基于TRMM资料的高原涡与西南涡引发强降水的对比研究

蒋璐君; 李国平; 王兴涛

doi:10.3878/j.issn.1006-9895.1407.13260

基于TRMM资料的高原涡与西南涡引发强降水的对比研究

doi: 10.3878/j.issn.1006-9895.1407.13260

1.
成都信息工程学院大气科学学院, 成都610225;江西省气象科学研究所, 南昌330046
2.
成都信息工程学院大气科学学院, 成都610225
3.
宜昌三峡机场, 宜昌443007

基金项目: 国家自然科学基金项目91337215、41175045, 国家重点基础研究发展计划(973计划)项目2012CB417202, 公益性行业(气象)科研专项GYHY201206042

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出版历程
- 收稿日期: 2013-09-10
- 修回日期: 2014-07-04

Comparative Study Based on TRMM Data of the Heavy Rainfall Caused by the Tibetan Plateau Vortex and the Southwest Vortex

1.
College of Atmospheric Sciences, Chengdu University of Information Technology, Chengdu 610225;Meteorological Research Institute of Jiangxi Province, Nanchang 330046
2.
College of Atmospheric Sciences, Chengdu University of Information Technology, Chengdu 610225
3.
Yichang Sanxia Airport, Yichang 443007

摘要

摘要: 利用TRMM(Tropical Rainfall Measuring Mission)卫星探测结果结合NCEP(National Centers for Environmental Prediction)再分析资料, 对2007年7月17日四川、重庆地区的一次西南涡强降水系统和2008年7月21日四川东部的东移高原涡强降水系统的三维结构特征、雨顶高度以及降水廓线特征进行对比分析研究。结果表明:(1)两次降水过程均是发生在西南—东北向的水汽辐合带中, 且降水云群均位于低涡的东南方。(2)两次强降水在水平结构上均表现为由一个主降水雨带和多个零散降水云团组成, 高原涡强降水过程比西南涡强降水的降水强度和范围都要大。降水雷达探测到的两个中尺度降水系统均以降水范围大、强度弱的层云降水为主, 但对流性降水对总降水量的贡献较大, 其中西南涡降水中对流降水所占比例比高原涡的大, 对总降水率的贡献也大。(3)垂直结构上:两次强降水的雨顶高度均是随地表雨强的增加而增加, 且最大雨顶高度接近16 km, 但西南涡强降水中的雨顶高度比高原涡更高, 说明西南涡降水过程中对流旺盛程度强于高原涡。(4)两次强降水中雨滴碰并增长过程以及凝结潜热的释放主要集中在8 km以下, 但8 km以上西南涡降水变化大于高原涡, 且前者在8~12 km高度层的降水量对总降水量贡献百分比大于后者。
- 西南涡 /
- 高原涡 /
- TRMM卫星 /
- 降水结构
Abstract: A comparative study has been made on the three dimensional structures, distribution of the rain heights, and precipitation profiles of two precipitation systems generated by the southwest vortex (SWV) which occurred in Sichuan and Chongqing on July 17, 2007 and the Tibetan Plateau vortex (TPV) which occurred in the western part of Sichuan on July 21, 2008, respectively.The study is based on Tropical Rainfall Measuring Mission (TRMM) data, combined with the National Centers for Environmental Prediction (NCEP) reanalysis data.Results indicate that:(1) Both precipitation processes occurred in a southwest-northeast direction in the moisture convergence zone, and clouds were located in the southeast of the SWV.(2) Horizontally, the two precipitations processes consisted of a main precipitation rain band and several scattered precipitation clouds, and the rainfall intensity and scope of the TPV were much larger than those of the SWV.The common feature of these two mesoscale precipitation systems, detected by precipitation radar (PR), is that most of the precipitation was, which is characterized by a large scope and weak precipitation intensity.However, the contribution of convective rains to the total rainfall was much larger, and the ratio and contribution of convective precipitation to the total rainfall in the SWV was larger than it was in the TPV.(3) Vertically, the rain height in the two heavy precipitation systems increased with an increase in the surface precipitation rate, and the maximum rain height was close to 16 km.However, the rain height in the SWV was higher than that of the TPV, indicating weaker convective activity in the TPV.(4) The progress of collision and growth of raindrops and the latent heat release mainly occurred below a height of 8 km.But the change in the SWV precipitation was greater than that of TPV, and the SWV showed a greater total precipitation contribution than the TPV at a height layer of 8-12 km.
- Southwest vortex /
- Tibetan Plateau vortex /
- TRMM satellite /
- Precipitation structure

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参考文献(34)

