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气象:2008,34(1):100-106
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海南儋州雷暴天气气候特征分析
(1.海南省气象科学研究所,南海气象防灾减灾 重点实验室, 海口 570203;2.海南省儋州市气象局)
Climatic and Synoptic Characteristics of Thunderstorm in Danzhou of Hainan Province
(1.Key Laboratory of Preventing and Reducing Meteorological Disaster in the Sou th China Sea, Hainan Institute  of Meteorological Science, Hainan Haikou 570203;2.Danzhou Meteorological O bservatory)
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投稿时间:2007-05-25    修订日期:2007-11-10
中文摘要: 利用1971—2000年儋州30年逐日雷暴观测资料,对海南儋州地区雷暴时间 分布特点 和变化规律进行分析研究,总结了儋州雷电活动的气候特征。结果表明:儋州年平均雷暴日 数达111天,高发季节为每年5—8月,高发时段为午后13—17时,年雷暴日数年代际线性变 化呈下降趋势,但二阶滑动平均变化趋势为先减后增。对1991—2000年雷暴产生的天气影响 系统统计表明:儋州雷暴主要产生于冷空气、变暖的高压脊、热带气旋、副热带高压、热带 低值系统5类天气系统中,有明显的季节特征。
中文关键词: 雷暴  气候特征  天气系统
Abstract:Using the data of the thunderstorm days of Danzhou stations in Ha inan province from 1971 to 2000, the basic climatic characteristics of thunderstorm in Danzhou are analyzed. It is shown that the annual averaged days of thundersto rm in Danzhou are 111. Thunderstorm occurs frequently from May to August, most f requently from 13-17 in the afternoon . The general trend of the annual thunde rstorm in Danzhou has been reducing in the last 30 years. Based on the thunders torm data from 1991 to 2000, the related circulation patterns and synoptic syste ms are also studied. The synoptic patterns of thunderstorm can be divided into f ive types, which are affected by the cold air, indifferent cold high, the subtro pical high ,the tropical cyclone or related to tropical low systems respectively. The proportion of each type varies in different seasons.
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基金项目:国家自然基金项目“琼州海峡大风变化规律及预报方法研究(40765002) ”和海南省科技项目“琼州海峡大风预报系统”
引用文本:
辛吉武,许向春,蔡杏尧,2008.海南儋州雷暴天气气候特征分析[J].气象,34(1):100-106.
Xin Jiwu,Xu Xiangchun,Cai Xingrao,2008.Climatic and Synoptic Characteristics of Thunderstorm in Danzhou of Hainan Province[J].Meteor Mon,34(1):100-106.