Lidar observations of high altitude cirrus clouds near the tropical tropopause
作者： K Parameswaran , S.V Sunilkumar , B.V Krishna Murthy , K Satheesan
DOI: 10.1016/J.ASR.2003.08.064
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摘要: Abstract The physical properties of high altitude cirrus occurring near the tropical tropopause are studied at station Gadanki (13.5°N, 79.2°E) using a monostatic lidar. This study indicates that region 14–16 km is more favourable for formation cirrus. cloud depth varies from 0.4 to 4 km. Clouds with optical less than 0.03 (subvisual cirrus) found occur quite frequently this region. They introduce significant depolarisation backscatter radiation indicating presence non-spherical ice crystals. Formation and persistence these clouds be closely associated strength tropospheric turbulence, estimated vertical wind data obtained MST radar.
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