[1]	Awaka J, Iguchi T, Okamoto K.1998.Early results on rain type classification by the tropical rainfall measuring mission (TRMM) precipitation radar[C]// Proceedings of the 8th URSI Commission F Open Symposium.Aveiro, Portugal, 134-146.
[2]	陈忠明, 徐茂良, 闵文彬, 等.2003.1998年夏季西南低涡活动与长江上游暴雨[J] 高原气象, 22 (2):162-167.Chen Zhongming, Xu Maoliang, Min Wenbin, et al.2003.Relationship between abnormal activities of southwest vortex and heavy rain the upper reach of Yangtze River during summer of 1998[J].Plateau meteorology (in Chinese), 22 (2):162-167.
[3]	陈忠明, 闵文彬, 缪强, 等.2004.高原涡与西南涡耦合作用的个例诊断[J].高原气象, 23 (1):75-80.Chen Zhongming, Min Wenbin, Miao Qiang, et al.2004.A case study on coupling interaction between plateau and southwest vortexes[J].Plateau Meteorology (in Chinese), 23 (1):75-80.
[4]	傅云飞, 宇如聪, 徐幼平, 等.2003.TRMM测雨雷达和微波成像仪对两个中尺度特大暴雨降水结构的观测分析研究[J].气象学报, 61 (4):421-431.Fu Yunfei, Yu Rucong, Xu Youping, et al.2003.Analysis on precipitation structures of two heavy rain cases by using TRMM PR and TMI[J].Acta Meteorologica Sinica (in Chinese), 61 (4):421-431.
[5]	傅云飞, 冯静夷, 朱红芳, 等.2005.西太平洋副热带高压下热对流降水结构特征的个例分析[J].气象学报, 63 (5):750-761.Fu Yunfei, Feng Jingyi, Zhu Hongfang, et al.2005.Structures of a thermal convective precipitation system happened in controlling of the western subtropical pacific high[J].Acta Meteorologica Sinica (in Chinese), 63 (5):750-761.
[6]	傅云飞, 刘栋, 王雨, 等.2007.热带测雨卫星综合探测结果之“云娜”台风降水云与非降水云特征[J].气象学报, 65 (3):316-327.Fu Yunfei, Liu Dong, Wang Yu, et al.2007.Characteristics of precipitating and non-precipitating clouds in typhoon ranan as viewed by TRMM combined measurements[J].Acta Meteorologica Sinica (in Chinese), 65 (3):316-327.
[7]	傅云飞, 曹爱琴, 李天奕, 等.2012.星载测雨雷达探测的夏季亚洲对流与层云降水雨顶高度气候特征[J].气象学报, 70 (3):436-451.Fu Yunfei, Cao Aiqin, Li Tianyi, et al.2012.Climatic characteristics of the storm top altitude for the convective and stratiform precipitation in summer Asia based on measurements of the TRMM precipitation on radar[J].Acta Meteorologica Sinica (in Chinese), 70 (3):436-451.
[8]	何会中, 程明虎, 周风仙.2006.0302号(鲸鱼)台风降水和水粒子空间分布的三维结构特征[J].大气科学, 30 (3):491-503.He Huizhong, Cheng Minghu, Zhou Fengxian.2006.SD structure of rain and cloud hydrometeors for typhoon Kujira[J].Chinese Journal of Atmospheric Sciences (in Chinese), 30 (3):491-503.
[9]	何文英, 陈洪滨.2006.TRMM卫星对一次冰雹降水过程的观测分析研究[J].气象学报, 64 (3):364-375.He Wenying, Chen Hongbin.2006.Analyses of evolutional characteritics of a hallstorm precipitation from TRMM observations[J].Acta Meteorologica Sinica (in Chinese), 64 (3):364-375.
[10]	Houze R A Jr.1982.Cloud clusters and large-scale vertical motions in the tropics[J].J.Meteor.Soc.Japan, 60 (1):396-410.
[11]	Houze R A Jr.1989.Observed structure of mesoscale convective systems and implications for large-scale heating[J].Quart.J.Roy.Meteor.Soc., 115 (487):425-461.
[12]	Kummerow C, Bames W, Kozu T, et al.1998.The tropical rainfall measuring mission (TRMM) sensor package[J].J.Atmos.Oceanic Technol., 15 (3):809-817.
[13]	李国平, 蒋静.2000.一类奇异孤波解及其在高原低涡结构分析中的应用[J].气象学报, 58 (4):447-455.Li Guoping, Jiang Jing.2000.A type of singular solitary wave and its application of structure analysis of the Tibetan Plateau vortex.[J].Acta Meteorologica Sinica, (in Chinese) 58 (4):447-455.
[14]	李锐, 傅云飞, 赵萍.2005.热带测雨卫星的测雨雷达对1997/1998 EI Niño 后期热带太平洋降水结构的研究[J].大气科学, 29 (2):225-235.Li Rui, Fu Yunfei, Zhao Ping.2005.Characteristics of rainfall structure over the tropical pacific during the later period of 1997/1998 EI Niño derived from TRMM PR observations[J].Chinese Journal of Atmospheric Sciences (in Chinese), 29 (2):225-235.
[15]	李德俊, 李跃清, 柳草, 等.2009.利用TRMM卫星资料对“07.7”川南特大暴雨的诊断研究[J].暴雨灾害, 28 (3):235-240.Li Dejun, Li Yueqing, Liu Cao, et al.2009.Study on the “07.7” mesoscale torrential rain in South Sichuan based on TRMM observations[J].Torrential Rain and Disasters (in Chinese), 28 (3):235-240.
