AN ANALYSIS OF DISTRIBUTION AND MESOSCALE STRUCTURE OFPRECIPITATION ABOUT LANDFALL TROPICAL CYCLONE KOPPU （0915）

Observation from automatic weather stations, radars and TRMM satellites are employed to investigate theprecipitation distribution of tropical cyclone （TC） Koppu （0915） that made landfall on Guangdong province in 2009.The results show that the precipitation of landfall TC Koppu is featured by signifi...

Full description

Saved in:
Bibliographic Details
Published in热带气象学报：英文版 Vol. 22; no. 4; pp. 445 - 454
Main Author AN Cheng YUAN Jin-nan MENG Wei-guang ZHANG Yan-xia JIANG De-hai
Format Journal Article
LanguageEnglish
Published 2016
Subjects
analysis
asymmetric
characteristics
diagnostic
distribution
KOPPU
landfall
mesoscalestructure
precipitation
Online AccessGet full text

Cover

More Information
Summary:Observation from automatic weather stations, radars and TRMM satellites are employed to investigate theprecipitation distribution of tropical cyclone （TC） Koppu （0915） that made landfall on Guangdong province in 2009.The results show that the precipitation of landfall TC Koppu is featured by significant asymmetry and mesoscalestructure, and occurs mainly to the left of its moving path. By examining the sea surface temperature （SST）, water vaporflux, Q vector, vertical wind shear of environment etc., it is found out that the distribution of SST, water vaporconvergence, low-level convective ascending and vertical wind shear facilitates the TC precipitation to take place to theleft of the TC moving path. The mesoscale structure separated by Barnes band-pass filter presents that the precipitationof landfall KOPPU has some organized mesoscale spiral structures, which is around the TC center and composed of theform of belts or blocks. The heavy local rainfall of landfall TC Koppu is primarily associated with the rainfall due tomesoscale spiral structure.
Bibliography:44-1409/P
ISSN:1006-8775