| 华南汛期暴雨过程的潜热计算分析 |
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| 引用本文： | 廖胜石,罗建英,林开平.华南汛期暴雨过程的潜热计算分析[J].气象研究与应用,2005,26(2):4-8. |
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| 作者姓名： | 廖胜石 罗建英 林开平 |
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| 作者单位： | 1. 南宁市气象局,广西,南宁,530022
2. 广西区气象台,广西,南宁,530022 |
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| 基金项目： | 广西区气象局科技攻关项目《气象诊断量开发应用研究》资助。 |
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| 摘 要： | 利用NCEP/NCAR每日4次全球再分析1°×1°网格资料,计算了发生在华南汛期一次强暴雨过程中的潜热,并探讨了这次强暴雨过程中潜热的演变及垂直分布特征。结果表明:华南汛期暴雨过程中存在大量的潜热,其变化与暴雨强度的演变相一致。暴雨区上空强烈的对流凝结潜热在这次暴雨过程中起了主导作用。在垂直方向上对流凝结潜热的极大值呈双峰型特征,极大值所在高度随着暴雨的增强有上传的趋势。大尺度凝结潜热的极值大小及其所出现的高度层都异于对流凝结潜热。
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| 关 键 词： | 潜热 对流凝结潜热 大尺度凝结潜热 华南暴雨 |
| 文章编号： | 1001-5191(2005)02-0004-05 |
| 修稿时间： | 2005年5月9日 |
The Calculation and Analysis of Latent Heat in a Rainstorm Process during South China Flood Period |
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| LIAO Sheng-shi,LUO Jian-ying,LIN Kai-ping.The Calculation and Analysis of Latent Heat in a Rainstorm Process during South China Flood Period[J].Journal of Guangxi Meteorology,2005,26(2):4-8. |
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| Authors: | LIAO Sheng-shi LUO Jian-ying LIN Kai-ping |
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| Institution: | LIAO Sheng-shi~1,LUO Jian-ying~2,LIN Kai-ping~1 |
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| Abstract: | The latent heat of a severe rainstorm happened in South China was calculated and analyzed by using global reanalysis grid data of NCEP/NCAR for 4 times a day. The results showed that the latent heat was closely related to the evolution of the heavy rain event, which existed thorough the event. The convective latent heat was the main component and there was definite relationship between its maximum value in vertical distribution and the development of the rainstorm as well as the levels of the maximum values occurred. The vertical distribution of Large-scale stable latent was different from that of convective latent. |
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| Keywords: | Latent heat Convective latent heat Large-scale latent heat South China rainstorm |
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