[16]	李德俊, 李跃清, 柳草, 等.2010.基于TRMM卫星探测对宜宾夏季两次暴雨过程的比较分析[J].气象学报, 68 (4):559-568.Li Dejun, Li Yueqing, Liu Cao, et al.2010.Comparative analysis between two summer heavy rain events in Yibin based on the TRMM data[J].Acta Meteorologica Sinica (in Chinese), 68 (4):559-568.
[17]	Liu G S, Fu Y F.2001.The characteristics of tropical precipitation profiles as inferred from satellite radar measurements[J].J.Meteor.Soc.Japan, 79 (1):131-143.
[18]	Mao J Y, Wu G X.2012.Diuranal variations of summer precipitation over the Asian monsoon region as revealed by TRMM satellite data[J].Sci.China Earth Sci., 55 (4):554-566.
[19]	钱正安, 顾弘道, 颜宏, 等.1990.四川“81.7”特大暴雨和西南涡的数值模拟[J].气象学报, 48 (4):415-423.Qian Zheng'an, Gu Hongdao, Yan Hong, et al.1990.Numerical simulations of extremely intense rainstorm and southwest vortex over Sichuan in July of 1981[J].Acta Meteorologica Sinica (in Chinese), 48 (4):415-423.
[20]	乔全明, 张雅高.1994.青藏高原天气学[M].北京:气象出版社, 156.Qiao Quanming, Zhang Yagao.1994.Synoptic meteorology of the Tibetan Plateau (in Chinese)[M].Beijing:China Meteorological Press, 156.
[21]	宋雯雯, 李国平, 唐钱奎.2012.加热和水汽对两例高原低涡影响的数值试验[J].大气科学, 36 (1):117-129.Song Wenwen, Li Guoping, Tang Qiankui, 2012.Numerical simulation of the effect of heating and water vapor on two cases of plateau vortex[J].Chinese Journal of Atmospheric Sciences (in Chinese), 36 (1):117-129.
[22]	Steiner M, Houze R A Jr, Yuter S E.1995.Climatological characterization of three-dimensional storm structure from operational radar and rain gauge data[J].J.Appl.Meteor., 34 (9):1978-2007.
[23]	Simpson J, Adler R F, North G R.1988.A proposed Tropical Rainfall Measuring Mission (TRMM) satellite[J].Bull.Amer.Meteor.Soc., 69 (3):278-295.
[24]	Schumacher C, Houza R A Jr.2003.Stratiform rain in the tropics as seen by the TRMM precipitation radar[J].J.Climate, 16 (11):1739-1756.
[25]	陶诗言.1980.中国之暴雨[M].北京:科学出版社, 36.Tao Shiyan.1980.The Torrential Rain in China (in Chinese)[M].Beijing:Science Press, 36.
[26]	Toracinta E R, Cecll D J, Zipser E J, et al.2002.Radar, passive microwave, and lightning characteristics of precipitating systems in the tropics[J].Mon.Wea.Rev., 130 (4):802-824.
[27]	Tao S Y, Ding Y H, 1981.Observational evidence of the influence of the Qinghai-Xizang (Tibet) Plateau on the occurrence of heavy rain and severe convection storms in China[J].Bull.Amer.Meteor.Soc., 62 (1):23-30.
[28]	Wang B, Orlanski I.1987.Study of a heavy rain vortex formed over the eastern flank of the Tibetan Plateau[J].Mon.Wea.Rev., 115 (7):1370-1393.
[29]	Wang W, Kuo Y, Thomas T W.1993.A diabatically driven mesoscale vortex in the lee of the Tibetan Plateau[J].Mon.Wea.Rev., 121 (9):2542-2561.
[30]	于波, 林永辉.2008.引发川东暴雨的西南低涡演变特征个例分析[J].大气科学, 32 (1):141-154.Yu Bo, Lin Yonghui.2008.A case study of southwest vortex causing heavy rainfall in eastern Sichuan basin[J].Chinese Journal of Atmospheric Sciences (in Chinese), 32 (1):141-154.
[31]	袁铁, 郄秀书.2010.基于TRMM卫星对一次华南飑线的闪电活动及其降水结构的关系研究[J].大气科学, 34 (1):58-70.Yuan Tie, Qie Xiushu.2010.TRMM-based study of lightning activity and its relationship with precipitation structure of a squall line in South China[J].Chinese Journal of Atmospheric Sciences (in Chinese), 32 (1):141- 154.
[32]	游然, 卢乃锰, 邱红, 等.2011.用PR资料分析热带气旋卡特里娜降水特征[J].应用气象学报, 22 (2):203-213.You Ran, Lu Naimeng, Qiu Hong, et al.2011.Precipitation characteristics in tropical cyclone Katrina using TRMM precipitation radar[J].J.Appl.Meteor.Science (in Chinese), 22 (2):203-213.
[33]	Yokoyama C, Takayabu Y N.2008.A statistical study on rain characteristics of tropical cyclones using TRMM satellite data[J].Mon.Wea.Rev., 136 (10):3848-3862.
[34]	Zhou T J, Yu R C, Chen H M, et al.2008.Summer precipitation frequency, intensity, and diurnal cycle over China:A comparison of satellite data and rain gauge observation[J].J.Climate, 21 (16):3997-4010.