COMPARISON STUDY ON PRECIPITATION、CLOUD AND LATENT HEAT CHARACTERISTICS OVER THE SOUTH CHINA SEA AND ITS SURROUNDING AREAS BASED ON TRMM
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摘要: 利用1998—2013年热带测雨卫星（TRMM）3A12资料，对南海及其周边地区降水、云和潜热的三维特征及其变化进行了对比研究，把南海及其周边地区分为四个区域：华南地区、中南半岛、马来群岛、南海。结果表明：（1）地面降水率EOF分析的第一、二模态方差贡献率分别为57.16%和8.72%，第一模态向量场均为正值，降水呈现南多北少的分布特征；第二模态向量场体现了降水变化南北反相的特征，马来群岛降水变化与其他三个区域反相。从两个模态时间系数序列看出，1998—2005年整个区域降水总体减少，区域降水北部增多南部减少；2005—2013年整个区域降水总体增多，区域降水南部增多北部减少。（2）南海及其周边地区降水夏秋季多，春冬季少，降水中心春夏季北移，秋冬季南撤，其中马来群岛夏季降水最少，冬季最多；其它三个区域都是夏季降水最多，华南和中南半岛冬季最少，南海春季最少。（3）赤道附近对流降水为主，23 °N以北区域层云降水为主，5~23 °N之间区域两种类型降水比例随季节变化，其中陆地降水比例随季节变化明显，特别是华南地区陆地夏季对流降水比例大于50%，冬季层云降水比例大于80%；海洋对流降水所占比例普遍大于50%，随季节变化小。（4）云冰、云水含量水平分布大值区与降水大值区相对应；二者随高度先增加后减少，云冰在13 km高度达到最大值，云水在2.5 km高度达到最大。春冬季，马来群岛云冰含量最大；夏秋季，南海云冰含量最大。云水含量在四个季节都以南海最大。（5）潜热加热率水平分布大值区与降水大值区相对应；随高度呈双峰分布，峰值分别出现在1~2 km高度和4 km高度处，春冬季马来群岛潜热加热率最大。Abstract: By using 1998—2013 the Tropical Rainfall Measurement Mission (TRMM)data 3A12, the three-dimensional structure and seasonal variability of the rainfall, cloud, and latent heat over the South China Sea (SCS) and its surrounding areas is investigated. For comparison, the SCS is sub-divided into four parts: the South China Region, Indo-China Peninsula, Malaysia; SCS. The results show that:(1) The rainfall distribution is highly non-uniform and changes from season to season. Overall, the precipitation is much more in summer and autumn while less in spring and winter. But in Malaysia, it is most in winter and lest summer. While in other three areas, it is most in summer. But the precipitations of both the SCS and Indo-China Peninsula reach their minimums in winter while the precipitation of the SCS reaches the minimum in spring. (2) EOF analysis shows that the first mode variance contribution rate is 57.16%, the precipitation in southern areas is higher than that in northern areas. The second mode variance contribution rate is 8.72%, shows that the precipitations of the south and the north change inversely. (3) The equatorial area is mainly distributed with convective precipitation. To the north of 23 °N, stratiform precipitation is dominant. Over the region between 5~23 °N, the precipitation ratio of two types varies with the seasons, which is obvious over land area, especially in South China, the proportion of convective precipitation over land area in summer is greater than 50%, and the proportion of stratiform precipitation in winter is greater than 80%; The proportion of convective precipitation over ocean area is generally greater than 50%, and its seasonal variation is smaller. (4) The horizontal distributions of cloud ice, cloud water, and latent heat are similar to the horizontal distribution of surface precipitation. The vertical distributions of cloud ice and cloud water in the four regions are different. Both cloud ice and cloud water increase first and then decrease with height. And cloud ice reaches the maximum at about 13km; cloud water reaches the maximum at about 2.5 km. In spring and winter, the maximum of cloud ice is distributed mainly in the Malaysian area. In summer and autumn, the maximum of cloud ice is distributed in the SCS. These four seasons all have a larger content of cloud water in the SCS. (5) Latent heat profiles have a similar bimodal structure: the first peak is at about 1~2 km and the second peak is at about 4 km. In spring and winter, the latent heat in Malaysia is much higher. And in summer and autumn, the latent heat in SCS is much higher.
