ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Archive > Volume 31 Issue 12 > 2005,31(12):41-45. DOI:10.7519/j.issn.1000-0526.2005.12.008 Prev Next
Analysis of Relationship between Heavy Rain and Jetstream with Radar VWP Product
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Abstract:
An analysis of a heavy rainfall event on 16, July 2004 in Linyi, Shandong is made with radar's VWP product and hourly rainfall data, it shows that the event is characterized with apparent meso-scale features, the vertical structure and maintaining of southwest-moist-jet can be clearly revealed by VWP product, high and low level jet, both with their downward perturbation relate closely with enhancement of rainfall. Extent of rainfall enhancement caused by low level jet's intensification and its downward perturbation is much greater than that of high level jet, and heavy rainfall is mainly induced by low level jet's intensification and perturbation. A jet perturbation index is developed and applied to verify this viewpoint.
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