Entry_ID: NSIDC-0082
Entry_Title: Radarsat Antarctic Mapping Project Digital Elevation Model Version 2
Group: Data_Set_Citation
   Dataset_Creator: Liu, H., K. Jezek, B. Li, and Z. Zhao
   Dataset_Title: Radarsat Antarctic Mapping Project Digital Elevation Model Version 2
   Dataset_Release_Date: 2001-10-01
   Dataset_Release_Place: Boulder, Colorado USA
   Dataset_Publisher: NSIDC: National Snow and Ice Data Center
   Online_Resource: http://nsidc.org/data/nsidc-0082.html
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Hongxing
   Last_Name: Liu
   Group: Contact_Address
      Address: Department of Geography
      Address: Texas A&M University
      Address: College Station, TX
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Kenneth
   Middle_Name: C.
   Last_Name: Jezek
   Group: Contact_Address
      Address: Department of Geological Sciences
      Address: and Byrd Polar Research Center
      Address: The Ohio State University
      City: Columbus
      Province_or_State: OH
      Postal_Code: 43210
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Biyan
   Last_Name: Li
   Group: Contact_Address
      Address: The Byrd Polar Research Center
      Address: The Ohio State University
      Address: Columbus, OH
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Zhiyuan
   Last_Name: Zhao
   Group: Contact_Address
      Address: The Byrd Polar Research Center
      Address: The Ohio State University
      Address: Columbus, OH
   End_Group
End_Group
Group: Personnel
   Role: Technical Contact
   First_Name: NSIDC
   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
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Glaciers/Ice Sheets
   Variable_Level_1: Glacier Elevation/Ice Sheet Elevation
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 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: Land Surface
   Term: Topography
   Variable_Level_1: Contours
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Land Surface
   Term: Topography
   Variable_Level_1: Landforms
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Land Surface
   Term: Topography
   Variable_Level_1: Topographical Relief
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Glaciers/Ice Sheets
   Variable_Level_1: Glacier Elevation/Ice Sheet Elevation
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 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
Keyword: Aircraft
Keyword: Altimetry
Keyword: Antarctic
Keyword: Antarctica
Keyword: Cartography
Keyword: Contours
Keyword: Cryosphere
Keyword: DAAC
Keyword: Dem
Keyword: digital elevation models
Keyword: EOSDIS
Keyword: ERS-1
Keyword: GIS error detection
Keyword: glaciers
Keyword: Goddard Space Flight Center
Keyword: GPS data
Keyword: Hydrosphere
Keyword: Ice Sheet Elevation
Keyword: ice sheets
Keyword: Islands
Keyword: LANDFORMS
Keyword: Mapping
Keyword: mountains
Keyword: NASA
Keyword: NSIDC
Keyword: NSIDC-0082
Keyword: Radar Altimetry
Keyword: Radar Echo Sounders
Keyword: RADARSAT-1
Keyword: Radarsat Antarctic mapping project
Keyword: RAMP
Keyword: Relief
Keyword: Satellite Radar Data
Keyword: Terrain Elevation
Keyword: Topographic Maps
Keyword: Topography
Keyword: updated
Keyword: Version 2
Sensor_Name: GPS > Global Positioning System
Sensor_Name: GPS RECEIVERS
Sensor_Name: RADAR ALTIMETERS
Source_Name: AIRCRAFT
Source_Name: DEM > Digital Elevation Model
Source_Name: ERS-1 > European Remote Sensing Satellite-1
Source_Name: GROUND-BASED OBSERVATIONS
Source_Name: GROUND STATIONS
Source_Name: MAPS
Group: Temporal_Coverage
   Start_Date: 1940-01-01
   Stop_Date: 1999-01-01
End_Group
Data_Set_Progress: complete
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: GEOGRAPHIC REGION
   Location_Type: POLAR
End_Group
Project: RAMP > Radarsat Antarctic Mapping Project
Group: Quality

   The vertical accuracy of the DEM is estimated at about 100-130 m over the 
   rugged mountainous areas, better than 2 m for the ice shelves, better than 15m 
   for the interior ice sheet and about 35 m for the steeper ice sheet perimeter.

End_Group
Data_Set_Language: English
Originating_Center: OH-STATE/BPRC
Group: Data_Center
   Data_Center_Name: NASA DAAC > NASA DAAC at the National Snow and Ice Data Center
   Data_Center_URL: http://nsidc.org/daac/index.html
   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: 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: Distribution
   Distribution_Media: FTP
   Distribution_Size: 114 MB
   Distribution_Format: ArcGIS
End_Group
Group: Distribution
   Distribution_Media: FTP
   Distribution_Size: 1410 MB
   Distribution_Format: Binary
End_Group
Group: Distribution
   Distribution_Media: FTP
   Distribution_Size: 25 MB
   Distribution_Format: ArcGIS
End_Group
Group: Distribution
   Distribution_Media: FTP
   Distribution_Size: 330 MB
   Distribution_Format: ArcGIS
End_Group
Group: Distribution
   Distribution_Media: FTP
   Distribution_Size: 352 MB
   Distribution_Format: Binary
End_Group
Group: Distribution
   Distribution_Media: FTP
   Distribution_Size: 56 MB
   Distribution_Format: Binary
End_Group
Group: Distribution
   Distribution_Media: FTP
   Distribution_Size: 2649 MB
   Distribution_Format: ASCII Text (.txt)
End_Group
Group: Distribution
   Distribution_Media: FTP
   Distribution_Size: 424 MB
   Distribution_Format: ASCII Text (.txt)
End_Group
Group: Reference

   Bliss, N.B., L.M. Olsen. 1996.  Development of a 30-arc-second digital 
   elevation model of South America. Paper presented at Pecora Thirteen Human 
   Interactions with the Environment - Perspective from Space, Sioux Falls, South 
   Dakota, August 20-22.

   Brenner, A.C., R.A. Bindschadler, R.H. Thomas, H.J. Zwally. 1983. 
   Slope-induced errors in radar altimetry over continental ice sheets. Journal 
   of Geophysical Research 88:1617-1623.

   Davis C.H., H.J. Zwally. 1993.  Geographic and seasonal variations in the 
   surface properties of the ice sheets by satellite radar altimetry. Journal of 
   Glaciology 39:687-697.

   ESRI. 1991. ARC/INFO User's Guide: Cell-based modeling with GRID. ESRI Inc.

   Gesch, D.B., K.S. Larson. 1996.  Techniques for development of global 
   1-kilometer digital elevation models. Paper presented at Pecora Thirteen Human 
   Interactions with the Environment - Perspective from Space, Sioux Falls, South 
   Dakota, August 20-22.

   Hutchinson, M.F. 1989.  A new procedure for gridding elevation and stream line 
   data with automatic removal of spurious pits.  Journal of Hydrology 
   106:211-232.   Hutchinson, M.F. 1988.  Calculation of hydrologically sound 
   digital elevation models. In Proceedings of Third International Symposium on 
   Spatial Data Handling: 117-133.  Sydney, Australia.

   Jezek, K.C., H. Liu, Z. Zhao, B. Li. Improving a digital elevation model of 
   Antarctica using radar remote sensing data and GIS techniques.  Polar 
   Geography 23: 185-200.

   Liu, H., K. Jezek, B. Li. 1999.  Development of an Antarctic digital elevation 
   model by integrating cartographic and remotely sensed data: A geographic 
   information system based approach.  Journal of Geophysical Research 104: 
   23,199-23,213.

   Liu, H. 1999. Development of an Antarctic digital elevation model. Byrd Polar 
   Research Center Report No. 19, 157 pp.

   Zwally, H.J., R.A. Bindschadler, A.C. Brenner, T.V. Martin, R.H. Thomas. 1983. 
    Surface elevation contours of Greenland and Antarctic ice sheets. Journal of 
   Geophysical Research 88(C3):1589-1596.

End_Group
Group: Summary

   The high-resolution Radarsat Antarctic Mapping Project (RAMP) Digital 
   Elevation Model (DEM) combines topographic data from a variety of sources to 
   provide consistent coverage of all of Antarctica. Version 2 improves upon the 
   original version by incorporating new topographic data, error corrections, 
   extended coverage, and other modifications.

   The DEM incorporates topographic data from satellite radar altimetry, airborne 
   radar surveys, the recently-updated Antarctic Digital Database (version 2), 
   and large-scale topographic maps from the U.S. Geological Survey (USGS) and 
   the Australian Antarctic Division. Data were collected between the 1940s and 
   present, with most collected during the 1980s and 1990s. Although the RAMP DEM 
   was created to aid in processing RAMP radar data, it does not utilize any RAMP 
   radar data.

   The 1 km, 400 m, and 200 m DEM data are provided in ARC/INFO and binary grid 
   formats, and the 1 km and 400 m DEMs are also available in ASCII format. Data 
   access is unrestricted, but users should register to receive e-mail 
   notification of product updates and changes in processing.

End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/daac/ramp/index.html
   Description: The Radarsat Antarctic Mapping Project (RAMP)
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/ramp/
   Description: The Radarsat Antarctic Mapping Project (RAMP)
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW RELATED INFORMATION
   End_Group
   URL: http://nsidc.org/data/atlas/
   Description: Atlas of the Cryosphere
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW RELATED INFORMATION
   End_Group
   URL: http://nsidc.org/data/dems/index.html
   Description: Polar Ice Sheet DEMs and Elevation Data
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW RELATED INFORMATION
   End_Group
   URL: http://nsidc.org/data/dems/
   Description: Polar Ice Sheet DEMs and Topographic Data at NSIDC
End_Group
IDN_Node: USA/NASA
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 2001-10-01
Last_DIF_Revision_Date: 2013-10-02
DIF_Revision_History: Updated data access links for Search.