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Key words:
- TRMM /
- precipitation /
- cloud /
- latent heat /
- the SCS
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表 1 四个区域四季平均对流降水率 单位：mm/h。
地区 春季 夏季 秋季 冬季 华南地区 0.054 7 0.127 7 0.044 9 0.012 5 中南半岛 0.098 0 0.135 1 0.096 3 0.011 4 南海 0.054 7 0.140 3 0.135 1 0.056 9 马来群岛 0.116 2 0.089 4 0.110 4 0.129 6 
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表 2 四个区域四季平均层云降水率 单位：mm/h。
地区 春季 夏季 秋季 冬季 华南地区 0.061 4 0.110 6 0.038 6 0.016 2 中南半岛 0.060 9 0.137 1 0.090 2 0.007 9 南海 0.046 7 0.130 3 0.127 3 0.054 0 马来群岛 0.089 6 0.070 3 0.087 9 0.110 5
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[1] YANAI M, TOMITA T. Seasonal and interannual variability of atmospheric heat sources and moisture sinks as determined from NCEP/NCAR reanalysis[J]. J Clim, 1998, 11(3): 463-482. [2] LI W P. Moisture flux and water balance over the South China Sea during late boreal spring and summer[J]. Theore App Climatol, 1999, 64: 179-187. [3] ROUNALD B S, JUSTIN R M, ALISON D N, et al. Orographic Precipitation in the Tropics[J]. Bull Amer Meteor Soc, 2012, 93(10):1567-1579. [4] 金啟华, 何金海, 祝从文.亚洲南部地区海陆分布对亚洲冬季风影响的数值试验[J].海洋学报, 2007, 29(2): 34-44. [5] 陈晶华, 陈隆勋.亚洲南部的海陆分布对亚洲夏季风形成的作用[J].应用气象学报, 1991, 2(4): 355-361. [6] 江静, 钱永普.南海地区降水的时空特征[J].气象学报, 2000, 58(1): 60-69. [7] 宋明坤, 李耀东, 胡亮.夏季风爆发前后南海地区降水性质的变化[J].热带气象学报, 2013, 26(3): 339-348. [8] 冯瑞权, 王安宇, 吴池胜, 等.南海夏季风建立的气候特征Ⅰ--40年平均[J].热带气象学报, 2001, 17(4): 345-354. [9] 林建恒, 王安宇, 冯瑞权, 等.南海夏季风维持期的气候特征Ⅰ--40年平均[J].热带气象学报, 2005, 21(2): 113-122. [10] 冯瑞权, 王安宇.梁建茵, 等.南海夏季风撤退期的气候特征Ⅰ--40年平均[J].热带气象学报, 2007, 23(1): 7-13. [11] 乔云亭, 简茂球, 罗会邦.南海夏季风降水的区域差异及其突变特征[J].热带气象学报, 2002, 18(1): 38-44. [12] FU Y F, LIN Y H. Seasonal Characteristics of Precipitation in 1998 over East Asia as derived from TRMM PR[J]. Adv Atmos Sci, 2003, 20(4): 511-520. [13] 傅云飞, 宇如聪, 徐幼平, 等. 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, 2003, 61(4): 421-430. [14] 陈举, 施平, 王东晓, 等. TRMM卫星降雨雷达观测的南海降雨空间结构和季节变化[J].地球科学进展, 2005, 20(1): 29-35. [15] LIU Q, FU Y F. An Examination of summer precipitation over Asia Based on TRMM/TMI[J]. Sci China Earth Sci, 2007, 50(3): 430-441. [16] 李锐, 傅云飞, 赵萍.热带测雨卫星的测雨雷达对97/98年El Nino后期热带太平洋降水结构的研究[J].大气科学, 2005, 29(2): 225-235. [17] SOROOSHIAN S, GAO X, HSU K, et al. Diurnal variability of tropical rainfall retrieved from combined GOES and TRMM satellite information[J]. J Clim, 2002, 15(9): 983-1001. [18] MAO J Y, WU G X. Diurnal variations of summer precipitation over the Asian monsoon region as revealed by TRMM satellite data[J]. Sci China Earth Sci, 2012, 55(4): 554-566, doi: 10. 