Raw Ground Penetrating Radar Data, Wolverine Glacier, Alaska

Identification_Information:

Citation:

Citation_Information:

Originator: Christopher J. McNeil (ORCID: 0000-0003-4170-0428)
Originator: Louis C. Sass (ORCID: 0000-0003-4677-029X)
Originator: Esther L. Babcock (ORCID: 0000-0001-7665-7795)
Originator: Daniel McGrath (ORCID: 0000-0002-9462-6842)
Originator: Emily H. Baker (ORCID: 0000-0002-0938-3496)
Originator: Salvatore G. Candela
Originator: Shad O'Neel (ORCID: 0000-0002-9185-0144)
Publication_Date: 201807
Title: Raw Ground Penetrating Radar Data, Wolverine Glacier, Alaska
Geospatial_Data_Presentation_Form: tabular digital data
Series_Information:

Series_Name: Raw Ground Penetrating Radar Data on North American Glaciers
Issue_Identification: ver 3.0, March 2022

Publication_Information:

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

Other_Citation_Details:

Suggested Citation: McNeil, C.J., Sass, L.C., Babcock, E.L., McGrath, D., Baker, E.H., Candela, S.G, O'Neel, S., 2018, Raw Ground Penetrating Radar Data, Wolverine Glacier, Alaska (ver 3.0, March 2022): U.S. Geological Survey data release, https://doi.org/10.5066/F7M043G7

Online_Linkage: https://doi.org/10.5066/F7M043G7
Larger_Work_Citation:

Citation_Information:

Originator: U.S. Geological Survey
Publication_Date: 2012
Title: Ground Penetrating Radar on North American Glaciers
Geospatial_Data_Presentation_Form: website
Series_Information:

Series_Name: Alaska Science Portal
Issue_Identification: 384

Publication_Information:

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

Other_Citation_Details:

This is a link to the broader USGS Alaska Science Center research project supported by these data. Users will find a description of the research project and links to associated reports, publications, and data products.

Online_Linkage: https://alaska.usgs.gov/portal/project.php?project_id=384

Description:

Abstract:

U.S. Geological Survey researchers conducted time-series ground-penetrating radar (GPR) surveys with a Sensors and Software 500-MHz Pulse Ekko Pro system. This data release contains ground-based (ski and snowmobile) as well as airborne common-offset profiles. All profiles are linked to coincident GPS observations. Additionally, common-midpoint data was collected at specific glacier locations. Coincident in-situ data may provide calibration information, and may be composed of any of the following: snow pits and/or snow-pit/snow-core combinations, probe profiles, and ablation stake data. This supplemental information provides estimates of snow properties which may be used to calibrate radar velocity.

Purpose:

We obtained data to estimate snow thickness on Alaska glaciers to complement U.S. Geological Survey research efforts including local and regional scale mass-balance modeling. The purpose of this body of work is to monitor glacier change over time and to provide insights into glacier systems.

Supplemental_Information:

Collection parameters varied within data set. Additional information regarding parameters and settings included with these data (.HD files).

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20130101
Ending_Date: 20171231

Currentness_Reference: ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: Irregular

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -149.1476
East_Bounding_Coordinate: -148.3127
North_Bounding_Coordinate: 60.8286
South_Bounding_Coordinate: 60.5057

Keywords:

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: Electromagnetic Data
Theme_Keyword: GPR
Theme_Keyword: geophysics
Theme_Keyword: Glaciology
Theme_Keyword: GPR
Theme_Keyword: ground-penetrating radar

Theme:

Theme_Keyword_Thesaurus: NASA Earth Science Thesaurus
Theme_Keyword: Cryosphere
Theme_Keyword: Glaciers/Ice Sheets
Theme_Keyword: Glaciers
Theme_Keyword: Ablation Zones/Accumulation Zones
Theme_Keyword: Spectral/Engineering
Theme_Keyword: Radar
Theme_Keyword: Radar Imagery

Theme:

