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GEOPHYSICAL RESEARCH LETTERS,
VOL. 32,
L22S06,
4 PP., 2005
doi:10.1029/2005GL023671
Height distribution between cloud and aerosol layers from the GLAS spaceborne lidar in the Indian Ocean region
Science Systems and Applications, Inc., NASA Goddard Space Flight Center, Code 613.1, Greenbelt, Maryland, USA
NASA Goddard Space Flight Center, Code 613.1, Greenbelt, Maryland, USA
Science Systems and Applications, Inc., NASA Goddard Space Flight Center, Code 613.1, Greenbelt, Maryland, USA
Science Systems and Applications, Inc., NASA Goddard Space Flight Center, Code 613.1, Greenbelt, Maryland, USA
The Geoscience Laser Altimeter System (GLAS), a nadir pointing lidar on the Ice Cloud and land Elevation Satellite (ICESat) launched in 2003, now provides important new global measurements of the relationship between the height distribution of cloud and aerosol layers. GLAS data have the capability to detect, locate, and distinguish between cloud and aerosol layers in the atmosphere up to 40 km altitude. The data product algorithm tests the product of the maximum attenuated backscatter coefficient β′(r) and the vertical gradient of β′(r) within a layer against a predetermined threshold. An initial case result for the critical Indian Ocean region is presented. From the results the relative height distribution between collocated aerosol and cloud shows extensive regions where cloud formation is well within dense aerosol scattering layers at the surface.
Received 31 May 2005; accepted 24 August 2005; published 30 September 2005.
Citation: (2005), Height distribution between cloud and aerosol layers from the GLAS spaceborne lidar in the Indian Ocean region, Geophys. Res. Lett., 32, L22S06, doi:10.1029/2005GL023671.
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