Near-surface Nutrients Data from Gulf of Alaska Fjords, 2004-2011

Identification_Information:

Citation:

Citation_Information:

Originator:

Mayumi Arimitsu (ORCID: 0000-0001-6982-2238), U.S. Geological Survey research ecologist

Originator: John Piatt, U.S. Geological Survey research wildlife biologist
Originator:

Brielle Heflin, U.S. Geological Survey biological science technician

Publication_Date: 2017
Title:

Near-surface Nutrients Data from Gulf of Alaska Fjords, 2004-2011

Geospatial_Data_Presentation_Form: tabular digital data
Publication_Information:

Publication_Place: Anchorage, AK
Publisher: U.S. Geological Survey, Alaska Science Center

Other_Citation_Details:

Please cite this dataset as: Arimitsu, M.L., Piatt, J.F., Heflin, B.H. 2017. Near-surface Nutrients Data from Gulf of Alaska Fjords, 2004-2011: U.S. Geological Survey data release, http://dx.doi.org/10.5066/F7K072DR

Online_Linkage: http://dx.doi.org/10.5066/F7K072DR
Larger_Work_Citation:

Citation_Information:

Originator: John Piatt, U.S. Geological Survey research wildlife biologist
Publication_Date: 2016
Title: Seabirds and Forage Fish Ecology Program
Geospatial_Data_Presentation_Form: website
Publication_Information:

Publication_Place: Anchorage, Alaska
Publisher: U.S. Geological Survey, Alaska Science Center

Online_Linkage: https://alaska.usgs.gov/portal/project.php?project_id=385
Online_Linkage:

https://alaska.usgs.gov/science/biology/seabirds_foragefish/foragefish/

Description:

Abstract:

This dataset contains nutrient data collected at stations within four fjords in the coastal area of the Gulf of Alaska. Sea water samples were collected with a Seabird Electronics Ecosampler SBE55 attached to a conductivity-temperature-depth profiler. Bottles were fired at the surface (0 m) and from 8 m (in Glacier Bay, AK in 2004) or 10 m (in Prince William Sound, AK in 2010 and in Icy Bay and Yakutat Bay, AK in 2011). Samples were processed for nitrite (NO2), nitrate (NO3), ammonium (NH4), phosphate (PO4), and silicic acid (SIOH4).

Purpose:

The purpose of this data was to characterize nutrient concentrations in glacial fjords on the coast of the Gulf of Alaska.

Supplemental_Information:

The overarching goal of this work was to compare and contrast the influence of glacier runoff on fjord ecosystems across the Gulf of Alaska. We sought to 1) describe the magnitude and horizontal range of influence of key near-surface physical characteristics associated with glacial runoff in coastal marine waters, and 2) characterize the distribution and response of lower- to upper-trophic level organisms relative to glacially influenced habitat gradients. This dataset is one of several types of data collected concurrently, including physical (conductivity, temperature, and depth (CTD), nutrients) and biological (zooplankton, fish and marine birds) variables from the same sampling locations (detailed in project metadata).

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2004
Ending_Date: 2011

Currentness_Reference: ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Description_of_Geographic_Extent:

Alaska- Glacier Bay (GLBA), Icy Bay (IB), Yakutat Bay (YAK), Prince William Sound (PWS)ince William Sound, Alaska

Bounding_Coordinates:

West_Bounding_Coordinate: -148.403087
East_Bounding_Coordinate: -135.9187
North_Bounding_Coordinate: 61.27932
South_Bounding_Coordinate: 58.45077

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:ASC80

Theme:

Theme_Keyword_Thesaurus: ISO Topic Category
Theme_Keyword: biota
Theme_Keyword: oceans

Theme:

Theme_Keyword_Thesaurus: USGS Biocomplexity Thesaurus
Theme_Keyword: depth
Theme_Keyword: phosphates
Theme_Keyword: nitrates
Theme_Keyword: silicic acid
Theme_Keyword: ammonium
Theme_Keyword: nitrites
Theme_Keyword: water samples

Place:

Place_Keyword_Thesaurus: Geographic Names Information System
Place_Keyword: Glacier Bay
Place_Keyword: Icy Bay
Place_Keyword: Yakutat Bay
Place_Keyword: Prince William Sound
Place_Keyword: Gulf of Alaska
Place_Keyword: Alaska