Theme_Keyword_Thesaurus: USGS CSA Biocomplexity Thesaurus
Theme_Keyword: Glaciology
Theme_Keyword: Geomorphology
Theme_Keyword: Geology
Theme_Keyword: Remote Sensing

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: Glaciology
Theme_Keyword: Snow and ice cover
Theme_Keyword: Glaciation
Theme_Keyword: Metamorphism (geological)
Theme_Keyword: Geophysics
Theme_Keyword: Radar imaging

Place:

Place_Keyword_Thesaurus: USGS Geographic Names Information System (GNIS)
Place_Keyword: Alaska
Place_Keyword: Wolverine Glacier

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.

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
Country: USA

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

Data_Set_Credit:

University of Alaska Fairbanks, Alaska Division of Geological and Geophysical Surveys

Native_Data_Set_Environment:

We used pulseEKKO Pro system software and sensors for data capture. Other software, such as Python, R or Octave, is publicly available for data visualization.

Cross_Reference:

Citation_Information:

Originator: U.S. Geological Survey
Publication_Date: 2018
Title: U.S. Geological Survey Glaciers and Climate Project
Geospatial_Data_Presentation_Form: website
Publication_Information:

Publication_Place: Online
Publisher: U.S. Geological Survey

Other_Citation_Details: USGS glaciers program website
Online_Linkage:

https://www2.usgs.gov/landresources/lcs/glacierstudies/default.asp

Cross_Reference:

Citation_Information:

Originator: Shad O'Neel (ORCID: 0000-0002-9185-0144)
Originator: Daniel McGrath (ORCID: 0000-0002-9462-6842)
Originator: Gabriel J. Wolken
Originator: Erin N. Whorton (ORCID: 0000-0002-1395-3084)
Originator: Salvatore G. Candela
Originator: Louis C. Sass (ORCID: 0000-0003-4677-029X)
Originator: Christopher J. McNeil (ORCID: 0000-0003-4170-0428)
Originator: Emily H. Baker (ORCID: 0000-0002-0938-3496)
Originator: Erich H. Peitzsch (ORCID: 0000-0001-7624-0455)
Originator: Daniel B. Fagre (ORCID: 0000-0001-8552-9461)
Originator: Adam M. Clark (ORCID:0000-0002-8863-1434)
Originator: Caitlyn E. Florentine (ORCID: 0000-0002-7028-0963)
Originator: Zachary S. Miller (ORCID:0000-0002-6876-6710)
Originator: John Erich Christian
Originator: Knut Christianson
Originator: Esther L. Babcock (ORCID: 0000-0001-7665-7795)
Originator: Michael G. Loso
Originator: Anthony A. Arendt
Originator: Evan W. Burgess
Originator: Alessio Gusmeroli
Publication_Date: 201809
Title: Raw Ground Penetrating Radar Data on North American Glaciers
Geospatial_Data_Presentation_Form: collection
Series_Information:

Series_Name: Raw Ground Penetrating Radar Data on North American Glaciers
Issue_Identification: Ver 2.1, September 2018

Publication_Information:

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

Other_Citation_Details:

O'Neel, S., McGrath, D., Wolken, G. J., Whorton, E. N., Candela, S. G., Sass, L. C., McNeil, C. J., Baker, E. H., Peitzsch, E. H., Fagre, D. B., Clark, A. M., Florentine, C. E., Miller, Z. S., Christian, J. E., Christianson, K., Babcock, E. L., Loso, M. G., Arendt, A. A., Burgess, E. W., Gusmeroli, A., 2018, Ground Penetrating Radar Data on North American Glaciers, ver 2.1, September 2018: U.S. Geological Survey data release, https://doi.org/10.5066/F7M043G7.

Larger_Work_Citation:

Citation_Information:

Originator: Shad O'Neel (ORCID: 0000-0002-9185-0144)
Publication_Date: 2018
Title: Ground Penetrating Radar Data on North American Glaciers
Geospatial_Data_Presentation_Form: web site
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=384

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

We did not conduct any formal attribute accuracy tests. Quality of ground-penetrating radar data depends on signal-to-noise ratio, number of bad traces, and other data attributes. The user must assess these attributes on a case-by-case basis.

