Entry_ID: G00790
Entry_Title: Polar Ice Sounding and Geomagnetics
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Atmospheric Temperature
   Variable_Level_1: Air Temperature
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Atmosphere
   Term: Atmospheric Water Vapor
   Variable_Level_1: Condensation
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Glaciers/Ice Sheets
   Variable_Level_1: Glaciers
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Glaciers/Ice Sheets
   Variable_Level_1: Glacier Thickness/Ice Sheet Thickness
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Glaciers/Ice Sheets
   Variable_Level_1: Glacier Topography/Ice Sheet Topography
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Glaciers/Ice Sheets
   Variable_Level_1: Ice Sheets
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Snow/Ice
   Variable_Level_1: Ice Depth/Thickness
   Detailed_Variable: Ice Thickness
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Land Surface
   Term: Topography
   Variable_Level_1: Terrain Elevation
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Solid Earth
   Term: Geomagnetism
   Variable_Level_1: Magnetic Field
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Solid Earth
   Term: Geomagnetism
   Variable_Level_1: Reference Fields
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Glaciers/Ice Sheets
   Variable_Level_1: Glaciers
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Glaciers/Ice Sheets
   Variable_Level_1: Glacier Thickness/Ice Sheet Thickness
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Glaciers/Ice Sheets
   Variable_Level_1: Glacier Topography/Ice Sheet Topography
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Glaciers/Ice Sheets
   Variable_Level_1: Ice Sheets
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Snow/Ice
   Variable_Level_1: Ice Depth/Thickness
   Detailed_Variable: Ice Thickness
End_Group
Keyword: Bedrock Topography
Keyword: Geomagnetics
Keyword: Greenland
Keyword: Ice Soundings
Keyword: Ice Stratigraphy
Keyword: Ice Thickness
Keyword: IDN_NODE GSFC/NSIDC
Keyword: Radar Echo Sounding
Keyword: Scalar (proton) Magnetometer
Sensor_Name: MAGNETOMETERS
Sensor_Name: RADAR ECHO SOUNDERS
Source_Name: AIRCRAFT
Group: Temporal_Coverage
   Start_Date: 1977-11-01
   Stop_Date: 1979-02-01
End_Group
Group: Spatial_Coverage
   Southernmost_Latitude: 60
   Northernmost_Latitude: 85
   Westernmost_Longitude: -72
   Easternmost_Longitude: -18
End_Group
Group: Spatial_Coverage
   Southernmost_Latitude: -90
   Northernmost_Latitude: -60
   Westernmost_Longitude: -180
   Easternmost_Longitude: 180
End_Group
Group: Location
   Location_Category: CONTINENT
   Location_Type: ANTARCTICA
End_Group
Group: Location
   Location_Category: CONTINENT
   Location_Type: NORTH AMERICA
   Location_Subregion1: GREENLAND
End_Group
Data_Set_Language: English
Originating_Center: NSIDC
Group: Data_Center
   Data_Center_Name: NSIDC > National Snow and Ice Data Center
   Data_Center_URL: http://nsidc.org
   Group: Personnel
      Role: Data Center Contact
      First_Name: NSIDC
      Last_Name: User Services
      Email: nsidc@nsidc.org
      Phone: 1 303 492-6199 
      Fax: 1 303  492-2468 
      Group: Contact_Address
         Address: National Snow and Ice Data Center
         Address: CIRES, 449 UCB
         Address: University of Colorado
         City: Boulder
         Province_or_State: CO
         Postal_Code: 80309-0449
         Country: USA
      End_Group
   End_Group
End_Group
Group: Data_Center
   Data_Center_Name: NOAA > National Oceanic and Atmospheric Administration
   Data_Center_URL: http://nsidc.org/noaa/
   Group: Personnel
      Role: Data Center Contact
      First_Name: NOAA
      Last_Name: User Services
      Email: nsidc@nsidc.org
      Phone: 1 303 492-6199 x
      Fax: 1 303  492-2468 x
      Group: Contact_Address
         Address: National Snow and Ice Data Center
         Address: CIRES, 449 UCB
         Address: University of Colorado
         City: Boulder
         Province_or_State: CO
         Postal_Code: 80309-0449
         Country: USA
      End_Group
   End_Group
End_Group
Group: 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)

End_Group
Group: 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.

End_Group
IDN_Node: USA/NOAA
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 2004-03-17
Last_DIF_Revision_Date: 2004-03-17
DIF_Revision_History: