Entry_ID: NSIDC-0274
Entry_Title: Compilation of Antarctic Radar Data, Siple Coast, 2000-2002
Group: Data_Set_Citation
   Dataset_Creator: Howard Conway
   Dataset_Title: Compilation of Antarctic Radar Data, Siple Coast, 2000-2002
   Dataset_Release_Date: 2005-12-15
   Dataset_Release_Place: Boulder, Colorado USA
   Dataset_Publisher: NSIDC: National Snow and Ice Data Center
   Online_Resource: http://nsidc.org/data/nsidc-0274.html
   Dataset DOI: http://dx.doi.org/10.7265/N5736NTS
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Charles
   Last_Name: Raymond
   Group: Contact_Address
      Address: University of Washington
      Address: University of Washington
      Address: Geophysics Program Box 351650
      City: Seattle
      Province_or_State: WA
      Postal_Code: 98195
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Howard
   Last_Name: Conway
   Email: conway@ess.washington.edu
   Phone: 1 206 543-1190 
   Group: Contact_Address
      Address: University of Washington
      Address: Department of Earth and Space Sciences
      Address: Department of Earth and Space Sciences
      Address: University of Washington
      Address: 63 Johnson Hall, Box 351310
      City:  Seattle
      Province_or_State: WA
      Postal_Code: 98195-1310
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Ginny
   Last_Name: Catania
   Group: Contact_Address
      Address: University of Texas
      Address: Institute of Geophysics
      Address: J.J. Pickle Research Campus, Bldg. 196
      Address: 10100 Burnet Road (R2200)
      City: Austin
      Province_or_State: TX
      Postal_Code: 78758
      Country: USA
   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 Motion/Ice Sheet Motion
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: Sea Ice
   Variable_Level_1: Ice Floes
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Snow/Ice
   Variable_Level_1: Snow Stratigraphy
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Oceans
   Term: Sea Ice
   Variable_Level_1: Ice Floes
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Snow/Ice
   Variable_Level_1: Snow Stratigraphy
End_Group
ISO_Topic_Category: Climatology/Meteorology/Atmosphere
Keyword: AGDC
Keyword: Antarctic Ice Sheet
Keyword: Ice Floe
Keyword: Ice Flow
Keyword: Ice Penetrating Radar
Keyword: Ice Stratigraphy
Keyword: Ice Stream
Keyword: NSIDC > National Snow and Ice Data Center
Keyword: Office of Polar Programs
Keyword: Radar
Keyword: Siple Coast
Keyword: Siple Dome
Keyword: West Antarctic Ice Sheet
Sensor_Name: GPR > Ground Penetrating Radar
Source_Name: GROUND-BASED OBSERVATIONS
Group: Temporal_Coverage
   Start_Date: 2002-01-03
   Stop_Date: 2002-01-28
End_Group
Group: Temporal_Coverage
   Start_Date: 2000-11-11
   Stop_Date: 2000-12-07
End_Group
Data_Set_Progress: in work
Group: Spatial_Coverage
   Southernmost_Latitude: -84
   Northernmost_Latitude: -81
   Westernmost_Longitude: -158
   Easternmost_Longitude: -134
End_Group
Group: Location
   Location_Category: CONTINENT
   Location_Type: ANTARCTICA
End_Group
Group: Quality

   Error in the measurements arises from three main sources:

       * the migration technique (See Processing Steps 
   (http://nsidc.org/data/docs/agdc/nsidc0274_conway/index.html#processingstep).) 
    * uncertainty picking the location of the bed reflection     * uncertainty in 
   the radio wave velocity within the glacier.

   For these measurements the investigators estimate the uncertainty in ice 
   thickness to be approximately 5 m.

End_Group
Data_Set_Language: English
Originating_Center: AGDC
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: AGDC > Antarctic Glaciological Data Center
   Data_Center_URL: http://nsidc.org/agdc/
   Group: Personnel
      Role: Data Center Contact
      First_Name: AGDC
      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: Distribution
   Distribution_Media: FTP
   Distribution_Size: 16 - 1638.4 KB
   Distribution_Format: Binary
End_Group
Group: Distribution
   Distribution_Media: FTP
   Distribution_Size: 226 - 397 KB
   Distribution_Format: Joint Photographic Expert Group (JPEG) (.jpg)
End_Group
Group: Reference

   Anandakrishnan, S., R. B. Alley, R. W. Jacobel, and H. Conway. 2000. The flow 
   regime of Ice Stream C and hypotheses concerning its recent stagnation. 
   Antarctic Research Series 77, 283-296.

