NOAA KLM User's Guide
Meteorologists and climatologists are interested in short- and long-term observations of snow and ice cover because of its affect on weather forecasting and climatic processes. Snow and ice analysts in the National Oceanic and Atmospheric Administration's (NOAA) National Environmental Satellite, Data, and Information Service (NESDIS) have been creating weekly maps showing the extent of snow cover for the Northern Hemisphere since 1966. The snow and ice maps, from 1966 to 1999, were produced weekly at a spatial resolution of 190 kilometers (km). The Interactive Multisensor Snow and Ice Mapping System (IMS) replaced the weekly mapping process in June 1999 and improved the snow and ice map by producing daily maps at 23 km resolution.
Amended December 28, 2000
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