文献类型：期刊文献

中文题名：不同路径台风或热带风暴对海南尖峰岭强降水的影响

英文题名：Influences of typhoons or tropical storms with different pathways on the intense precipitation of Hainan's Jianfengling

作者：周光益[1] 邱坚锐[1] 邱治军[1] 吴仲民[1]

第一作者：周光益

机构：[1]中国林业科学研究院热带林业研究所

年份：2004

卷号：24

期号：12

起止页码：2723-2727

中文期刊名：生态学报

外文期刊名：Acta Ecologica Sinica

收录：CSTPCD;;Scopus;北大核心:【北大核心2000】；CSCD:【CSCD2011_2012】；

基金：国家科技部社会公益研究专项资助项目 ( 2 0 0 0 DIB5 0 161) ;国家科技部和国家林业局全国重点野外科学观测站资助项目 ( 2 0 0 1-0 8)~~

语种：中文

中文关键词：海南尖峰岭;强降雨;地形;台风(或热带风暴)

外文关键词：Jianfengling of Hainan Island; intense storm; topography; typhoon or tropical storm

分类号：P426.615

摘要：利用尖峰岭气象站数 10 a间观测的历史资料 ,对尖峰岭暴雨特点、地形和不同路径台风和热带风暴对该地的暴雨量影响进行了分析。研究结果指出 :尖峰岭地区强降水主要来自台风和热带风暴的影响 ;其路径移向以尖峰岭为界 ,偏南和偏北台风所产生的雨量差异较大。尖峰岭暴雨产生除与天气系统密切相关外 ,地形也起到重要作用 。
Based on available climatic data in Jianfengling region from 1972 to 1993, the characteristics of intense precipitation and their relationship to typhoons or tropical storms and topography were studied in this paper. First, in Jianfengling region, the rain distribution was uneven through the year, and there are two distinct periods: the rain period and the dry period. The rain period occurs from May to October, and the dry period begins in November and ends in April of the next year. Furthermore, 94 percent of the intense precipitations occur from July to September. Jianfengling lies between 18°23′N to (23°52′N,)108 °36′E to 109°05′E, and belongs to tropical monsoon climate. Its precipitation events are associated with typhoons (or tropical storms). Most of the intense storms are related to typhoons or tropical storms. All the precipitation events exceeding 200 mm a day were caused by typhoons or tropical storms, and 56% precipitation events producing 100 mm a day were related to typhoons or tropical storms. Second, the pathway of typhoon or tropical storm affected precipitation significantly. In general, typhoon or tropical storm that passed through south side of Jianfengling (S-typhoon) brought little rainfall, but typhoon or tropical storm that passed through north side of Jianfengliang (N-typhoon) brought abundant rainfall. From 1972 to 1993, there are 19 N-typhoons and 24 S typhoons. The former brought 8183.5 mm rainfall totally, but the latter brought only 2785.4 mm rainfall. Furthermore, among 19-N typhoons, there were 4 typhoons or tropical storms that brought rainfall exceeding 600 mm, 2 typhoons or tropical storms brought rainfall between 400 mm to 500 mm, 3 typhoons or tropical storms brought rainfall between 300 mm to 400 mm, but there were no S-typhoons that brought rainfall more than 300 mm. This can be explained mainly by Jianfengling's topography. There is a series of high mountains including the famous five-finger-mountain with elevation of 1867.1 m in the northeast that form a huge barrier, its southwest face the sea is the flat agricultural area. Therefore, if typhoon or tropical storm passes through its south side (S-typhoon), the currents flow primarily from north and Jianfengling region becomes the leeward, and there will be little rainfall in the region. However, if typhoon or tropical storm passes through the north side, most wind flow is from the south which brings plenty of moisture from the sea, and Jianfengling region becomes the windward side of the mountains. When the currents ascend with the mountain, abundant rainfall will occur. Third, the instantaneous rainfall has close relation to wind speed and wind direction of typhoon or tropical storm. Generally, when the wind direction turned to southeast or southwest, the wind speed became weaker, but the rainfall became the heaviest.