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	      Date:  2014-04-17
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	         gmd:citation:  
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	               gmd:title:  Northern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice Extent
	               gmd:date:  
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	                     gmd:date:  2013
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	                  gmd:Date:  2013-01-31
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	                           gmd:address:  
	                              gmd:deliveryPoint:  National Snow and Ice Data Center
	                              gmd:city:  Boulder
	                              gmd:administrativeArea:  CO
	                              gmd:postalCode:  80309-0449
	                              gmd:country:  USA
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	         gmd:Abstract:  
	
	            The Northern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice Extent 
	            Version 4 product combine snow cover and sea ice extent at weekly intervals 
	            from 23 October 1978 through 31 December 2011, and snow cover alone from 03 
	            October 1966 through 31 December 2011. Snow cover extent for this data set is 
	            based on the NOAA/NCDC Climate Data Record (CDR) of Northern Hemisphere (NH) 
	            Snow Cover Extent (SCE) by D. Robinson (2012) and regridded to the EASE-Grid. 
	            The NOAA/NCDC CDR of Northern Hemisphere Snow Cover Extent data were derived 
	            from the manual interpretation of AVHRR, GOES, and other visible-band 
	            satellite data (Helfrich et al. 2007). Sea ice extent is regridded to 
	            EASE-Grid from Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS 
	            Passive Microwave Data. Designed to facilitate study of Northern Hemisphere 
	            seasonal fluctuations of snow cover and sea ice extent, the data set also 
	            includes monthly climatologies describing average extent, probability of 
	            occurrence, and variance. Data are provided in flat, unsigned binary files and 
	            are available via FTP.
	         gmd:Purpose:  Scientific Research
	         gmd:Credit:  Brodzik, M. and R. Armstrong. 2013. Northern Hemisphere EASE-Grid 2.0 Weekly Snow Cover and Sea Ice Extent. Version 4. [indicate subset used]. Boulder, Colorado USA: NASA DAAC at the National Snow and Ice Data Center. 
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	            gmd:individualName:  Richard Armstrong
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	            gmd:individualName:  Mary J. Brodzik
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	                        gco:CharacterString:  VAS > VISSR Atmospheric Sounder
	               gmi:type:  
	                  gco:CharacterString:  sensor
	         gmi:platform:  
	            gmi:MI_Platform:  
	               gmi:identifier:  
	                  gmd:MD_Identifier:  
	                     gmd:code:  
	                        gco:CharacterString:  DMSP > Defense Meteorological Satellite Program
	               gmi:description:  
	                  gco:CharacterString:  satellite
	               gmi:instrument:  
	                  gco:CharacterString:  N/A
	         gmi:platform:  
	            gmi:MI_Platform:  
	               gmi:identifier:  
	                  gmd:MD_Identifier:  
	                     gmd:code:  
	                        gco:CharacterString:  DMSP 5D-2/F11 > Defense Meteorological Satellite Program-F11
	               gmi:description:  
	                  gco:CharacterString:  satellite
	               gmi:instrument:  
	                  gco:CharacterString:  N/A
	         gmi:platform:  
	            gmi:MI_Platform:  
	               gmi:identifier:  
	                  gmd:MD_Identifier:  
	                     gmd:code:  
	                        gco:CharacterString:  DMSP 5D-2/F13 > Defense Meteorological Satellite Program-F13
	               gmi:description:  
	                  gco:CharacterString:  satellite
	               gmi:instrument:  
	                  gco:CharacterString:  N/A
	         gmi:platform:  
	            gmi:MI_Platform:  
	               gmi:identifier:  
	                  gmd:MD_Identifier:  
	                     gmd:code:  
	                        gco:CharacterString:  DMSP 5D-2/F8 > Defense Meteorological Satellite Program-F8
	               gmi:description:  
	                  gco:CharacterString:  satellite
	               gmi:instrument:  
	                  gco:CharacterString:  N/A
	         gmi:platform:  
	            gmi:MI_Platform:  
	               gmi:identifier:  
	                  gmd:MD_Identifier:  
	                     gmd:code:  
	                        gco:CharacterString:  DMSP 5D-3/F17 > Defense Meteorological Satellite Program-F17
	               gmi:description:  
	                  gco:CharacterString:  satellite
	               gmi:instrument:  
	                  gco:CharacterString:  N/A
	         gmi:platform:  
	            gmi:MI_Platform:  
	               gmi:identifier:  
	                  gmd:MD_Identifier:  
	                     gmd:code:  
	                        gco:CharacterString:  GOES > NOAA Geostationary Operational Environmental Satellites
	               gmi:description:  
	                  gco:CharacterString:  satellite
	               gmi:instrument:  
	                  gco:CharacterString:  N/A
	         gmi:platform:  
	            gmi:MI_Platform:  
	               gmi:identifier:  
	                  gmd:MD_Identifier:  
	                     gmd:code:  
	                        gco:CharacterString:  GOES-7 > Geostationary Operational Environmental Satellite 7
	               gmi:description:  
	                  gco:CharacterString:  satellite
	               gmi:instrument:  
	                  gco:CharacterString:  N/A
	         gmi:platform:  
	            gmi:MI_Platform:  
	               gmi:identifier:  
	                  gmd:MD_Identifier:  
	                     gmd:code:  
	                        gco:CharacterString:  NIMBUS-7
	               gmi:description:  
	                  gco:CharacterString:  satellite
	               gmi:instrument:  
	                  gco:CharacterString:  N/A
	         gmi:platform:  
	            gmi:MI_Platform:  
	               gmi:identifier:  
	                  gmd:MD_Identifier:  
	                     gmd:code:  
	                        gco:CharacterString:  NOAA POES > NOAA Polar Orbiting Environmental Satellites
	               gmi:description:  
	                  gco:CharacterString:  satellite
	               gmi:instrument:  
	                  gco:CharacterString:  N/A