Polar Ice Sounding and Geomagnetics

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Entry ID

G00790

Summary

Data addresses ice thickness and related geomagnetics generated during remote sensing flights over Antarctica and Greenland. Digital records include date, time and geographic position for correlation with analog ice sounding data. Digital records also include temperature, pressure, water vapor and, for several flights during November and December 1978, ozone sampling. Most flights included scalar magnetometer records, uncompensated for airframe magnetic effects. Errors of 30-40 gammas may exist. Digital vector magnetometer data are not intended as survey data. Antarctic data cover 25,000 km for 1977 to 1978 and 26,000 km for 1978 to 1979. Greenland data cover 18,000 km for 1978 and 19,000 km for 1979. Analog records are oscilloscope traces and snapshots of Z-mode radar echo sounding data. Originally recorded on paper strip charts, these 16 mm microfilmed records include timing marks from the Airborne Research Data System (ARDS) clock and ice sounding identification numbers (CBD) for correlation with the digital ARDS data.

Technical University of Denmark echo sounding flights in 1971/72, 1974, 1978 and 1979 produced data for Greenland that are also archived at NSIDC. Data are published tables of latitude/longitude, and surface and bedrock elevation for each data point, and microfiche copies of the strip charts with frame numbers for correlation with the published tables (digital version of these Danish data have not been provided to NSIDC for archiving). Digital data were used to produce Antarctica: Glaciological and Geophysical Folio, (Drewry 1983). On-site use of the microfilm records can be arranged by appointment.

Geographic Coverage

 

Spatial Coordinates:
N: 85°     S: 60°     E: -18°     W: -72°    
N: -60°     S: -90°     E: 180°     W: -180°    

Temporal Coverage

Start Date: 1977-11-01
Stop Date: 1979-02-01

Location Keywords

  • CONTINENT ANTARCTICA
  • CONTINENT NORTH AMERICA GREENLAND

Science Keywords

  • Atmosphere Atmospheric Temperature Air Temperature
  • Atmosphere Atmospheric Water Vapor Condensation
  • Cryosphere Glaciers/Ice Sheets Glaciers
  • Cryosphere Glaciers/Ice Sheets Glacier Thickness/Ice Sheet Thickness
  • Cryosphere Glaciers/Ice Sheets Glacier Topography/Ice Sheet Topography
  • Cryosphere Glaciers/Ice Sheets Ice Sheets
  • Cryosphere Snow/Ice Ice Depth/Thickness Ice Thickness
  • Land Surface Topography Terrain Elevation
  • Solid Earth Geomagnetism Magnetic Field
  • Solid Earth Geomagnetism Reference Fields
  • Terrestrial Hydrosphere Glaciers/Ice Sheets Glaciers
  • Terrestrial Hydrosphere Glaciers/Ice Sheets Glacier Thickness/Ice Sheet Thickness
  • Terrestrial Hydrosphere Glaciers/Ice Sheets Glacier Topography/Ice Sheet Topography
  • Terrestrial Hydrosphere Glaciers/Ice Sheets Ice Sheets
  • Terrestrial Hydrosphere Snow/Ice Ice Depth/Thickness Ice Thickness

Ancillary Keywords

  • Bedrock Topography
  • Geomagnetics
  • Greenland
  • Ice Soundings
  • Ice Stratigraphy
  • Ice Thickness
  • IDN_NODE GSFC/NSIDC
  • Radar Echo Sounding
  • Scalar (proton) Magnetometer

Platform

  • AIRCRAFT

Instrument

  • MAGNETOMETERS
  • RADAR ECHO SOUNDERS

Originating Center

NSIDC

Data Center

National Snow and Ice Data Center
Data Center URL: http://nsidc.org

Data Center Personnel

Name: NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@nsidc.org
Contact Address:

  • National Snow and Ice Data Center
  • CIRES, 449 UCB
  • University of Colorado

City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA

National Oceanic and Atmospheric Administration
Data Center URL: http://nsidc.org/noaa/

Data Center Personnel

Name: NOAA User Services
Phone: 1 303 492-6199 x
Fax: 1 303 492-2468 x
Email: nsidc@nsidc.org
Contact Address:

  • National Snow and Ice Data Center
  • CIRES, 449 UCB
  • University of Colorado

City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA

Reference

Drewry, D.J., ed., Antarctica: Glaciological and Geophysical Folio, Cambridge, UK, Scott Polar Research Institute, 1983.

Gudmandsen, P., Studies of ice by means of radio echo sounding, Technical University of Denmark, Electromagnetics Institute, Report 162, 22 p., 1976.

Schoenhals, S. and R. Hutchins, Airborne Research Data System operations manual, Applied Physics Laboratory, The Johns Hopkins University, 1979.

Scott Polar Research Institute, NSF-SPRI-TUD Radio Echo Sounding Programme 1977-78, Guide to Film Interpretation, Cambridge, UK, Scott Polar Research Institute, 7p., (unpublished)

Metadata Name and Version

Metadata Name: CEOS IDN DIF
Metadata Version: 9.7

Creation and Review Dates

DIF Creation Date: 2004-03-17
Last DIF Revision Date: 2014-09-23

Metadata Views

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International Organization for Standardization (ISO) 19115:2003 Geographic Information Metadata

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