www.ncdc.noaa.gov: Карты и данные по снежному покрову
http://www.ncdc.noaa.gov/snow-and-ice/

Recent U.S. Snowfall & Snow Depth Maps http://www.ncdc.noaa.gov/snow-and-ice/recent-snow/

Sea Ice and Snow Cover Extent http://www.ncdc.noaa.gov/snow-and-ice/extent/




Snow Cover Maps http://www.ncdc.noaa.gov/snow-and-ice/snow-cover/
U.S. Snow Monitoring Snowfall Maps http://gis.ncdc.noaa.gov/map/viewer/#app=cdo&cfg=obs_m&theme=ghcndms&layers=00001

США
http://www.ncdc.noaa.gov/snow-and-ice/snow-cover/us/20150101-20150731
Евразия
http://www.ncdc.noaa.gov/snow-and-ice/snow-cover/ea/20150101-20150731

- - - -
The National Snow and Ice Data Center http://nsidc.org/