Logical_Consistency_Report:

We did not conduct any formal attribute accuracy tests. All of the profiles are linked to coincident GPS observations. Coincident in-situ data is provided for calibration, and may be composed of any of the following: snow pits and/or snow-pit/snow-core combinations, probe profiles, and ablation stakes. This supplemental information may provide snow property estimates for radar velocity calibration.

Completeness_Report:

Data set is considered complete for the information presented, as described in the abstract. We include all of the collected data even though some of the data may not be interpretable depending on intended use.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

We did not conduct any formal positional accuracy tests. Qualitatively, the positional accuracy is +/- 1 meter horizontally and +/- 3 meters vertically. Vertical GPS position for airborne data references the helicopter position not the ground surface.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Annan, A.P.
Publication_Date: 1993
Title: Practical Processing of GPR Data
Geospatial_Data_Presentation_Form: document
Series_Information:

Series_Name:

Proceedings of the Second Government Workshop on Ground Penetrating Radar

Issue_Identification: October, 1993

Publication_Information:

Publication_Place: Mississauga, Ontario Canada
Publisher: Sensors and Software Inc

Other_Citation_Details:

Annan, A.P. 1993. Practical Processing of GPR Data: Proceedings of the Second Government Workshop on Ground Penetrating Radar, October, 1993, Columbus, Ohio.

Online_Linkage:

http://www.ees.nmt.edu/outside/courses/Geop446/Docs/GPR_data_process.pdf

Type_of_Source_Media: document
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1993

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Annan 1993
Source_Contribution: Describes methods, data types, and analysis

Process_Step:

Process_Description:

We conducted ground-penetrating radar (GPR) surveys with a 500-MHz Pulse Ekko Pro sensors and software system. We collected common-offset data from the ground, towed behind a researcher using a snowmobile, and from the air, strapped underneath a helicopter. We also collected common-midpoint data at specific glacier locations. All the profiles are linked to coincident GPS observations. Coincident in-situ data may provide calibration information, and may be composed of any of the following: snow pits and/or snow-pit/snow-core combinations, probe profiles, and ablation stakes. This supplemental information may provide estimates of snow properties to calibrate radar velocity.

Process_Date: Unknown

Process_Step:

Process_Description:

Coincident in-situ data was collected for calibration and may be composed of any of the following: snow pits and/or snow-pit/snow-core combinations, probe profiles, and ablation stakes. This supplemental information provides estimates of snow properties to calibrate radar velocity.

Process_Date: Unknown

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Point

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.0000001
Longitude_Resolution: 0.0000001
Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: World Geodetic System 1984 (WGS84)
Ellipsoid_Name: World Geodetic System 1984 (WGS84)
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio: 298.257223563

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Datum_Name: World Geodetic System 1984 (WGS84)
Altitude_Resolution: 1.0
Altitude_Distance_Units: meters
Altitude_Encoding_Method:

Explicit elevation coordinate included with horizontal coordinates

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: GPR_data
Entity_Type_Definition:

Folder (with subfolders) of raw GPR data output files. GPR data are provided in DT1, GPS, HD and ASC (ASCII) formats.

GPS files contain NMEA strings.

HD files contain header information. See sensors and software manual https://www.sensoft.ca

ASC files contain trace data in ASCII format with traces in columns and samples in rows.

Text files contain in-situ glaciological data collected in a similar timeframe to the GPR data, which can assist in its interpretation.

Entity_Type_Definition_Source: Producer Defined

Detailed_Description:

Entity_Type:

Entity_Type_Label: [Glacier]_inSituSummary_[Year]_GPR_Fiducials.csv
Entity_Type_Definition:

CSV file containing information on the GPR Fiducials, manual markers taken within the GPR dataset to indicate notable on-the-ground features to aid interpretation.

