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oai:mercury-ops2.ornl.gov:ornldaac_982 2017-01-20T09:44:49Z ORNLDAAC

ISLSCP_SNOW_COVER_XDEG ISLSCP II Northern Hemisphere Monthly Snow Cover Extent ARMSTRONG, R.L.; BRODZIK, M.J. ISLSCP II Northern Hemisphere Monthly Snow Cover Extent 2010 Oak Ridge, Tennessee, U.S.A. Oak Ridge National Laboratory Distributed Active Archive Center Online Files doi:10.3334/ORNLDAAC/982 982

ABSTRACT: This ISLSCP data set is derived from the National Snow and Ice Data Center (NSIDC) Northern Hemisphere EASE-Grid Weekly Snow Cover and Sea Ice Extent product which combines snow cover and sea ice extent at weekly intervals for October 1978 through June 2001, and snow cover alone from 1966 through June 2001. The original data set was the first representation of combined snow and sea ice measurements derived from satellite observations for the period of record. Designed to facilitate study of Northern Hemisphere seasonal fluctuations of snow cover and sea ice extent, the original NSIDC data set also includes monthly climatologies describing average extent, probability of occurrence, and variance. This data set shows the extent of snow on the land at a variety of scales (1.0 degree, 0.5 degree, 0.25 degree). The values represent the percentage of days in each month where snow was present -- 100 means 100% of the month, 80 means 80% of the month, etc. There are 4 .zip files provided. Missing data is represented by -99 for water and -88 for land. The data were originally in a yearly tabular format. The file was converted to multi-scale maps by plotting each point in the tabular data onto a map of -99 (water) and -88 (land) created from the standard ISLSCP II Land/Sea Mask.

1986-01-01 1995-12-31 COMPLETE -90 90 -180 180 ESIP Earth Science Information Partners Program EOSDIS Earth Observing System Data Information System TECHNICAL CONTACT ORNL DAAC User Services ORNL DAAC USER SERVICES OFFICE OAK RIDGE NATIONAL LABORATORY OAK RIDGE, TENNESSEE 37831 USA DIF AUTHOR ORNL DAAC User Services ornldaac@ornl.gov (865) 241-3952 (865) 574-4665

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P.O. Box 2008, MS 6407

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Oak Ridge Tennessee 37831-6407 USA 2010-07-26 ORNL_DAAC THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC) http://daac.ornl.gov/ 982 DATA CENTER CONTACT ORNL DAAC USER SERVICES ornldaac@ornl.gov +1(865)241-3952 +1(865)574-4665

ORNL DAAC USER SERVICES OFFICE

P.O. Box 2008, MS 6407

Oak Ridge National Laboratory

Oak Ridge Tennessee 37831-6407 USA EARTH SCIENCE BIOSPHERE ECOLOGICAL DYNAMICS ECOSYSTEM FUNCTIONS EARTH SCIENCE CRYOSPHERE SNOW/ICE SNOW COVER EARTH SCIENCE LAND SURFACE SURFACE RADIATIVE PROPERTIES ALBEDO NPP GPPDI ALBEDO ISLSCP BIOSPHERE GRID DATA LAND COVER SNOW COVER MODEL OUTPUT NORTHERN HEMISPHERE NET PRIMARY PRODUCTION GLOBAL ENERGY AND WATER CYCLE EXPERIMENT INTERNATIONAL SATELLITE LAND-SURFACE CLIMATOLOGY PROJECT GET DATA http://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=982 VIEW RELATED INFORMATION https://daac.ornl.gov//ISLSCP_II/guides/snow_cover_xdeg.html ISLSCP II Northern Hemisphere Monthly Snow Cover Extent USA/NASA ENGLISH GCMD CEOS IDN DIF VERSION 9.0