1007/s11430-011-4315-x [19] 何会中, 程明虎, 周凤闲. 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, 2006, 3(3): 491-503. [20] LI W B, LUO C, WANG D X, LEI T. Diurnal variations of precipitation over the South China Sea[J]. Meteorol Atmos Phys, 2010, 109: 33-46, doi:10. 1007/s00703-010-0094-8. [21] LI W B, WANG D X, LEI T, et al. High-frequency atmospheric variability over South China Sea as depicted by TRMM and Quik SCAT[J]. Acta Oceanologica Sinica, 2011, 30(2):46-52. [22] LI J N, ZHENG Y P, LI F Z, et al. The structural characteristics of precipitation in Asian-Pacific's three monsoon regions measured by tropical rainfall measurement mission[J]. Acta Oceanologica Sinica, 2014, 33(3): 111-117. [23] LI J N, YANG C F, LI F Z, et al. A comparison of summer precipitation structures over the South China Sea and the East China Sea based on tropical rainfall measurement mission[J]. Acta Oceanologica Sinica, 2013, 32(11):41-49. [24] 牛晓蕾, 李万彪, 朱元竞. TRMM资料分析热带气旋的降水与水汽、潜热的关系[J].热带气象学报, 2006, 22(2):113-120. [25] 王振会. TRMM卫星测雨雷达及其应用研究综述[J].气象科学, 2001, 21(4): 491-500. [26] KUMMEROW C D, OLSON W S, GIGLIO L. A simplified scheme for obtaining precipitation and vertical hydrometeor profiles from passive microwave sensors[J]. IEEE Trans Geosci Remote Sensing, 1996, 34: 1213-1232. [27] KUMMEROW C D, HONG Y, OLSON W S, et al. The evolution of the Goddard Profiling Algorithm(GPROF) for rainfall estimation from passive microwave sensors[J]. J Appl Meteorol, 2001, 40: 1801-1820. [28] SHEN X Y, WANG Y, LI X F. Effect of vertical wind shear and cloud radiative processes on responses of rainfall to the large-scale forcing during pre-summer heavy rainfall over southern china[J]. Royal Meteorological Society, 2011, 137:236-249. [29] VARIKODEN H, SAMAH A A, BABU C A. Spatial and temporal characteristics of rain intensity in the peninsular Malaysia using TRMM rain rate[J]. Journal of Hydrology, 2010, 387(3): 312-319. [30] LIU P, LI C Y, WANG Y, et al. Climatic characteristics of convective and stratiform precipitation over the Tropical and Subtropical areas as derived from TRMM PR[J]. Sci China Earth Sci, 2013, 56(3): 375-385. [31] 郑崇伟, 周林.近10年南海海波特征分析及波浪能研究[J].太阳能学报, 2012, 33(8): 1349-1356. [32] 李兴宇, 郭学良, 朱江.中国地区空中云水资源气候分布特征及变化趋势[J].大气科学, 2008, 32(5): 1094-1106. [33] 胡朝霞, 雷恒池, 郭学良, 等.降水性层状云系结构和降水过程的观测隔离与模拟研究[J], 大气科学, 2007, 31(3): 425-439 [34] 傅云飞, 刘奇, 自勇, 等.基于TRMM卫星探测的夏季青藏高原降水和潜热分析[J].高原山地气象研究, 2008, 28(1): 8-18. -
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