1319号超强台风“天兔”强度变化的诊断分析
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摘要
利用观测资料和NCEP再分析资料,对超强台风"天兔"海上快速加强及登陆快速减弱期间的相关物理量做了初步诊断分析,结果表明:(1)高的海温,西南季风、越赤道气流持续与"天兔"保持联结,充沛的水汽供应,弱的垂直风切变及强烈的高空辐散与低层辐合的高低层环流配置,是"天兔"快速加强的主要原因;(2)"天兔"登陆后强度迅速减弱的原因与登陆后陆面摩擦消耗能量、登陆前后大气干冷、高低层垂直风切变加大、低层水汽输送被切断以及高空辐散减小等有关。
In this paper,the observations and NCEP analysis are used to study the Super TY "Usagi" intensifying fast at the sea and weakening fast on the land,and our diagnostic analysis results are shown as follows:( a) high sea temperature,the involvement of the southwest monsoon,cross-equatorial flow and supply of water vapor,weak vertical wind shear and the circulation of upper level divergence and low- level convergence are the main reasons of the intensifying of "Usagi";( 2) the reasons of weakening fast after "Usagi"landing are as follows: the energy are consumed because of the land friction and atmosphere is stable before and after its landing,vertical wind shear is increasing,the water vapor transport is cut,and the divergence in 200 hPa is weakening.
In this paper,the observations and NCEP analysis are used to study the Super TY "Usagi" intensifying fast at the sea and weakening fast on the land,and our diagnostic analysis results are shown as follows:( a) high sea temperature,the involvement of the southwest monsoon,cross-equatorial flow and supply of water vapor,weak vertical wind shear and the circulation of upper level divergence and low- level convergence are the main reasons of the intensifying of "Usagi";( 2) the reasons of weakening fast after "Usagi"landing are as follows: the energy are consumed because of the land friction and atmosphere is stable before and after its landing,vertical wind shear is increasing,the water vapor transport is cut,and the divergence in 200 hPa is weakening.
引文
[1]黄莉莉.两个移速快、强度强、路径相似的台风过程分析[J].广东气象,2010,32(5):5-7.
[2]徐祥德.环境动力、热力因素对台风发生、发展影响的数值试验[J].大气科学,1986(03):286-289.
[3]段朝霞,苏百兴.0814强台风“黑格比”西折、快速移动和强度分析[J].广东气象,2010,32(1):18-21.
[4]黄辉,陈淑琴.台风蒲公英两次登陆过程的强度变化分析[J].气象,2006,32(4):106-109.
[5]苏丽欣,张晨辉.环境风垂直切变与个例TC整个生命史中强度的关系[J].广东气象,2007,29(4):30-32.
[6]韦春霞,赵金彪.台风“圣帕”登陆后环流维持和路径变化的诊断分析[J].广东气象,2009,31(1):45-47.
[7]梁健,黄莉莉.建国以来当年登陆我国最早的台风“浣熊”的特点及成因[J].广东气象,2008,30(6):5-8.
[8]杨昌源,李刚毅,梁晓祥,等.0707号强热带风暴“帕布”强度变化探讨[J].气象研究与应用,2007,28(S2):110-112.
[9]唐文,陈见,李生艳,等.“北冕”后期路径左折和强度突然加强成因分析[J].气象研究与应用,2010,31(2):1-4.
[10]吴蔚,崔少萍.台风“莫拉非”非对称环流与强度变化的关系[J].广东气象,2012,32(5):8-11.
[11]赵彪,乔方利,王关锁.海洋表层温度对台风“蔷薇”路径和强度预测精度的影响[J],海洋学报,2012,34(4):41-52.
[12]河惠卿,王振会,金正润.不对称环流对台风强度变化的影响[J].热带气象学报,2008,24(3):249-253.
[13]蔡夏影,赵蕾,吴坤悌,等.1002号台风“康森”过程分析[J].广东气象,2011,33(4):30-34.
[14]赵雪,俞胜斌,邓文君,等.0801号台风“浣熊”的生成及强度特征[J],广东气象,2009,31(2):18-21.
[15]赵凯,张银意,唐红升.0515台风“卡努”登陆后强度衰减的诊断分析[J].台湾海峡,2008,27(3):372-375.
[16]广东省气象局《广东省天气预报技术手册》编写组.广东省天气预报技术手册[M].北京:气象出版社,2006:38.
[17]李英,陈联寿,王继志.登陆热带气旋长久维持与迅速消亡的大尺度环流特征[J].气象学报,2004,62(2):167-179.
[18]曾欣欣,王永.0601号台风登陆前后强度迅速减弱的成因分析[C]∥第三届长三角气象科技论坛论文集,北京:《中国学术期刊(光盘版)》电子杂志社,2006.
[19]梁必骐,天气学教程[M].北京:气象出版社,1995:366-367.
[2]徐祥德.环境动力、热力因素对台风发生、发展影响的数值试验[J].大气科学,1986(03):286-289.
[3]段朝霞,苏百兴.0814强台风“黑格比”西折、快速移动和强度分析[J].广东气象,2010,32(1):18-21.
[4]黄辉,陈淑琴.台风蒲公英两次登陆过程的强度变化分析[J].气象,2006,32(4):106-109.
[5]苏丽欣,张晨辉.环境风垂直切变与个例TC整个生命史中强度的关系[J].广东气象,2007,29(4):30-32.
[6]韦春霞,赵金彪.台风“圣帕”登陆后环流维持和路径变化的诊断分析[J].广东气象,2009,31(1):45-47.
[7]梁健,黄莉莉.建国以来当年登陆我国最早的台风“浣熊”的特点及成因[J].广东气象,2008,30(6):5-8.
[8]杨昌源,李刚毅,梁晓祥,等.0707号强热带风暴“帕布”强度变化探讨[J].气象研究与应用,2007,28(S2):110-112.
[9]唐文,陈见,李生艳,等.“北冕”后期路径左折和强度突然加强成因分析[J].气象研究与应用,2010,31(2):1-4.
[10]吴蔚,崔少萍.台风“莫拉非”非对称环流与强度变化的关系[J].广东气象,2012,32(5):8-11.
[11]赵彪,乔方利,王关锁.海洋表层温度对台风“蔷薇”路径和强度预测精度的影响[J],海洋学报,2012,34(4):41-52.
[12]河惠卿,王振会,金正润.不对称环流对台风强度变化的影响[J].热带气象学报,2008,24(3):249-253.
[13]蔡夏影,赵蕾,吴坤悌,等.1002号台风“康森”过程分析[J].广东气象,2011,33(4):30-34.
[14]赵雪,俞胜斌,邓文君,等.0801号台风“浣熊”的生成及强度特征[J],广东气象,2009,31(2):18-21.
[15]赵凯,张银意,唐红升.0515台风“卡努”登陆后强度衰减的诊断分析[J].台湾海峡,2008,27(3):372-375.
[16]广东省气象局《广东省天气预报技术手册》编写组.广东省天气预报技术手册[M].北京:气象出版社,2006:38.
[17]李英,陈联寿,王继志.登陆热带气旋长久维持与迅速消亡的大尺度环流特征[J].气象学报,2004,62(2):167-179.
[18]曾欣欣,王永.0601号台风登陆前后强度迅速减弱的成因分析[C]∥第三届长三角气象科技论坛论文集,北京:《中国学术期刊(光盘版)》电子杂志社,2006.
[19]梁必骐,天气学教程[M].北京:气象出版社,1995:366-367.