HR: 0800h
AN: A41A-0024    [Abstracts]
TI: Global Aerosol Measurements from the Geoscience Laser Altimeter System
AU: * Spinhirne, J D
EM: james.spinhirne@nasa.gov
AF: NASA, Goddard SFC/912, Greenbelt, MD 20771 United States
AU: Welton, E J
EM: welton@virl.gsfc.nasa.gov
AF: NASA, Goddard SFC/912, Greenbelt, MD 20771 United States
AU: Palm, S P
EM: spp@virl.gsfc.nasa.gov
AF: SSAI, Goddard SFC/912, Greenbelt, MD 20771 United States
AU: Hlavka, D L
EM: sgdlh@virl.gsfc.nasa.gov
AF: SSAI, Goddard SFC/912, Greenbelt, MD 20771 United States
AU: Hart, W D
EM: billhart@virl.gsfc.nasa.gov
AF: SSAI, Goddard SFC/912, Greenbelt, MD 20771 United States
AB: The Geoscience Laser Altimeter System (GLAS) on board the Ice, Cloud and Land Elevation Satellite provides space-borne laser observations of distribution of atmospheric aerosol layers. Full global observations began in October 2003 and have continued in three four-to-six week operation periods since. Aerosol profile measurement are made at two wavelengths, 532 and 1064 nm, and data products are produced for the height distribution of aerosol scattering, the boundaries of layers including multiple and elevated layers, the optical depth of layers and calculated aerosol extinction. The data products are now in release through the NASA EOS data distribution system. Global summaries of the aerosol distribution observed by GLAS have been produced and are compared to other satellite retrievals such as MODIS. The GLAS aerosol data products will be described and new results on the nature of the global aerosol distribution will be presented.
UR: http://nsidc.org/daac/icesat/
DE: 9805 Instruments useful in three or more fields
DE: 1863 Snow and ice (1827)
DE: 0305 Aerosols and particles (0345, 4801)
DE: 0320 Cloud physics and chemistry
DE: 0933 Remote sensing
SC: Atmospheric Sciences [A]
MN: 2004 AGU Fall Meeting