Entry_ID: NSIDC-0481
Entry_Title: MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR
Group: Data_Set_Citation
   Dataset_Creator: Joughin, I., B. Smith, I. Howat, T. Scambos.
   Dataset_Title: MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR
   Dataset_Release_Date: 2011-05-19updated 2013
   Dataset_Release_Place: Boulder, Colorado USA
   Dataset_Publisher: NSIDC: National Snow and Ice Data Center
   Online_Resource: http://nsidc.org/data/nsidc-0481.html
   Dataset DOI: http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0481.001
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Ian
   Last_Name: Joughin
   Group: Contact_Address
      Address: University of Washington
      Address: Applied Physics Laboratory
      Address: 1013 NE 40th Street
      Address: Box 355640
      City: Seattle
      Province_or_State: WA
      Postal_Code: 98105
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Ian
   Last_Name: Howat
   Group: Contact_Address
      Address: Ohio State University
      Address: Byrd Polar Research Center
      Address: Scott Hall Room 108
      Address: 1090 Carmack Road
      City: Columbus
      Province_or_State: Ohio
      Postal_Code: 43210
      Country: USA
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Ted
   Last_Name: Scambos
   Email: scambos@nsidc.org
   Group: Contact_Address
      Address: University of Colorado
      Address: Cooperative Institute for Research in Environmental Science
      Address: National Snow and Ice Data Center
      Address: CIRES,  449 UCB
      City: Boulder
      Province_or_State: CO
      Postal_Code: 80309-0449
   End_Group
End_Group
Group: Personnel
   Role: Investigator
   First_Name: Ben
   Last_Name: Smith
   Group: Contact_Address
      Address: University of Washington
      Address: Polar Science Center Applied Physics Laboratory
      Address: University of Washington
      Address: Department of Earth and Space Sciences
      City: Seattle
      Province_or_State: WA
      Postal_Code: 98195
      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: Glaciers
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 Motion
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Cryosphere
   Term: Snow/Ice
   Variable_Level_1: Ice Velocity
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Snow/Ice
   Variable_Level_1: Ice Motion
End_Group
Group: Parameters
   Category: EARTH SCIENCE
   Topic: Terrestrial Hydrosphere
   Term: Snow/Ice
   Variable_Level_1: Ice Velocity
End_Group
ISO_Topic_Category: Climatology/Meteorology/Atmosphere
Keyword: Glacier
Keyword: Greenland
Keyword: Ice Velocity
Keyword: ICE VELOCITY DATA
Sensor_Name: SAR > Synthetic Aperture Radar
Source_Name: TSX > TerraSAR-X
Group: Temporal_Coverage
   Start_Date: 2009-01-01
   Stop_Date: 2011-11-30
End_Group
Data_Set_Progress: complete
Group: Spatial_Coverage
   Southernmost_Latitude: 60
   Northernmost_Latitude: 82
   Westernmost_Longitude: -70
   Easternmost_Longitude: -20
End_Group
Group: Location
   Location_Category: CONTINENT
   Location_Type: NORTH AMERICA
   Location_Subregion1: GREENLAND
End_Group
Project: MEASURES > Making Earth System Data Records for Use in Research Environments
Data_Set_Language: English
Originating_Center: NSIDC
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: 2.6 GB
   Distribution_Format: Binary
End_Group
Group: Reference

   Ahn, Y. and I. Howat. 2011. Efficient Automated Glacier Surface Velocity 
   Measurement From Repeat Images Using Multi-Image/Multichip and Null Exclusion 
   Feature Tracking. IEEE Transactions on Geoscience and Remote Sensing Vol. 49, 
   No. 8. doi:10.1109/TGRS.2011.2114891.

   Howat, I. M., J. E. Box, Y. Ahn, A. Herrington, E. M. McFadden. 2010. Seasonal 
   Variability in the Dynamics of Marine-Terminating Outlet Glaciers in 
   Greenland.Journal of Glaciology, 56(198), pp. 601-613. 
   doi:10.3189/002214310793146232.

   Joughin, I. 2002. Ice-Sheet Velocity Mapping: A Combined Interferometric and 
   Speckle-Tracking Approach. Annals of Glaciology 34: 195-201. 
   doi:10.3189/172756402781817978.

   Joughin, I., W. Abdalati, and M. Fahnestock. 2004. Large fluctuations in speed 
   on Greenland's Jakobshavn Isbræ glacier. Nature,Vol. 432: 608-610.

   Joughin, I., B. Smith, I. M. Howat, T. Scambos, and T. Moon. 2010. Greenland 
   Flow Variability from Ice-Sheet-Wide Velocity Mapping. Journal of Glaciology, 
   56 (197), pp. 415-430, doi: 10.3189/002214310792447734.

   
Joughin, I., R. Kwok, and M. Fahnestock, 1996. Estimation of Ice Sheet Motion 
   Using Satellite Radar Interferometry: Method and Error Analysis with 
   Application to Humboldt Glacier, Greenland. Journal of Glaciology 42(142) pp 
   564-575.

End_Group
Group: Summary

   This data set is part of the NASA Making Earth System Data Records for Use in 
   Research Environments (MEaSUREs) program. This data set provides maps of 
   glacier outlet areas, some of which have shown profound velocity changes over 
   the MEaSUREs observation period from 2000 to 2011. The data are provided in 
   addition to the ice-sheet-wide data from the related data set, MEaSUREs 
   Greenland Ice Sheet Velocity Map from InSAR Data (NSIDC-0478: 
   http://nsidc.org/data/nsidc-0478.html). The InSAR Selected Glacier Site 
   Velocity Maps are produced from TerraSAR-X (TSX) image pairs collected from 
   January through November 2009, January through December 2010, and January 
   through November 2011.

   Data are available via FTP, in 4-byte Institute of Electrical and Electronics 
   Engineers (IEEE) floating point format.

   Note: These data are considered provisional pending a review by the MEaSUREs 
   program. Once the data have been reviewed, this statement will be removed from 
   this documentation.

End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/measures/
   Description: MEaSUREs project Web site
End_Group
Group: Related_URL
   Group: URL_Content_Type
      Type: VIEW PROJECT HOME PAGE
   End_Group
   URL: http://nsidc.org/data/measures/
   Description: NSIDC MEaSUREs Web page
End_Group
Metadata_Name: CEOS IDN DIF
Metadata_Version: 9.7
DIF_Creation_Date: 2011-05-19
Last_DIF_Revision_Date: 2014-03-04
Group: DIF_Revision_History

   Removed the MEaSUREs logo from cat page. This is for Search cleanup for the 
   sponsored program short names. 

End_Group