山東省雷暴時(shí)空變化特征

氣候變化研究進(jìn)展 ?? 2007, Vol. 03 ?? Issue (04): 239-242.

山東省雷暴時(shí)空變化特征

高留喜楊成芳馮桂力呂環(huán)宇

山東省氣象臺(tái)

收稿日期:2006-12-18 修回日期:2007-01-29 出版日期:2007-07-30 發(fā)布日期:2007-07-30
通訊作者: 高留喜

Spatial-temporal Variation of Thunderstroms in Shangdong Province

Received:2006-12-18 Revised:2007-01-29 Online:2007-07-30 Published:2007-07-30

摘要/Abstract

摘要： 根據(jù)1966-2005年山東省的雷暴資料，運(yùn)用數(shù)理統(tǒng)計(jì)及自然正交函數(shù)展開（EOF）方法，對(duì)山東省雷暴氣候特征進(jìn)行了診斷分析。結(jié)果表明：山東省年雷暴日數(shù)的空間分布呈現(xiàn)出泰沂山區(qū)多、半島沿海和山東西部平原較少的特點(diǎn)；雷暴主要發(fā)生在夏季,有明顯的日變化；在過去40 a中，山東雷暴日數(shù)具有較強(qiáng)的年際、年代際變化，呈明顯的波動(dòng)下降的特點(diǎn)，并有一定的階段性。

關(guān)鍵詞: EOF方法, 雷暴, 時(shí)空變化特征, 年際和年代際變化

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 main results are as follows: the distribution of annual mean of thunderstorm days 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.

Key words: EOF analysis, thunderstorm days, spatial-temporal variations, interannual and decadal variabilities

高留喜楊成芳馮桂力呂環(huán)宇. 山東省雷暴時(shí)空變化特征[J]. 氣候變化研究進(jìn)展, 2007, 03(04): 239-242.

. Spatial-temporal Variation of Thunderstroms in Shangdong Province[J]. Climate Change Research, 2007, 03(04): 239-242.

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