GLAS

glas

GLAS (the Geoscience Laser Altimeter System) is the first laser-ranging (lidar) instrument for continuous global observations of Earth. From aboard the Ice Cloud and Elevation Satellite (ICESat) spacecraft, it will make unique atmospheric observations, including measuring ice-sheet topography, cloud and atmospheric properties, and the height and thickness of radiatively important cloud layers needed for accurate short term climate and weather prediction.