ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
TBB Features of Continuous Torrential Rain over Huaihe River Valley in Summer of 2007
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Abstract:
With the TBB data from FY2C satellite and the hourly observed precipitation da ta, the TBB features of torrential rain in Huaihe River valley from June 30 to Jul y 10, 2007 are studied. Based on the records of the strongest rainfall period, s ome synoptic and climatic characteristics are summarized. The results show that TBB can directly and quantitatively present the features of intensity and distributi on of cloud system with heavy rainfall. The torrential rainfall and the lower TB B band have a good relationship, and the southwest monsoon is very strong. The t ransported water vapor from the South China Sea to the northeast along the north west side of the subtropical high and Guangxi Province, and the constant flow of fresh air from westerly trough, meet in Huaihe River valley, which plays an important part in the generation, development and maintenance of the strong conv ective cloud cluster in Huaihe River valley. The lower TBB band along the Huaih e River valley is less dynamically stable with a small northsouth swing, and t he process appear to be in a cycles of developmentenhancementweakeningreg eneration, which causes in a torrential rain over Huaihe River valley.
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