimensional (2D or 3D).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 2D
Enumerated_Domain_Value_Definition: Two dimensional GPS fix (latitude and longitude)
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 3D
Enumerated_Domain_Value_Definition: Three dimensional GPS fix (latitude, longitude, elevation)
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Location_GPS_Elevation
Attribute_Definition: Estimated GPS elevation when fix-type = 3D.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank cell
Enumerated_Domain_Value_Definition: Attribute value not provided for this record.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Location_GPS_Elevation_Error
Attribute_Definition: Estimate of GPS elevation error.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank cell
Enumerated_Domain_Value_Definition: Attribute value not provided for this record.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Location_GPS_HDOP
Attribute_Definition:
GPS location horizontal dilution of precision (HDOP). Related to the geometry of the satellite locations during GPS acquisition, lower values of HDOP infer better 2D GPS accuracy.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank cell
Enumerated_Domain_Value_Definition: Attribute value not provided for this record.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Location_GPS_VDOP
Attribute_Definition:
GPS location vertical dilution of precision (VDOP). Related to the geometry of the satellite locations during GPS acquisition, lower values of VDOP infer better 3D GPS accuracy.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank cell
Enumerated_Domain_Value_Definition: Attribute value not provided for this record.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: PTT_ID
Attribute_Definition:
PTT (Platform Transmitter Terminal) ID number from Argos to uniquely identify a satellite transmitter during deployment.
Attribute_Definition_Source: Provided by Argos
Attribute_Domain_Values:
Unrepresentable_Domain: Unique numeric identifier of the satellite transmitter.
Attribute:
Attribute_Label: Tracking_Status
Attribute_Definition:
Deduced status of the animal and satellite transmitter (PTT) at the time of the respective data record. Determined by assessment of sensor and movement data. For example, activity sensor values that remain constant, temperature sensor values that emulate ambient conditions, and/or lack of expected movement.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: alive
Enumerated_Domain_Value_Definition:
Coded if there was no evidence or knowledge that the animal died or the satellite transmitter was shed.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: dead
Enumerated_Domain_Value_Definition:
Coded only if: 1) a carcass was observed or reported (e.g., harvested), 2) an implanted satellite transmitter showed an implausible temperature for a warm-blooded animal, or 3) an externally attached satellite transmitter with an attachment method that was very unlikely to fail/shed showed stationary movement data.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: shed/dead
Enumerated_Domain_Value_Definition:
Coded if there was evidence that the animal died or the satellite transmitter was shed, but distinction was ambiguous. It was believed that gulls would be unable to shed their harness, therefore, we reclassified shed/dead=dead.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: undetermined
Enumerated_Domain_Value_Definition:
Coded if there was no assessment of mortality or satellite transmitter detachment. Data users will have to make their own assessments.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Lat_ShedDead
Attribute_Definition:
The GPS latitude of a satellite transmitter (PTT) that is no longer deployed on a live free-ranging animal (i.e., 'Tracking_Status' is 'shed', 'dead', or 'shed/dead').
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 37.7172
Range_Domain_Maximum: 86.5973
Attribute_Units_of_Measure: Decimal degrees (WGS84)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition:
The satellite transmitter (PTT) is deployed on a live free-ranging animal (i.e., 'Tracking_Status' is 'alive'). The latitude of the location estimate can be found in the 'Latitude' column.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Lon_ShedDead
Attribute_Definition:
The GPS longitude of a satellite transmitter (PTT) that is no longer deployed on a live free-ranging animal (i.e., 'Tracking_Status' is 'shed', 'dead', or 'shed/dead').
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -169.4191
Range_Domain_Maximum: 156.4807
Attribute_Units_of_Measure: Decimal degrees (WGS84)
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank Cell
Enumerated_Domain_Value_Definition:
The satellite transmitter (PTT) is deployed on a live free-ranging animal (i.e., 'Tracking_Status' is 'alive'). The longitude of the location estimate can be found in the 'Longitude' column.
Enumerated_Domain_Value_Definition_Source: Author defined
Overview_Description:
Entity_and_Attribute_Overview:
The processData package includes 4 Comma Separate Value (CSV) formatted tables:
(1) "gullSpecies_USGS_ASC_argosGPS_GPS_filteredLocations.csv" contains one record for every GPS location estimate collected, accompanied by a binary flag that denotes an algorithm's plausibility check. Each record also includes a 'Tracking_Status' variable that denotes whether the location was collected from a live animal, a dead animal, or shed transmitter.
(2) "gullSpecies_USGS_ASC_argosGPS_diag_filteredLocations.csv" contains one record for every Argos location estimate collected, accompanied by a binary flag that denotes an algorithm's plausibility check. Each record also includes a 'Tracking_Status' variable that denotes whether the location was collected from a live animal, a dead animal, or shed transmitter.
(3) "gullSpecies_USGS_ASC_argosGPS_decodedSensor.csv" contains decoded sensor data such as a transmitter's temperature, battery voltage, and motion (activity).
(4) "gullSpecies_USGS_ASC_argosGPS_deploymentAttributes.csv" contains one record for each transmitter deployment. The deployment attributes table contains information such as when the transmitter was attached to the animal, when tracking of a live animal ended, and variables describing the animal and transmitter.
Entity_and_Attribute_Detail_Citation: Author defined
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey, Alaska Science Center
Contact_Address:
Address_Type: Mailing and Physical
Address: 4210 University Drive
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99508
Country: USA
Contact_Voice_Telephone: 907-786-7000
Contact_Electronic_Mail_Address: ascweb@usgs.gov
Resource_Description:
The U.S. Geological Survey, Alaska Science Center is the authoritative source and distributor of these data.
Distribution_Liability:
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data for other purposes or on all computer systems, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: CSV
Format_Information_Content:
Data are distributed in a Zip package containing data in CSV and ASCII text file formats and FGDC metadata in XML and HTML formats.
File_Decompression_Technique:
Compression applied by the 7-Zip utility using default compression (5). The Zip package can be decompressed and unpacked by open source or commercially available unzip tools.
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: https://doi.org/10.5066/P9FZ4OJW
Fees: None
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Movebank
Contact_Address:
Address_Type: Mailing and Physical
Address: Max Planck Institute for Ornithology
Address: Schloßallee 2
City: Radolfzell
State_or_Province: Baden-Württemberg
Postal_Code: 78315
Country: Germany
Contact_Voice_Telephone: 49(0)7732 1501-1
Contact_Electronic_Mail_Address: info@orn.mpg.de
Resource_Description:
Movebank is an alternative distributor of the processed tracking data.
Distribution_Liability:
The USGS Alaska Science Center is the authoritative source and distributor of these data. To facilitate discovery and access to these data, a copy of the deployment attributes and processed tracking data is also made available through Movebank. The USGS Alaska Science Center is not responsible for any problems associated with the accuracy, maintenance, or integrity of the Movebank version of these data.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: CSV
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: https://www.movebank.org/
Fees: None
Ordering_Instructions:
Publicly available as Tracking Data from www.movebank.org, in the study entitled: "gullSpecies_USGS_ASC_argosGPS"
Metadata_Reference_Information:
Metadata_Date: 20210305
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey, Alaska Science Center
Contact_Address:
Address_Type: Mailing and Physical
Address: 4210 University Drive
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99508
Country: USA
Contact_Voice_Telephone: 907-786-7000
Contact_Electronic_Mail_Address: ascweb@usgs.gov
Metadata_Standard_Name:
FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001.1-1999
Generated by mp version 2.9.50 on Fri Mar 5 13:27:09 2021