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	   gmd:Hierarchy_Level_Name:  MEaSUREs Greenland Ice Sheet Velocity Map from InSAR Data
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	      Date:  2014-10-21
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	         gmd:citation:  
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	               gmd:title:  MEaSUREs Greenland Ice Sheet Velocity Map from InSAR Data
	               gmd:date:  
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	                     gmd:date:  2010
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	                  gmd:Date:  2010-10-01
	               gmd:identifier:  NSIDC-0478
	               gmd:identifier:  http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0478.001
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	         gmd:Abstract:  
	
	            This data set, part of the NASA Making Earth System Data Records for Use in 
	            Research Environments (MEaSUREs) program, provides annual ice-sheet-wide 
	            velocity maps for Greenland, derived using Interferometric Synthetic Aperture 
	            Radar (InSAR) data from the RADARSAT-1 satellite. The data set currently 
	            contains ice velocity data for the winter of 2000-2001 and 2005-2006, 
	            2006-2007, and 2007-2008 acquired from RADARSAT-1 InSAR data from the Alaska 
	            Satellite Facility (ASF), and a 2008-2009 mosaic derived from the Advanced 
	            Land Observation Satelitte (ALOS) and TerraSAR-X data. 

Data are available 
	            via FTP, in 4-byte big-endian Institute of Electrical and Electronics 
	            Engineers (IEEE) floating point and GeoTIFF (.tif) 
	            formats.

Note: Although this data set has been screened for 
	            anomalously large errors, at this stage they are Version 1 products and some 
	            significant errors may persist (>20 m/yr). In addition, these data are 
	            considered provisional pending a review by the MEaSUREs program. Once the data 
	            have been reviewed, this statement will be removed.
	         gmd:Purpose:  Scientific Research
	         gmd:Credit:  Joughin, I., B. Smith, I. Howat, and T. Scambos.. 2010. MEaSUREs Greenland Ice Sheet Velocity Map from InSAR Data. [indicate subset used]. Boulder, Colorado USA: NASA DAAC at the National Snow and Ice Data Center. http://dx.doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0478.001. 
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