Access_Constraints: None
Use_Constraints:

It is requested that the authors and the USGS Alaska Science Center be cited for any subsequent publications that reference this dataset. It is strongly recommended that careful attention be paid to the contents of the metadata file associated with these data to evaluate data set limitations, restrictions or intended use. It is the responsibility of the user to use the data appropriately and consistent with the limitations of the data in general and these data in particular.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Mayumi Arimitsu
Contact_Organization: U.S. Geological Survey

Contact_Position: research ecologist
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

Data_Set_Credit:

Kathy Krogslund, University of Washington, processed all nutrient samples at the UW lab. Acknowledgements - This work was possible because of funding and support from U.S. Geological Survey, Ecosystems Mission Area, Environments Program, Glacier Bay National Park, and National Fish and Wildlife Foundation. L. Eisner, N. Hillgruber, G. Eckert, M. Romano, A. Allyn, D. Irons, E. Madison and B. Heflin were instrumental during the planning, data collection and processing phase. We thank Captain Greg Snedgen (USGS R/V Alaskan Gyre) and Dan Foley (F/V Steller) along with their crews. We also appreciate help in the field from J. Douglas, G. Drew, J. King, N. Naslund, L. Nussman, L. Parker, E. Piatt, J. Reum, S. Scott, and K. Weersing. Use of trade names does not constitute endorsement by the U.S. government.

Native_Data_Set_Environment:

The original data is stored as comma separated text files and is also made available in this format for dissemination.

Cross_Reference:

Citation_Information:

Originator: Mayumi Arimitsu
Originator: John Piatt
Originator: Franz Mueter
Publication_Date: 2016
Title:

Influence of glacier run off on ecosystem structure in Gulf of Alaska fjords

Geospatial_Data_Presentation_Form: journal article
Other_Citation_Details: Marine Ecology Progress Series
Online_Linkage: http://dx.doi.org/10.3354/meps11888

Analytical_Tool:

Analytical_Tool_Description:

UNESCO (1994). Protocols for the joint global ocean flux study (JGOFS) core measurements. Vol. 29.

Tool_Access_Information:

Tool_Access_Instructions: NA

Analytical_Tool:

Analytical_Tool_Description:

Valderrama (1981). The simultaneous analysis of total nitrogen and total phosphorus on natural waters. Mar.Chem (10), 109-122.

Tool_Access_Information:

Tool_Access_Instructions: NA

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

The quality of all data and metadata are reviewed by the USGS as part of its standard internal procedures for quality control and quality assurance. Processed data are reviewed for any outliers or bad data. Samples were carefully monitored and kept frozen from collection to processing. Samples were labeled and logged for data assurance. Water samples for inorganic nutrient concentration (µM) analysis were frozen in clean 60 ml HDPE sample bottles, and later processed at the University of Washington Marine Chemistry lab using established protocols (UNESCO 1994).

Logical_Consistency_Report: NA
Completeness_Report:

These data were collected in different locations and different years, the data set is complete, any variation in equipment or methods amongst years/location are noted.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Latitude and longitude coordinates were obtained from a commercially available Garmin GPS with a resolution to within ± 4 m.

Lineage:

Methodology:

Methodology_Type: Field
Methodology_Description:

Inorganic nutrients were sampled with a water sampler near the surface and at 10 m depth (or at surface and 8 m in GLBA), and oceanographic conditions were sampled with a Seabird Electronics SBE25 (GLBA) or SBE19 (PWS and IBYAK) conductivity-temperature-depth profiler (CTD) equipped with sensors to measure in situ temperature, salinity, chla (WetStar WET Labs), photosynthetically active radiation (PAR, LI-193 Spherical Quantum Sensor), and beam attenuation (C-Star WET Labs).

Methodology_Citation:

Citation_Information:

Originator:

Arimitsu, M.L., Piatt, J.F., Litzow, M.A., Abookire, A.A., Romano, M.D., Robards, M.D.

Publication_Date: 2008
Title:

Distribution and spawning dynamics of capelin (Mallotus villosus) in Glacier Bay, Alaska: a cold water refugium.

