Weekly Snow Cover Extent in the Northern Hemisphere (1972-1999)

Weekly array of snow cover extent over Northern Hemisphere on a 190.5 km Polar Sterographic grid. The array consists of either a "0" or "1" where the threshold for snow cover is 50% or more snow in a gridbox. These data are available from 1973. There is about a 1-week delay for the latest information. These data will be used to compute monthly anomalies of snow cover extent over the NH. The operational snow cover product is output as an 89X89 grid that has been overlaid on a polar stereographic projection. Each yearly file consist of 52 or 53 weeks depending upon whether it is a leap year. Also, the snow data consists of ones and zeros, where one signifies that snow cover exists in a grid box and zero means no snow cover.

Identifier
Source http://www.cpc.ncep.noaa.gov/data/snow
Metadata Access http://www.polardata.ca/oai/provider?verb=GetRecord&metadataPrefix=fgdc&identifier=10971_fgdc
Provenance
Creator National Oceanic and Atmospheric Administration (NOAA)
Publisher Canadian Cryospheric Information Network
Contributor Canadian Cryospheric Information Network
Publication Year 2014
Rights Public
Contact pdc@uwaterloo.ca
Representation
Language English
Coverage
Discipline Environmental Research
Spatial Coverage (-0S-90N,180W-180E)
Temporal Coverage Begin 1972-01-01T11:59:59Z
Temporal Coverage End 1999-12-31T11:59:59Z