Experiments and Studies for Heavy Rainfall in Southern China

Ni Yunqi; Zhou Xiuji; Zhang Renhe; Wang Pengyun; Yi Qingju

Vol.17, NO.6, 2006

Article Contents

Article Navigation > Journal of Applied Meteorological Science > 2006 > 17(6): 690-704

Ni Yunqi, Zhou Xiuji, Zhang Renhe, et al. Experiments and studies for heavy rainfall in southern China. J Appl Meteor Sci, 2006, 17(6): 690-704.

Citation:

Ni Yunqi, Zhou Xiuji, Zhang Renhe, et al. Experiments and studies for heavy rainfall in southern China. J Appl Meteor Sci, 2006, 17(6): 690-704.

Ni Yunqi, Zhou Xiuji, Zhang Renhe, et al. Experiments and studies for heavy rainfall in southern China. J Appl Meteor Sci, 2006, 17(6): 690-704.

Citation:

Ni Yunqi, Zhou Xiuji, Zhang Renhe, et al. Experiments and studies for heavy rainfall in southern China. J Appl Meteor Sci, 2006, 17(6): 690-704.

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Experiments and Studies for Heavy Rainfall in Southern China

State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081

Received Date: 2006-11-27
Rev Recd Date: 2006-11-30
Publish Date: 2006-12-31

Abstract

Abstract

In the last 50 years, several generation scientists of CAMS devote to the study of heavy rainfall in China. A great achievement in the heavy rainfall studies are made. Especially in the recent 10 years, three big research programs of the state class are implemented or are being implemented in Chinese Academy of Meteorological Sciences, which focus on heavy rainfall of Southern China, including experiments and studies of heavy rainfall in Southern China and within Meiyu front in the mid-lower reaches of the Yangtze River, and heavy rainfall causing flood in South China with the study scope more comprehensive than the above two programs.Through the implementation of the above programs, three dimensional structure and formation mechanisms of the heavy rainfall in southern China and within Meiyu front in the mid-lower reaches of the Yangtze River, as well as the theories and the methods of remote sensing detection and measurement of the meso-scale heavy rainfall and the development of the meso-scale heavy rainfall numerical prediction systems with 3Dvars are all made several important achievements. Some of them are applied into operation in the operational divisions within different levels of China Meteorological Administration. As a result, economic and social benefits contribute from them in China. In the implementing of the 973 state program, the research focuses on the study and experiment for heavy rainfall systems with meso-β scale. Though these studies and experiments, wish is made that it is possible to enhance the capability of detecting and forecasting heavy rainfall in South China, and also it is hoped that important contribution could be made to strengthen the capability of reducing and protecting the disasters in China.
- heavy rainfall;
- field experiments;
- prediction system

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References(49)

Figures and Tables

图 1 华南梅雨锋上MCS的概念模型 (a) 及华南中尺度对流系统、中尺度低空急流和中尺度高空急流的耦合 (VAD为动量垂直输送) (b)

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图 2 2002年6月28日12:00 (世界时) 华南MCS在对流层上层 (100～250 hPa) 的水汽风 (单位: n mile/h) (a) 和水汽风散度 (单位: 10^-6s^-1) (b)

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图 3 中尺度暴雨系统的三维结构模型

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图 4 2003年淮河流域致洪暴雨的天气学模型

(a为沿32°～34°N 的 600 hPa 涡度 (≥0, 单位: 10^-5s^-1) 纬向-时间剖面图; b, d, f为淮河流域 (32°～34°N, 115°～120°E) 17站5—8月逐日降水量R; c为110°～120°E平均的 500 hPa 位势高度, 阴影区位势高度≤580 dagpm; e, h分别为 500 hPa 位势高度 27.5°～32.5°N平均的纬向-时间剖面图和110°～130°E平均的经向-时间剖面图; g表示110°～120°E平均的季风涌随时间演变, 箭头表示地面至 300 hPa 整层积分水汽通量 (单位: kg·m^-1·s^-1), 阴影区表示TBB值≤-10 ℃)

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图 5 2002年7月22日双多普勒雷达反演的中尺度暴雨系统的三维风场 (单位: m/s) (a) 4 km 高度水平风场, (b) 7 km 高度水平风场, (c) 20 km 处风场垂直结构, (d) 50 km 处风场垂直结构

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图 6 长江中下游梅雨锋暴雨野外试验区域分布图

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图 7 利用GRAPES-meso中尺度数值模式初始场中包含云参数信息在热启动条件得到的6 h 预报结果 (a) 雷达回波资料, (b) 数值预报结果, (c) 同时刻卫星云图

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图 8 非静力、高分辨暴雨数值模式的结构框图

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