雪氷圏
International Association of Cryospheric Sciences (IACS)
International Glaciological Society (IGS)
Global Outlook for Ice and Snow Assessment on the state and future of the Cryosphere, by the UN Environment Programme, June 2007
Cryosphere overview map, from the UN Environment Programme
Department of Atmospheric Sciences at the University of Illinois: Cryosphere Today
Canadian Cryospheric Information Network
State of the Canadian Cryosphere
Near-real-time overview of global ice concentration and snow extent
National Snow and Ice Data Center