利用NCEP/NCAR再分析资料、中国气象局热带气旋年鉴资料,对19492013年中国近海突然增强台风进行了统计分析,表明近海台风突然增强是一个小概率事件,占近海台风总数的10. 19%。近海突增台风存在年代际变化,在20世纪5070年代出现一个高峰,60年代达最高值,2000年以后明显减少;近海突增台风存在明显的时空分布特征,发生在410月,以8、9月最多;多数出现在南海,在黄海也有发生。对近海突增台风的大尺度环流特征作动态合成分析表明,突增台风通常处于副热带高压脊西南部;温度场上被暖脊包围;水汽输送上有持续的水汽输入台风环流;海温场上处高海温海域,同时,处于弱风垂直切变环境中,有利于台风突然增强。统计结果进一步表明,高海温、弱风垂直切变环境下,台风强度突增明显,其比例占所有突增台风总数的71. 4%;当仅处于低海温环境下或仅处于强风垂直切变环境下,突然增强台风现象极少,比例都是所有突增台风总数的2. 9%;但当高海温、强风垂直切变环境下,台风仍会出现突然增强现象,占所有突增台风总数的2. 9%,在低海温、弱风垂直切变极端环境下,不出现突然增强台风。
Based on NCEP/NCAR Reanalysis data and CMA tropical cyclone Yearbook information(1949 2013),rapid intensification of typhoons over coastal water of China are statistical analyzed.The statistical results suggest that the rapid intensification of coastal typhoons are small probability events which with 10.07% for rapid intensification.It also has distinct temporal and spatial characteristics.Composite data analysis and dynamic diagnosis are employed to reveal the circulation characteristics of the phenomena.The results of height field analysis show that the rapid intensification of typhoon is related with the subtropical high situated to the north of it.In the temperature field,there are always warm ridges encompassing the typhoons during their rapid intensification.In terms of water vapor transportation,the moisture supply to the typhoon of rapid intensification is abundant.As to the sea temperature field,the rapid intensification occurs over warm sea surface temperature(SST) region.At the same time,the low VWS will make a contribution to rapid intensification of tropical cyclones.Statistics showed that high SST configuration,low vertical wind shear and typhoon strength spurt,71.4% of the total accounted for all the rapid intensification in typhoons.But when high SST configuration,high vertical wind shear and low SST,middle vertical wind shear configuration,these two typhoons still appear rapid intensification,accounted for 2.9% of all rapid intensification in total number of typhoons over coastal water of China.
[1]Elsberry R L,Charles A D,Patrick A H.2011.Tropical cyclone formation and rapid intensity changes environmental control versus mesoscsle/convective sccale processes[C].International workshop on tropical cyclone unusual behavior,9-16.
[2]Elsberry R L,Holland G J,Gerrish H,et al.1992.Is there any hope for tropical cyclone intensity prediction? A panel discussion[J].Bull Amer Meteor Soc,73(3):264-275.
[3]Elsberry R L,Jeffries R A.1996.Vertical wind shear influences on tropical cyclone formation and intensification during TCM-92 and TCM-93[J].Mon Wea Rev,124(7):1374-1387.
[4]Elsberry R L.1987.A global view of tropical cyclones[M].California:Published by Office of Naval Research.
[5]Gallina G M.2002.Environmental vertical wind shear and tropical cyclone intensity change utilizing enhanced satellite derived wind information[M].Wisconsin:University of Wisconsin-Madison.
[6]Holliday C R,Thompson A H.1979.Climatological characteristics of rapidly intensifying typhoons[J].Mon Wea Rev,1979,107(8):1022-1034.
[7]Merrill R T.1988.Environmental influences on hurricane intensification[J].J Atmos Sci,45(11):1678-1687.
[8]Ramage C S.1959.Hurricane development[J].J Meteor,16(3):227-237.
[9]Zehr R M.1992.Tropical cyclogenesis in the western North Pacific[D].Fort Collins:Colorado State University.
[10]Zehr R M.2003.Environmental vertical wind shear with Hurricane Bertha(1996)[J].Wea Forecasting,18(2):345-356.
[11]Zeng Zhihua,Chen Lianshou,Wang Yuqing.2008.An observational study of environmental dynamical control of tropical cyclone intensity in the Atlantic[J].Mon Wea Rev,136:3307-3322.
[12]Zeng Zhihua,Wang Yuqing,Wu C C,et al.2007.Environmental dynamical control of tropical cyclone intensity-an observational study[J].Mon Wea Rev,135(1):38-59.
[13]陈联寿,丁一汇.1979.西太平洋台风概论[M].北京:科学出版社.Chen Lianshou,Ding Yihui.1979.Introduction to the Western Pacific Typhoon[M].Beijing:Science Press.
[14]陈联寿,端义宏,宋丽莉,等.2012.台风预报及其灾害[M].北京:气象出版社.Chen Lianshou,Duan Yihong,Song Lili,et al.2012.Typhoon Forecast and Disaster[M].Beijing:China Meteorological Press.
[15]陈联寿,徐祥德,罗哲贤.2002.热带气旋动力学引论[M].北京:气象出版社.Chen Lianshou,Xu Xiande,Luo Zhexian.2002.Introduction to Tropical Cyclone Dynamics[M].Beijing:China Meteorological Press.
[16]陈联寿.2006.热带气旋研究和业务预报技术的发展[J].应用气象学报,17(6):672-681.Chen Lianshou.2006.The evolution on research and operational forecasting techniques of tropical cyclones[J].J Appl Meteor Sci,17(6):672-681.
