GPR and GPS Data: Characteristics of Snow Megadunes and their Potential Effects on Ice Core Interpretation  View Catalog Page
Metadata Entity Set Information:
Language:
eng; usa
Character Set:
Value: UTF8
CodeList: MD_CharacterSetCode
Hierarchy Level:
Value: dataset
CodeList: MD_ScopeCode
Hierarchy Level Name:
GPR and GPS Data: Characteristics of Snow Megadunes and their Potential Effects on Ice Core Interpretation
Contact:
Responsible Party:
Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199 x
Contact Address:
Delivery Point: CIRES, 449 UCB
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org
Contact Role:
Value: pointOfContact
CodeList: CI_RoleCode
Date Stamp:
2013-05-19
Metadata Standard Name:
ISO 19115 Geographic Information - Metadata First Edition
Metadata Standard Version:
ISO 19115:2003
Dataset URI:
http://nsidc.org/data/nsidc-0282.html
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Data Identification Information:
Citation:
Citation Information:
Title: GPR and GPS Data: Characteristics of Snow Megadunes and their Potential Effects on Ice Core Interpretation
Date:
Date: 2006
Date Type:
Value: publication
CodeList: CI_DateTypeCode
Edition Date: 2006-06-10
Identifier: NSIDC-0282
Identifier: http://dx.doi.org/10.7265/N5Q23X5F
Cited Responsible Party: Responsible Party:
Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org
Contact Role:
Value: custodian
CodeList: CI_RoleCode
Responsible Party:
Individual Name: NSIDC AGDC User Services
Organization Name: NSIDC Antarctic Glaciological Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org/agdc/
Contact Role:
Value: custodian
CodeList: CI_RoleCode
Responsible Party:
Individual Name: NSIDC USADCC User Services
Organization Name: NSIDC U.S. Antarctic Data Coordination Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org/usadcc/
Contact Role:
Value: custodian
CodeList: CI_RoleCode
Abstract:
The Antarctic megadune research was conducted during two field seasons, one in November 2002 and the other in December 2003 through January 2004. The megadune field site is located on the East Antarctic Plateau, southeast of Vostok station. The objectives of this multi-facetted research are to determine the physical characteristics of the firn across the dunes including typical climate indicators such as stable isotopes and major chemical species and to install instruments to measure the time variation of near-surface wind and temperature with depth, to test and refine hypotheses for megadune formation. It is important to improve our current understanding of the megadunes because of their extreme nature, their broad extent, and their potential impact on the climate record. Megadunes are a manifestation of an extreme terrestrial climate and may provide insight on past terrestrial climate or on processes active on other planets.
Snow megadunes are undulating variations in accumulation and surface texture with wavelengths of 2 to 5 km and amplitudes up to 5 meters. The features cover 500,000 km<sup>2</sup> of the East Antarctic plateau, occurring in areas of moderate regional slope and low accumulation on the flanks of the ice sheet between 2500 and 3800 meters elevation. Landsat images and aerial photography indicate the dunes consist of alternating surfaces of glaze and rough sastrugi, with gradational boundaries. This pattern is oriented perpendicular to the mean wind direction, as modeled in katabatic wind studies. Glaze surfaces cover the leeward faces and troughs; rough sastrugi cover the windward faces and crests. The megadune pattern is crossed by smooth to eroded wind-parallel longitudinal dunes. Wind-eroded longitudinal dunes form spectacular 1-meter-high sastrugi in nearby areas.
This data set contains ground penetrating radar (GPR) data showing surface morphology and internal layering structure along with global positioning system (GPS) data collected within an area of 60 km<sup>2</sup>. GPS data are provided in space-delimited ASCII text Microsoft Excel formats, while GPR data are in JPEG format. Data are available via FTP.
Purpose:
Scientific Research
Credit:
The following example shows how to cite the use of this data set in a publication. For more information, see our Use and Copyright Web page.
Ted Scambos. 2006. GPR and GPS Data: Characteristics of Snow Megadunes and their Potential Effects on Ice Core Interpretation. [indicate subset used]. Boulder, Colorado USA: National Snow and Ice Data Center. http://dx.doi.org/10.7265/N5Q23X5F.