Geospatial_Data_Presentation_Form: paper: doi:10.1111/j.1365-2419.2008.00470.x
Publication_Information:

Publication_Place: Fish Oceanography
Publisher: 17, 137–146

Process_Step:

Process_Description:

Samples were processed at the Marine Chemistry Laboratory at the School of Oceanography, University of Washington, Seattle, WA. following the protocols for the joint global ocean flux study core measurements (UNESCO, 1994). For more information see http://www.ocean.washington.edu/story/Marine+Chemistry+Laboratory

Process_Date: Unknown

Spatial_Data_Organization_Information:

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: 299.257223563

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: Nutrients_GlacierEcosystems_AK_2004_2011_data.csv
Entity_Type_Definition: nutrient concentrations (uM) from water samples
Entity_Type_Definition_Source: USGS Alaska Science Center

Attribute:

Attribute_Label: station
Attribute_Definition: station reference number
Attribute_Definition_Source: USGS Alaska Science Center
Attribute_Domain_Values:

Unrepresentable_Domain: text field

Attribute:

Attribute_Label: date
Attribute_Definition: date of data collection
Attribute_Definition_Source: USGS Alaska Science Center
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 6/22/2004
Range_Domain_Maximum: 7/20/2011
Attribute_Units_of_Measure: date - mm/dd/yyyy

Attribute:

Attribute_Label: time
Attribute_Definition: time of data collection
Attribute_Definition_Source: USGS Alaska Science Center
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 00:00:01
Range_Domain_Maximum: 23:59:59
Attribute_Units_of_Measure: AK standard time - hh:mm:ss

Attribute:

Attribute_Label: latitude
Attribute_Definition: latitudinal coordinates of data collection
Attribute_Definition_Source: USGS Alaska Science Center
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 58.39271
Range_Domain_Maximum: 61.2325
Attribute_Units_of_Measure: decimal degrees

Attribute:

Attribute_Label: longitude
Attribute_Definition: longitudinal coordinates of data collection
Attribute_Definition_Source: USGS Alaska Science Center
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -135.9295
Range_Domain_Maximum: -148.39062
Attribute_Units_of_Measure: decimal degrees

Attribute:

Attribute_Label: depth
Attribute_Definition: depth sample was collected in the water column from the surface
Attribute_Definition_Source: USGS Alaska Science Center
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 200
Attribute_Units_of_Measure: depth in meters - 0 is surface sample

Attribute:

Attribute_Label: nutrient
Attribute_Definition: nutrient type
Attribute_Definition_Source: USGS Alaska Science Center
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: PO4
Enumerated_Domain_Value_Definition: phosphate - inorganic nutrient data (uM)
Enumerated_Domain_Value_Definition_Source: USGS Alaska Science Center

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: NO3
Enumerated_Domain_Value_Definition: nitrate - inorganic nutrient data (uM)
Enumerated_Domain_Value_Definition_Source: USGS Alaska Science Center

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: SIOH4
Enumerated_Domain_Value_Definition: silicic acid - inorganic nutrient data (uM)
Enumerated_Domain_Value_Definition_Source: USGS Alaska Science Center

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: NH4
Enumerated_Domain_Value_Definition: ammonium - inorganic nutrient data (uM)
Enumerated_Domain_Value_Definition_Source: USGS Alaska Science Center

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: NO2
Enumerated_Domain_Value_Definition: nitrite - inorganic nutrient data (uM)
Enumerated_Domain_Value_Definition_Source: USGS Alaska Science Center

Attribute:

Attribute_Label: uM
Attribute_Definition: Nutrient amount measured in microMolar.
Attribute_Definition_Source: USGS Alaska Science Center
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 43.06
Attribute_Units_of_Measure: uM

Overview_Description:

Entity_and_Attribute_Overview:

This data set contains date, time, and nutrient data from College Fjord, Harriman Fjord, Icy Bay, Yakutat Bay, Glacier Bay, Alaska.

Entity_and_Attribute_Detail_Citation: NA

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

Contact_Voice_Telephone: 907-786-7000
Contact_Electronic_Mail_Address: ascweb@usgs.gov

Resource_Description: Nutrients_GlacierEcosystems_AK_2004_2011_data.csv
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 (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: zip
Format_Information_Content:

Zip file containing the data in CSV file format and FGDC metadata in XML and HTML formats.

File_Decompression_Technique:

Use WinZip, pkUnzip, or other open source or commercially available unzip tool.

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: http://dx.doi.org/10.5066/F7K072DR

Fees: None

Near-surface Nutrients Data from Gulf of Alaska Fjords, 2004-2011

Metadata: