1. Cooperative Institute for Meteorological Satellite Studies, University of Wisconsin, Madison, WI 53706, USA.
2. Department of Atmospheric and Oceanic Sciences, University of Wisconsin, Madison, WI 53706, USA.
3. National Oceanic and Atmospheric Administration (NOAA)/National Environmental Satellite, Data, and Information Service (NESDIS)/Center for Satellite Applications and Research (STAR), 1225 West Dayton Street, Madison, WI 53706, USA.
4. NOAA/NESDIS/National Climatic Data Center, Madison, WI 53706, USA.