When scientists talk about the cryosphere, they mean the places on Earth where water is in its solid form, frozen into ice or snow. Read more ...
On Friday, 17 October 2015 from 8:00 a.m. to 5:00 p.m. (USA Mountain Time), our Web site and FTP services will be unavailable because of system maintenance. We apologize for any inconvenience this may cause you.
NSIDC archives and distributes Level-2 and Level-3 snow cover and sea ice data derived from the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor on NASA's Earth Observing System (EOS) Aqua and Terra satellites.