[17]陈瑞闪.2002.台风[M].福建:福建科学技术出版社.Chen Ruishan.2002.Typhoon[M].Fujian:Fujian Science & Technology Publishing House.
[18]冯锦全,陈多.1995.我国近海热带气旋强度突变的气候特征分析[J].热带气象学报,11(1):36-42.Feng Jinquan,Chen Duo.1995 Analyses of climatic characteristics accompanying sudden intensity changes in offshore tropical cyclones in China[J].J Trop Meteor,11(1):36-42.
[19]李英,陈联寿,徐祥德.2005.水汽输送影响登陆热带气旋维持和降水的数值试验[J].大气科学,29(1):92-98.Li Ying,Chen Lianshou,Xu Xiangde.2005.Numerical experiments of the impact of moisture transportation on sustaining of the landfalling tropical cyclone and precipitation[J].Chinese J Atmos Sci,29(1):92-98.
[20]李英.2004.登陆热带气旋维持机制的研究[D].北京:中国气象科学研究院,25-57.Li Ying.2004.Study on the maintenance mechanism of landing tropical cyclone[M].Beijing:Chinese Academy of Meteorological Sciences,25-57.
[21]沈瑾,楚荣忠,赵果,等.2011.台风莫拉克的偏振参量演变分析[J].高原气象,30(3):809-816.Shen Jin,Chu Rongzhong,Zhao Guo,et al.2011.Evolution of polarimetric parameters in typhoon 'Morakot'[J].Plateau Meteor,30(3):809-816.
[22]寿绍文,姚秀萍.1995.爆发性发展台风合成环境场的诊断分析[J].大气科学,19(4):488-493.Shou Shaowen,Yao xiuping.1995.A diagnostic study of the composite ambient fields of the explosively developing typhoons[J].Chinese J Atmos Sci,19(4):488-493.
[23]温颖,赵阳,赵果,等.2015.台风"莫拉克"登陆过程的闪电活动与雷达回波特征[J].高原气象,34(3):832-841.Wen Ying,Zhao Yang,Zhao Guo,et al.2015.Characteristics of lightning activity and radar reflectivity during typhoon'Morakot'landfall[J].Plateau Meteor,34(3):832-841.DOI:10.7522/j.issn.1000-0534.2015.0036.
[24]吴蓁,范学峰,郑世林,等.2008.台风外围偏东气流中的暴雨及其等熵位涡特征[J].高原气象,27(3):584-595.Wu Zhen,Fan Xuefeng,Zheng shilin,et al.2008.Rainstorm in the east airflow of typhoon periphery and its isentropic potential vorticity character[J].Plateau Meteor,27(3):584-595.
[25]武麦凤,王桂梅,曹玲玲,等.2014.台风"洛克"远距离引发陕西暴雨过程的成因分析[J].高原气象,33(5):1297-1304.Wu Maifeng,Wang Guimei,Cao Lingling,et al.2014.Analysis on rainstorm in shaanxi distance caused by typhoon'Roke'[J].Plateau Meteor,33(5):1297-1304.DOI:10.7522/j.issn.1000-0534.2013.00072.
[26]阎俊岳.1996.近海热带气旋迅速加强的气候特征[J].应用气象学报,7(1):28-34.Yan Junyue.1996.Climatological characteristics of rapidly intensifying tropical cyclones over the offshore of China[J].Quart J Appl Meteor,7(1):28-34.
[27]杨文霞,冉令坤,洪延超,等.2010.新动力因子在登陆台风与降水移动中的诊断研究[J].高原气象,29(2):371-381.Yan Wenxia,Ran Lingkun,Hong Yanchao,et al.2010.A new dynamic factor and its dignosis on landfalling typhoon and rain belt moving[J].Plateau Meteor,29(2):371-381.
[28]叶成志,李呁英,黎祖贤.2009.两次严重影响湖南的登陆台风水汽场特征数值模拟[J].高原气象,28(1):98-107.Ye Chengzhi,Li Yunying,Li Zuxian.2009.Numerical study on the water vapor transports of the two landfalling cyclones affecting Hunan province[J].Plateau Meteor,28(1):98-107.
[29]郑峰,钟建锋,娄伟平.2010.圣帕(0709)台风外围温州强龙卷风特征分析[J].高原气象,29(2):507-512.Zheng Feng,Zhong Jianfeng,Lou Weiping.2010.Analysis of a tornado in outer-region of the super typhoon ‘Sepat’ in 2007[J].Plateau Meteor,29(2):507-512.
[30]郑峰,钟建锋,张灵杰.2012.超强台风"圣帕"引发温州类龙卷的特征分析[J].高原气象,31(1):232-237.Zheng Feng,Zhong Jianfeng,Zhang Lingjie.2012.Analysis on a severe storm of Wenzhou similar tornado in the outer-region of the super typhoon 'Sepat'[J].Plateau Meteor,31(1):232-237.
[31]朱晓金,陈联寿.2011.我国近海热带气旋迅速加强活动特征及其与ENSO的关系[J].北京大学学报:自然科学版,47(1):52-58.Zhu Xiaojin,Chen Lianshou.2011.Climatological Characteristics of rapidly intensifying tropical cyclone over the coastal waters of China and the relationship with ENSO[J].Acta Scientiarum Naturalium Universitatis Pekinensis,47(1):52-58.
