1961—2017年云南季節(jié)變化特征分析

doi:10.3969/2018jms.0104

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1961—2017年云南季節(jié)變化特征分析
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                        10.3969/2018jms.0104
                    
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中圖分類號(hào):650034
基金項(xiàng)目:國(guó)家自然科學(xué)基金資助項(xiàng)目（41665005）；氣象預(yù)報(bào)業(yè)務(wù)關(guān)鍵技術(shù)發(fā)展專項(xiàng)（YBGJXM2018）

Studies on the characteristics of seasonal variation of Yunnan Province during 1961-2017

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參照《中華人民共和國(guó)氣象行業(yè)標(biāo)準(zhǔn)-氣候季節(jié)劃分》（QX/T 152-2012）中關(guān)于氣候季節(jié)的定義標(biāo)準(zhǔn)，利用1961-2017年云南122個(gè)氣象站的氣溫資料，分析了云南的氣候季節(jié)區(qū)域的空間分布和季節(jié)開(kāi)始日期及長(zhǎng)度的變化趨勢(shì)。云南共有4種氣候季節(jié)區(qū)域，分別是四季分明區(qū)、無(wú)夏區(qū)、無(wú)冬區(qū)和常春區(qū)。無(wú)夏區(qū)范圍最廣，無(wú)冬區(qū)其次。不同年代四種季節(jié)氣候區(qū)域空間分布范圍不盡相同，無(wú)夏區(qū)和無(wú)冬區(qū)空間范圍變化最顯著。2011年以后云南出現(xiàn)四季分明區(qū)范圍明顯增大的現(xiàn)象，這與近年來(lái)氣候變暖背景下云南氣溫年較差增大的觀測(cè)事實(shí)相一致。云南四季分明區(qū)春季和秋季較長(zhǎng)，夏季和冬季較短。無(wú)夏區(qū)秋季最長(zhǎng)、春季次之、冬季最短。無(wú)冬區(qū)夏季最長(zhǎng)、春季和秋季長(zhǎng)度接近。不同氣候季節(jié)區(qū)域間春季和夏季開(kāi)始日期的變化均呈提早趨勢(shì)，秋季和冬季開(kāi)始日期有推遲的趨勢(shì)；在季節(jié)長(zhǎng)度變化上，夏季增長(zhǎng)，冬季變短，但春秋季長(zhǎng)度的變化不盡相同。

Abstract:

Based on Meteorological industry standard of People's Republic of China-Division of climate season (QX/T 152-2012), using the temperature data of 122 stations of Yunnan from 1961 to 2017, this paper analyzes the spatial distribution of climate season regions and the trend of beginning dates and seasonal length. There are four climate season regions in Yunnan, namely regions with four seasons, non-summer region, non-winter region and perennial spring region. The area of non-summer region is the most extensive, non-winter region in the next place. The spatial distribution varies for four climate season regions in different decades. The spatial change is the most significant for non-summer and non-winter regions. After 2011, the area of region of four seasons in Yunnan has increased remarkably, which is consistent with the observation fact that the annual difference of temperature in Yunnan has increased under the background of climate warming in recent years. The length of spring and autumn is longer but summer and winter is shorter of region with four seasons in Yunnan. The length of autumn of non-summer region is the longest, followed by spring and winter. The length of summer of non-winter region is the longest while spring and autumn are close. The beginning dates of spring and summer show an early trend in different climatic season regions, and the autumn and winter show a delayed trend. To the change of seasonal length, summer increases and winter became shorter, but the length of spring and autumn varies in different climate season region.

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姚愚,李蕊,鄭建萌,劉金福.1961—2017年云南季節(jié)變化特征分析.氣象科學(xué),2020,40(6):849-858 YAO Yu, LI Rui, ZHENG Jianmeng, LIU Jinfu. Studies on the characteristics of seasonal variation of Yunnan Province during 1961-2017. Journal of the Meteorological Sciences,2020,40(6):849-858

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收稿日期:2018-10-17
最后修改日期:2018-12-06
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在線發(fā)布日期: 2021-01-12
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