Status:
Value: complete
CodeList: MD_ProgressCode
Point of Contact:
Responsible Party:
Individual Name: Ted Scambos
Organization Name: University of Colorado
Contact:
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: scambos@nsidc.org
Contact Role:
Value: principalInvestigator
CodeList: CI_RoleCode
Responsible Party:
Individual Name: Rob Bauer
Organization Name: University of Colorado
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492 2378
Contact Address:
Delivery Point: University of Colorado
City: Boulder
Administrative Area: CO
Postal Code: 80309
Country: USA
Email: bauerr@kryos.colorado.edu
Contact Role:
Value: principalInvestigator
CodeList: CI_RoleCode
Responsible Party:
Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199 x
Contact Address:
Delivery Point: CIRES, 449 UCB
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Role:
Value: pointOfContact
CodeList: CI_RoleCode
Maintenance Information:
Maintenance and Update Frequency:
Value: asNeeded
CodeList: MD_MaintenanceFrequencyCode
Update Scope:
Value: dataset
CodeList: MD_ScopeCode
Value: series
CodeList: MD_ScopeCode
Value: attribute
CodeList: MD_ScopeCode
Contact:
Responsible Party:
Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199 x
Contact Address:
Delivery Point: CIRES, 449 UCB
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org
Contact Role:
Value: pointOfContact
CodeList: CI_RoleCode
Descriptive Keywords:
Keywords
Keyword: Continent > Antarctica > East Antarctic Plateau
Keyword Type:
Value: place
CodeList: MD_KeywordTypeCode
Keyword Thesaurus: Citation Information:
Title: NASA / GCMD Location Keywords
Date:
Date: 2008-02-05
Date Type:
Value: revision
CodeList: CI_DateTypeCode
Keywords
Keyword: EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Firn
Keyword: EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Ice Sheets
Keyword: EARTH SCIENCE > Cryosphere > Snow/Ice > Snow Stratigraphy > Internal Layering
Keyword: EARTH SCIENCE > Land Surface > Geomorphology > Glacial Landforms/Processes
Keyword: EARTH SCIENCE > Terrestrial Hydrosphere > Snow/Ice > Snow Stratigraphy
Keyword Type:
Value: discipline
CodeList: MD_KeywordTypeCode
Keyword Thesaurus: Citation Information:
Title: NASA / GCMD Science Keywords
Date:
Date: 2008-02-05
Date Type:
Value: revision
CodeList: CI_DateTypeCode
Keywords
Keyword Type:
Value: theme
CodeList: MD_KeywordTypeCode
Keyword Thesaurus: Citation Information:
Title: None
Date:
Date: 2008-01-24
Date Type:
Value: revision
CodeList: CI_DateTypeCode
Keywords
Keyword: AGDC
Keyword: Antarctica
Keyword: East Antarctic Plateau
Keyword: Glaciology
Keyword: GPS
Keyword: GPS data
Keyword: internal layering
Keyword: Megadunes
Keyword: Paleoenvironments
Keyword: Radar
Keyword: Surface Morphology
Keyword: Surface Winds
Keyword Type:
Value: theme
CodeList: MD_KeywordTypeCode
Dataset Constraints:
Legal Constraints:
Access Constraints:
Value: otherRestrictions
CodeList: MD_RestrictionCode
Use Constraints:
Value: otherRestrictions
CodeList: MD_RestrictionCode
Other Constraints:
Access Constraints : none
Use Constraints : none
Language:
eng; usa
Character Set:
Value: UTF8
CodeList: MD_CharacterSetCode
Topic Category:
Value: climatologyMeteorologyAtmosphere
CodeList: MD_topicCategoryCode
Extent Information:
Spatial Temporal Extent:
Geographic Element:
Bounding Coordinates:
Westbound Longitude: 124.0218
Eastbound Longitude: 126.0302
Southbound Latitude: -80.7802
Northbound Latitude: -80.5304
Temporal Element:
Time Period:
Begin Position: 20021205
End Position: 20040107
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Distribution Information:
Distributor Information:
Distributor Contact:
Responsible Party:
Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org
Contact Role:
Value: custodian
CodeList: CI_RoleCode
Responsible Party:
Individual Name: NSIDC AGDC User Services
Organization Name: NSIDC Antarctic Glaciological Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org/agdc/
Contact Role:
Value: custodian
CodeList: CI_RoleCode
Responsible Party:
Individual Name: NSIDC USADCC User Services
Organization Name: NSIDC U.S. Antarctic Data Coordination Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org/usadcc/
Contact Role:
Value: custodian
CodeList: CI_RoleCode
Distribution Format(s):
Data File Format:
Name: JPEG
Specification: FTP 0.17 - 15.7 MB
Data File Format:
Name: ASCII Text
Specification: FTP 28.5 KB
Data File Format:
Name: Microsoft Excel
Specification: FTP 89.5 KB
Digital Transfer Options:
Online Transfer Options:
Online Resources:
Linkage: ftp://sidads.colorado.edu/pub/DATASETS/AGDC/scambos_nsidc_0282
Description: Data Access URL
Function:
Value: download
CodeList: CI_OnLineFunctionCode
Linkage: http://nsidc.org/data/docs/agdc/nsidc0282_scambos/index.html
Description: Documentation URL
Function:
Value: information
CodeList: CI_OnLineFunctionCode
Offline Transfer Options:
Offline Resources:
Name:
Value: onLine
CodeList: MD_MediumNameCode
Density: 0.17
Density Units: MB
Medium Name: FTP
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Data Acquisition Information:
Instrument Information:
Instrument:
Name: GPR > Ground Penetrating Radar
Type: sensor
Instrument:
Name: GPS > Global Positioning System
Type: sensor
Platform Information:
Platform:
Name: GPS > Global Positioning System Satellites
Description: satellite
Instrument: N/A
Platform:
Name: GROUND-BASED OBSERVATIONS
Description: satellite
Instrument: N/A
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