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山东省雷暴时空变化特征
引用本文:高留喜,杨成芳,冯桂力,吕环宇.山东省雷暴时空变化特征[J].气候变化研究进展,2007,3(4):239-242.
作者姓名:高留喜  杨成芳  冯桂力  吕环宇
作者单位:山东省气象台
基金项目:国家自然科学基金;山东省气象局资助项目
摘    要: 根据1966-2005年山东省的雷暴资料,运用数理统计及自然正交函数展开(EOF)方法,对山东省雷暴气候特征进行了诊断分析。结果表明:山东省年雷暴日数的空间分布呈现出泰沂山区多、半岛沿海和山东西部平原较少的特点;雷暴主要发生在夏季,有明显的日变化;在过去40 a中,山东雷暴日数具有较强的年际、年代际变化,呈明显的波动下降的特点,并有一定的阶段性。

关 键 词:EOF方法  雷暴  时空变化特征  年际和年代际变化
文章编号:1673-1719(2007)04-0239-04
收稿时间:2006-12-18
修稿时间:2006-12-18

Spatial-temporal Variation of Thunderstroms in Shangdong Province
Gao Liuxi,Yang Chengfang,Feng Guili,Lu Huanyu.Spatial-temporal Variation of Thunderstroms in Shangdong Province[J].Advances in Climate Change,2007,3(4):239-242.
Authors:Gao Liuxi  Yang Chengfang  Feng Guili  Lu Huanyu
Institution:1 Shandong Meteorological Observatory, Jinan 250031, China, 2 Shandong Thunderstorm-Protection Center, Jinan 250031, China, 3 Dalian Air Traffic Management Center, Dalian 116033, China
Abstract:By using the data of thunderstorm of Shandong Province from 1966 to 2005 and applying EOF method and other mathematical statistical methods, the characteristics of spatial-temporal variations of thunderstorms were studied. The mainresults areasfollows: the distributionof annual mean of thunderstormdays shows that thunderstorms in the mountainous areas of Mt. Taishan and Mts. Yimeng are more than ones in the western plain area of Shandong Province and coastal region of Shandong peninsula. Thunderstorms mainly occur in summer with obvious diurnal variation. Analyses indicate that the general trend of Shandong thunderstorms has wavily reduced during the last 40 years .The interannual and decadal variabilities of thunderstorms are obvious in Shandong Province.
Keywords:EOF analysis  thunderstorm days  spatial-temporal variations  interannual and decadal variabilities
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