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, 01 April 2016 from 9:00 a.m. to 3:00 p.m. (USA Mountain Time), FTP and some applications on our web site may be unavailable due to system maintenance. We apologize for any inconvenience this may cause you.
NASA National Snow and Ice Data Center Distributed Active Archive Center
Level-1A global laser pointing data (GLAH04) contain two orbits of attitude data from the spacecraft star tracker, instrument star tracker, gyro, and laser reference system, and other spacecraft attitude data required to calculate precise laser pointing.