Entity_Type_Definition_Source: Producer Defined

Attribute:

Attribute_Label: Date
Attribute_Definition: Date on which GPR data was collected in the field
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2013-03-14
Range_Domain_Maximum: 2020-05-13

Attribute:

Attribute_Label: Dir
Attribute_Definition:

Directory name that this section of GPR is collected in. It is a useful organizational principal, but contains no meaning beyond an organizational sub-setting of data, as occurred in the field during collection.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Unrepresentable_Domain: Directory name

Attribute:

Attribute_Label: Line
Attribute_Definition:

Line number that this section of GPR is collected in. It is a useful organizational principal, but contains no meaning beyond an organizational sub-setting of data, as occurred in the field durring collection.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 50
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: Fiducial
Attribute_Definition:

A fiducial is a marker in the GPR raw data that the collection platform allows a user to make. It can be used to mark any type of notable ground feature, including locations of other field equipment, in-situ measurements, or simply notable ground features such as wind scour of snow or presence of notable crevassing. Meaning is indicated in the 'Comment' column.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Unrepresentable_Domain: Fiducial marker

Attribute:

Attribute_Label: Snow_Depth_cm
Attribute_Definition:

Depth of snow as measured in centimeters. Blank cells indicate that snow depth not measured at this fiducial point

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 1141

Attribute:

Attribute_Label: Comment
Attribute_Definition: Description of the fiducial marker
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Unrepresentable_Domain: Description of the fiducial marker

Detailed_Description:

Entity_Type:

Entity_Type_Label: [Glacier]_inSituSummary_[Year]_ProbedSnowDepth.csv
Entity_Type_Definition:

CSV file containing probed snow depth data at specific long-term monitoring sites across the glacier.

Entity_Type_Definition_Source: Producer Defined

Attribute:

Attribute_Label: type
Attribute_Definition:

Indicates how snow depth measurement was made. Primarily probed snow depth measurements, made using a snow depth probe, but occasionally may contain additional information on snow depth obtained via snow coring devices or snow pits.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Probe
Enumerated_Domain_Value_Definition: Depth measured via snow probe
Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Pit
Enumerated_Domain_Value_Definition: Depth measured via dug snow pit
Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Core
Enumerated_Domain_Value_Definition: Depth measured via snow coring device
Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute:

Attribute_Label: depth
Attribute_Definition:

Depth of snowpack in centimeters, from surface of snow to the previous summer's melt surface

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 1172
Attribute_Units_of_Measure: Centimeters
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: YMD
Attribute_Definition: Date of measurement
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 20200512
Range_Domain_Maximum: 20130416
Attribute_Units_of_Measure: Date (YYYYMMDD)
Attribute_Measurement_Resolution: 1

Attribute:

Attribute_Label: site
Attribute_Definition:

Long-term monitoring site at which the snow depth was measured. The latitude and longitude of this site is given in the [Glacier]_site_locations.csv associated with this data release. Corresponds to the 'Site' attribute in all tables included with this data package.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Unrepresentable_Domain: Long-term monitoring site identifier

Attribute:

Attribute_Label: comments
Attribute_Definition:

Comments to clarify any additional information regarding the snow depth measurement

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Comments to clarify any additional information regarding the snow depth measurement

Detailed_Description:

Entity_Type:

Entity_Type_Label: [Glacier]_inSituSummary_[YEAR]_SnowDepthAndDensity.csv
Entity_Type_Definition:

Comma Separated Value (CSV) file containing summary snow depth and density data.

