| 摘要: |
| 本文收集了2006～2016年湖南省97个国家气象站逐日平均风速风向、最大风速风向资料，根据城镇天气预报对风的预报要求，分析了湖南省日平均风速、日最大风速3级及以上风以及日最大风速6级及以上风的气候特征，结果表明：①湖南省年日平均风速为1.63m/s，呈现逐年震荡增强趋势，夏季最大，秋季最小；②湘西北、湘西地区日平均风速较小，湘东北、湘中以东、湘西南地区较大；③日最大风速3级以上日数呈逐年减少趋势，春夏季多发，秋冬季少发，偏南风占到所有风向中的59%；④岳阳东部、长株潭、永州、郴州大部为日最大风速3级以上高频区，湘西北、湘中偏西南一带、衡阳市西部到邵阳市一带为低频区；⑤日最大风速6级以上日数呈增长趋势，春夏季多，空间分布具有离散性，概率由大到小依次为南岳、郴州、冷水滩、江华、常德、韶山、长沙、新宁和泸溪，将6级以上区域性大风进行了冷空气影响、低压大风、雷暴大风、台风影响四种类型的划分，并建立了概念模型。 |
| 关键词: 风速分析；气候特征；概念模型 |
| DOI： |
| 投稿时间：2018-07-27修订日期：2018-11-01 |
| 基金项目: |
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| Time-space climatic characteristics of wind in Hunan Province and conceptual model study of the gale |
| guohaiyu,chenhuazhong,tangxiangyu,zhangnu,yangling |
| (Yiyang Meteorological Bureau;Yuhuan Meteorological Bureau;Xiangtan Meteorological Bureau) |
| Abstract: |
| Abstract : This article has collected the wind velocity and direction data of 97 national meteorological stations in Hunan province day by day from 2006~2016,and according to the requirements of Hunan province urban meteorological forecasting,this article has analyzed the climatic characteristic of winds velocity above level 3 and 6 in Hunan province,and the results show that:①The annual average wind velocity is 1.63m/s,It shows a trend of increasing year by year,it is biggest in summer and smallest in autumn;②The average daily wind velocity is small in northwest and west area,and is big in northeast,east and southwest area;③The days that wind velocity above level 3 appear decreased year by year,multiple in spring and summer,less in autumn and winter,the southerly wind accounted for 51%;④The area of Yueyang,Changsha,Zhuzhou,Xiangtan,Yongzhou,Chenzhou has high frequency of wind velocity above level 3 day,northwest,southwest of Hunan and the area from Hengyang to Shaoyang has low frequency;⑤The days that wind velocity above level 6 appear get an increasing trend.Regional high winds above level 6 were classified into 4 different types,there are Cold-air-winds,Low-pressure-winds,Thunderstorm-winds and Typhoon-winds.And the conceptual model is built according to the types. |
| Key words: wind velocity；climatic characteristics；conceptual model |
