Distribution of convection associated with tropical cyclones making landfall along the South China coast |
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| Authors: | K S Liu J C L Chan W C Cheng S L Tai P W Wong |
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| Institution: | (1) Laboratory for Atmospheric Research, Department of Physics and Materials Science, City University of Hong Kong, Hong Kong, China |
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| Abstract: | Summary This study examines the convection distribution associated with 18 TCs that made landfall along the South China coast during
1995 and 2005. Cloud-top temperatures from high-resolution satellite imageries of the Geosynchronous Meteorological Satellite
5 are used as proxy of strong convection. It is found that convection tends to be enhanced on the western side of the TC as
it makes landfall in 10 of the cases, in agreement with the conclusion of some previous studies. Four cases have stronger
convection on the eastern side. This “deviation” from the general rule appears to be related to the TCs being more slow-moving
or their interaction of the TC with another land surface prior to its making landfall along the South China coast. For the
remaining cases in which no significant asymmetries in convection can be identified, the vertical wind shear appears to enhance
convection on the east side. |
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