江蘇省四季變化的分析

doi:10.3969/2012jms.00**

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江蘇省四季變化的分析
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                        10.3969/2012jms.00**
                    
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中圖分類號(hào):P466
基金項(xiàng)目:江蘇省科委社會(huì)發(fā)展項(xiàng)目:江蘇省干旱災(zāi)害監(jiān)測(cè)預(yù)警系統(tǒng)的研制

The analysis of Jiangsu province''s four seasons

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摘要:

在全球氣候變暖的背景下,近些年江蘇省氣溫明顯升高,使得江蘇省四季的起止時(shí)間和長(zhǎng)度發(fā)生了明顯的改變.本文通過(guò)分析多種季節(jié)劃分方法,根據(jù)江蘇省的氣溫分布特點(diǎn),定義了適用于江蘇省的四季劃分方法.通過(guò)分析四季的變化,結(jié)果顯示:(1)江蘇省四季分明,且南北有明顯的差別,就全省常年平均而言,冬季最長(zhǎng),其次是夏季,秋季和春季長(zhǎng)度很相近,秋季略短.(2)過(guò)去幾十年里,江蘇省各地區(qū)各季節(jié)的長(zhǎng)度和起止時(shí)間都發(fā)生了明顯的變化,特別是自21世紀(jì)以來(lái),這種變化速度明顯加快,最主要的變化特點(diǎn)為:春季發(fā)生的時(shí)段向前移了近10d;夏季明顯變長(zhǎng),開(kāi)始時(shí)間提前,結(jié)束時(shí)間推后;秋季的發(fā)生時(shí)段整體向后移;冬季明顯縮短,特別是結(jié)束時(shí)間提前.

Abstract:

With the world climatic change the air temperature of Jiangsu province in recent years increased clearly. In this paper, by analyzing many methods of marking off the season and the air temperature distributing characteristic of Jiangsu province, the method of marking off the four seasons which adapts to Jiangsu province had been defined. The result shows: (1)The four seasons of Jiangsu province could be divided easily and the difference between North and South areas was obvious. The length of winter of whole Jiangsu province is the longest, the next is summer, and the length of autumn is near the springs. (2)In the past several decades, the four seasons length and beginning and ending dates changed clearly, especially in this century, the change rate increased sharply. The main characteristic of the change can be concluded that the springs occurrence moved ahead approximately by ten days; the length of summer became longer; the autumns occurrence moved backwards, and winter became more and more short. 

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張靜,呂軍,項(xiàng)瑛,肖卉.江蘇省四季變化的分析.氣象科學(xué),2008,(5):568-572 Zhang Jing, Lü Jun, Xiang Ying, Xiao Hui. The analysis of Jiangsu province''s four seasons. Journal of the Meteorological Sciences,2008,(5):568-572

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