   Catania, G., H. Conway, C. Raymond, and T. Scambos. 2004. Surface morphology 
   and internal layer stratigraphy in the downstream end of Kamb Ice Stream, West 
   Antarctica. Journal of Glaciology. In press.

   Catania, G., H. Conway, C. Raymond, and T. Scambos. 2004. Evidence for 
   grounding-line fluctuations prior to the stagnation of Kamb Ice Stream, West 
   Antarctica. Journal of Geophysical Research: Earth Surface. Submitted.

   Catania, G., H. Conway, A. Gades, C. Raymond, and H. Engelhardt. 2003. Bed 
   reflectivity beneath inactive ice streams in West Antarctica. Annals of 
   Glaciology 36, 287-291.

   Conway, H., G. Catania, C. Raymond, A. Gades, T. Scambos, and H. Engelhardt. 
   2002. Switch of flow direction of an Antarctic ice stream. Nature 419, 465-467.

   Jones, F., B. Narod and G. K. C. Clarke. 1989. Design and operation of a 
   portable, digital impulse radar. Journal of Glaciology 35(119), 143-148.

   Ng, F. and H. Conway. 2004. Fast-flow signature in the stagnated Kamb Ice 
   Stream, West Antarctica. Geology 32(6), 481-484. doi: 10.1130/G20317.1

    Parizek, B., R .B. Alley, S. Anandakrishnan, and H. Conway. 2002. 
   Sub-catchment melt and long-term stability of Ice Stream D, West Antarctica. 
   Geophysical Research Letters doi: 10.1029/2001GL014240.

   Waddington, E. D., H. Conway, E. Steig, R. B. Alley, E. J. Brook, K. C. 
   Taylor, and J. W. C. White. 2005. Decoding the dipstick: thickness of Siple 
   Dome, West Antarctica, at the last glacial maximum. Geology 33(4), 281-284.

   Watts, R. D. and D. L. Wright. 1981. Systems for measuring thickness of 
   temperate and polar ice from the ground or from the air. Journal of Glaciology 
   27(97), 459-469.

End_Group
Group: Summary

   These data consist of ground-based, ice-penetrating radar profiles across 
   satellite-detected lineations and terrains that were taken in the lower 
   reaches of Ross Ice Stream C, also known as the Kamb Ice Stream (KIS); on 
   Roosevelt Island; on the Siple Dome; and on the Shabtaie Ice Ridge. 
   Researchers collected low  frequency (2 MHz - 7 MHz) data during two separate 
   deployments, 11 November through 7 December 2000 and 3 January through 28 
   January 2002. These radar data provide information on surface morphology and 
   internal layer stratigraphy. The data are in the form of raw binary data 
   files, accompanied by processed data files in JPEG format.

   These data are from a study of the scar-like features that are well known from 
   the Siple Coast ice stream system in West Antarctica. The objective of the 
   field work was to identify the nature of several scars, and to further 
   characterize previously-identified margin scars that have been poorly dated. 
   Advanced Very High Resolution Radiometer (AVHRR) and Radarsat image data, 
   which are not included in this data set, were used to locate and map the 
   features, and place them in a regional context. The study describes the recent 
   history of the Siple Coast glaciers and investigates the causes of their 
   changes in configuration. The main investigative tools were ground penetrating 
   radar (GPR) profiles used to image internal layers and measure the depths to 
   buried crevasses or disrupted layering. This, coupled with accumulation rates 
   determined from shallow ice cores, provides 'shutdown' ages for the margin 
   features. The field data provide input parameters for simple models of ice 
   flow for margins and inter-ice stream ridges during active shearing and after 
   shutdown. Such modeling will output an estimate of the initial elevation of 
   scars and the corresponding ice stream elevation at the time of shutdown.

End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/waiscores/data.html
   Description: WAISCORES: Deep Ice Coring in West Antarctica
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW RELATED INFORMATION
   End_Group
   URL: http://nsidc.org/data/nsidc-0141.html
   Description: Ice Motion and Topography Near Margin Areas of Kamb Ice Stream, Antarctica
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW RELATED INFORMATION
   End_Group
   URL: http://nsidc.org/data/nsidc-0085.html
   Description: Siple Dome Glaciology and Ice Stream History 1994, 1996
End_Group
IDN_Node: AMD/US
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 2005-12-15
Last_DIF_Revision_Date: 2014-03-14
DIF_Revision_History: Removed USADCC logo for Search cleanup.