%0 Journal Article
%T Effects of vertical wind shear on intensity and rainfall asymmetries of strong Tropical Storm Bilis (2006)<br>Effects of Vertical Wind Shear on Intensity and Rainfall Asymmetries of Strong Tropical Storm Bilis （2006）
%A Jinhua Yu
%A Zhemin Tan
%A Yuqing Wang
%A <br>YU Jinhu
%A TAN Zhemin
%A Yuqing WANG
%J 大气科学进展
%D 2010
%I 
%X The effects of environmental vertical wind shear (VWS) on the intensity and rainfall asymmetries in Tropical Storm (TS) Bilis (2006) have been analyzed based on TRMM/TMI-estimated surface rainfall data, QuikSCAT wind fields, 850- and 200-hPa winds of the NCEP-NCAR reanalysis, precipitation data at 5-min intervals from automatic weather stations over mainland China, and the best track data of TS Bilis (2006). The results show that the simultaneous and 6-hour-lagged correlation coefficients between VWS and storm intensity (the minimum central sea level pressure) are 0.59145 and 0.57438 (P<0.01), respectively. The averaged VWS was found to be about 11 m s-1 and thus suppressed the intensification of Bilis (2006). Distribution of precipitation in Bilis (2006) was highly asymmetric. The azimuthally-averaged rainfall rate in the partial eyewall, however, was smaller than that in a major outer rainband. As the storm intensified, the major rainband showed an unusual outward propagation. The VWS had a great impact on the asymmetric distribution of precipitation. Consistent with previous modeling studies, heavy rainfall generally occurred downshear to downshear-left of the VWS vector both near and outside the eyewall, showing a strong wavenumber-one asymmetry, which was amplified as the VWS increased.
%K vertical wind shear
%K tropical storm
%K rainfall distribution<br>垂直风切变
%K 强热带风暴
%K 不对称
%K 降雨量
%K 强度
%K TRMM卫星
%K 作者
%K 降水分布
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=28A2F569B2458C17&jid=5434AFBF6CB6E7E8D67733B541F211C7&aid=C0A241EF9277AB747AA01DD993517272&yid=140ECF96957D60B2&vid=DB817633AA4F79B9&iid=38B194292C032A66&sid=385E3C2062167B88&eid=B4F9D541F855CF96&journal_id=0256-1530&journal_name=大气科学进展&referenced_num=0&reference_num=46