Entity_Type_Definition_Source: Producer Defined

Attribute:

Attribute_Label: Site
Attribute_Definition:

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Unrepresentable_Domain: Long-term monitoring site identifier

Attribute:

Attribute_Label: Date_MDY
Attribute_Definition: Date on which depth and/or density measurement was taken
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 03/14/2013
Range_Domain_Maximum: 05/12/2020
Attribute_Units_of_Measure: Date (YYYYMMDD)

Attribute:

Attribute_Label: Type
Attribute_Definition:

Measurement method for snow depth. Primarily information from snow pits and snow cores, but occasionally contains additional information on snow depth obtained via probing.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Unrepresentable_Domain: Measurement method for snow depth

Attribute:

Attribute_Label: Observed_Snow_Depth_m
Attribute_Definition: Measured snow depth, via method indicated in 'Type' column.
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.35
Range_Domain_Maximum: 5.33
Attribute_Units_of_Measure: Meters

Attribute:

Attribute_Label: Bulk_Density_g_cm3
Attribute_Definition:

Measured density at the long-term monitoring site indicated in column 'Site'

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.38
Range_Domain_Maximum: 0.36
Attribute_Units_of_Measure: Grams per cubic centimeter
Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: Index_Name
Attribute_Definition:

Name of index site stake along which snow depth was measured. The 'Site' column indicates a fixed x/y point in space, and is given an arbitrary label. This column 'Index_Name' denotes the physical ablation stake along which snow depth was measured. Each year a new stake is installed at this site, and flows down the glacier with the ice movement, changing its x/y location in space. The stake is named according to the year it was installed, e.g. '20Y' would indicate a stake that was installed in 2020 at site Y.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Unrepresentable_Domain: Name of index site stake

Attribute:

Attribute_Label: Comments
Attribute_Definition:

Any additional comments relevant to the bulk density or snow depth measurements indicated

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Unrepresentable_Domain: Additional comments

Detailed_Description:

Entity_Type:

Entity_Type_Label: [Glacier]_site_locations.csv
Entity_Type_Definition:

Comma Separated Value (CSV) file containing the geographical coordinates of the long-term monitoring site at which the snow depth was measured.

Entity_Type_Definition_Source: Producer Defined

Attribute:

Attribute_Label: Site
Attribute_Definition:

Long-term monitoring site at which the snow depth was measured. Corresponds to the 'Site' attribute in all tables included with this data package.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Unrepresentable_Domain: Long-term monitoring site identifier

Attribute:

Attribute_Label: latitude
Attribute_Definition: Latitude of the long-term monitoring site
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 60.372743
Range_Domain_Maximum: 60.427056
Attribute_Units_of_Measure: Decimal degrees (WGS84)

Attribute:

Attribute_Label: Longitude
Attribute_Definition: Longitude of the long-term monitoring site
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -148.937049
Range_Domain_Maximum: -148.876417
Attribute_Units_of_Measure: Decimal degrees (WGS84)

Detailed_Description:

Entity_Type:

Entity_Type_Label: [Glacier]_[Year]_SummaryMap
Entity_Type_Definition:

Map showing the GPR sampling effort. Presented in a PDF document.

Entity_Type_Definition_Source: Producer Defined

Overview_Description:

Entity_and_Attribute_Overview:

This GPR data package provides: a summary map showing the route followed during GPR sampling, a table of long-term snow depth monitoring site, and two folders of data. The two folders are: raw GPR data output files (in DT1, GPS, HD, ASC formats), and 2) three CSV formatted tables providing contextual "in situ" information for interpreting the GPR data.

Entity_and_Attribute_Detail_Citation: Producer 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, ASCII, PDF
Format_Information_Content:

Data are distributed in a Zip package containing: GPR data as DT1, GPS, HD and ASC (ASCII) formats; in situ data in CSV format; a summary map in PDF format; and FGDC metadata in XML and HTML formats.

File_Decompression_Technique:

Compression applied by the 7-Zip utility using the default compression level [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/F7M043G7

Fees: None

Technical_Prerequisites:

Proprietary files are hosted here for compactness, but can be viewed and processed using a number of freely available applications. These include Matlab GPR, available at http://users.uoa.gr/~atzanis/matgpr/matgpr.html and GPRSoft viewer, available at https://www.geoscanners.com/gprsoft.html. Python, R, Octave, or other publicly available data software can be used to display the data visually.

Raw Ground Penetrating Radar Data, Wolverine Glacier, Alaska

Metadata: