Skip to main content
ORNL DAAC HomeNASA Home

DAAC Home > Get Data > NASA Projects > International Satellite Land Surface Climatology Project (ISLSCP II) > Landing page

ISLSCP II Northern Hemisphere Monthly Snow Cover Extent

Overview

DOIhttps://doi.org/10.3334/ORNLDAAC/982
Version1
Project
Published2010-07-26
Updated2023-10-15
Usage2292 downloads
Citations1 publication cited this dataset

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.

Science Keywords

  • CRYOSPHERE
  • SNOW/ICE
  • SNOW COVER
  • BIOSPHERE
  • ECOLOGICAL DYNAMICS
  • ECOSYSTEM FUNCTIONS
  • BIOGEOCHEMICAL CYCLES
  • LAND SURFACE
  • SURFACE RADIATIVE PROPERTIES
  • ALBEDO

Data Use and Citation

Download citation from Datacite
RISBibTexOther
Crosscite Citation Formatter
Armstrong, R.L., M.J. Brodzik, F.G. Hall, G.J. Collatz, B.W. Meeson, S.O. Los, E.Brown De Colstoun, and D.R. Landis. 2010. ISLSCP II Northern Hemisphere Monthly Snow Cover Extent. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/982

This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use Policy. See our Data Use and Citation Policy for more information.

Data Files

Sign in to download files.

Companion Files

Toggle Companion Files

Sign in to download files.

Dataset has 2 companion files.

  • 1_snow_cover_doc.pdf
  • 0_snow_cover_readme.txt

Visualize and Subset Data