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| 2005年6月华南致洪暴雨过程中FY-2C卫星TBB场分析 | |
| 引用本文： | 廖胜石,罗建英,蔡芗宁. 2005年6月华南致洪暴雨过程中FY-2C卫星TBB场分析[J]. 气象, 2007, 33(1): 81-86 |
| 作者姓名： | 廖胜石 罗建英 蔡芗宁 |
| 作者单位： | 1. 广西区南宁市气象局,530022 2. 广西区气象台 3. 国家气象中心 |
| 摘 要： | 利用水平分辨率1°×1°经纬度的FY-2C卫星相当黑体亮度温度（TBB）网格资料，探讨了2005年6月18—22日华南致洪暴雨过程中TBB的平均场分布特征及其演变特点，以求得华南地区对流云带（团）生消与暴雨的内在联系。结果表明：TBB场能较直观地反映暴雨过程中积云对流活动、降水的分布和强度特征，TBB低值带与华南地区强暴雨落区有很好的对应关系；强盛的西南季风对华南地区强对流云系的生成、发展和维持起了主导作用；对流云带（团）以缓慢东移为主，随着云带（团）TBB值降低，降水强度逐渐加大；TBB有明显的日变化，同时伴随着雨强的日变化。 |
| 关 键 词： | 华南地区 致洪暴雨 TBB场 |
| 收稿时间： | 2006-07-24 |
| 修稿时间： | 2006-07-242006-10-12 |
TBB Features of Torrential Rain Causing Flood in South China from 18 to 22 June,2005 |
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| Liao Shengshi,Luo Jianying and Cai Xiangning. TBB Features of Torrential Rain Causing Flood in South China from 18 to 22 June,2005[J]. Meteorological Monthly, 2007, 33(1): 81-86 | |
| Authors: | Liao Shengshi Luo Jianying Cai Xiangning |
| Affiliation: | 1. Nanning Meteorological Office, Guangxi Zhuang Autonomous Region 530022;2. Guangxi Meteorological Observatory; 3. National Meteorological Centre |
| Abstract: | With the TBB data from FY-2C satellite and the hourly observed precipitation data, the TBB features of torrential rain causing flood in South China from 18 to 22 June,2005 are studied. The results show that TBB can directly and quantitatively present the features of the intensity and distribution of the cloud system with heavy rainfall. The torrential rainfall area is basically in the lower TBB band. The rainfall intensity increases when TBB decreases. The daily variation of the rainfall intensity is in accord with that of TBB. The strong southwest monsoon plays a key role in the development and enhancement of the strong convective cloud cluster in South China. |
| Keywords: | torrential rain TBB convective cloud cluster |
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