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 Thursday, 12 June 2014 from 3:00 p.m. to 4:00 p.m. (USA Mountain Time), our Web services will be unavailable due to NSIDC server maintenance. We apologize for any inconvenience this may cause you
a suspension of numerous minute ice crystals in the air, reducing visibility at the earth's surface; the crystals often glitter in the sunshine; ice fog produces optical phenomena such as luminous pillars and small haloes.