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ISLSCP II Northern Hemisphere Monthly Snow Cover Extent

Data Set Overview

Data setISLSCP II Northern Hemisphere Monthly Snow Cover Extent
DOI10.3334/ORNLDAAC/982
Release date2010-07-26
ProjectInternational Satellite Land Surface Climatology Project (ISLSCP II)
Time Period1986-01-01 to 1995-12-31

Description

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.

Documentation

Data set reference document

Citation

Armstrong, R. L., and M. J. Brodzik. 2010. ISLSCP II Northern Hemisphere Monthly Snow Cover Extent. In Hall, Forrest G., G. Collatz, B. Meeson, S. Los, E. Brown de Colstoun, and D. Landis (eds.). ISLSCP Initiative II Collection. Data set. Available on-line [http://daac.ornl.gov/] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A. https://doi.org/10.3334/ORNLDAAC/982
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Project

International Satellite Land Surface Climatology Project (ISLSCP II): The International Satellite Land-Surface Climatology Project

Companion Files

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  • 1_snow_cover_doc.pdf
  • 0_snow_cover_readme.txt

Data Files

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Data File (Granule)File SizeDates
snow_cover_map_1deg.zip 663.6KB 1986-01-01 - 1995-12-31
snow_cover_data_qdeg.zip 4.3MB 1986-01-01 - 1995-12-31
snow_cover_data_1deg.zip 296.0KB 1986-01-01 - 1995-12-31
snow_cover_data_hdeg.zip 1.1MB 1986-01-01 - 1995-12-31

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Use Metrics

NumberEarliest DateLastest DateNotes
Publications120152015Publications Citing this data set
Downloads8762012-01-242017-05-217973 total files downloaded