Relationship between Topography and Daytime Cloud Activity around Tibetan Plateau.
- 1 January 2002
- journal article
- Published by Meteorological Society of Japan in Journal of the Meteorological Society of Japan. Ser. II
- Vol. 80 (6) , 1339-1355
- https://doi.org/10.2151/jmsj.80.1339
Abstract
,The relationship between topography,and daytime cloud activity over the,Tibetan ,Plateau ,and ,surrounding ,areas ,was ,examined ,by using Geostationary Meteorological,Satellite (GMS) Visible (VIS) and Infrared (IR) images during the premonsoon, and monsoon periods in 1998. Previous studies using IR images have,already,confirmed,the strong,diurnal,variation of convective activity over the Tibetan,Plateau. This study relies primarily,on VIS images to ,analyze ,daytime ,cloud distribution ,because ,VIS images ,are more,adaptable ,to low-level ,clouds and ,they ,offer better ,spatial resolution than,IR images. IR images are used to judge whether cloud,tops are high or low. High-level ,clouds ,are ,prominent over ,the ,large-scale (100-300 km) mountain ranges, but fewer clouds are observed in the major valleys in the plateau,during ,premonsoon ,and ,monsoon periods ,at 15 Local Solar TimeKeywords
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