NIC Interactive Multisensor Snow and Ice Mapping System (IMS) NCEI Regional Snowfall Index (RSI) National Operational Hydrologic Remote Sensing Center (NOSHRC) MODIS Snow and Sea Ice Global Mapping Project NOAA OSPO Multisensor Auto Snow Ice NH Spring Snow Cover Indicator at Climate.gov Rasmussen & Libbrecht Collection of Snow Crystal Photos
Canadian Cryospheric Information Network Environment Canada SST anomalies and Snow Cover Alaska-Pacific River Forecast Center Alaska Snow Data
NOAA OSPO Multisensor Auto Snow Ice SH
National Snow and Ice Data Center (NSIDC) Snow and Ice at the National Centers for Environmental Information (NCEI) European Space Agency (ESA) GlobSnow Global Observing Systems Information Center (GOSIC)