| 中国东北南部地区冬季气温异常的海气背景分析 |
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| 引用本文： | 任广成,沈爱华.中国东北南部地区冬季气温异常的海气背景分析[J].气象与环境学报,2007,23(4):1-6. |
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| 作者姓名： | 任广成 沈爱华 |
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| 作者单位： | 1.中国人民解放军96631部队 北京102208;2.中国气象局上海台风研究所 上海200030 |
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| 摘 要： | 利用1951—2005年中国沈阳、通化、营口、丹东气温和北半球500 hPa高度及北太平洋海温资料,分析了中国东北南部地区冬季气温的异常变化及其海气背景。结果表明:中国东北南部地区冬季气温具有明显的年代际变化特征;冬季异常冷暖年份,其同期与前期500 hPa高度和海温距平场分布具有明显不同;前期春季(3—5月)贝加尔湖高压和西太平洋副热带高压的强弱变化,西风漂流区海温、赤道东太平洋关键区海温及2个海区海温距平差,对中国东北南部地区冬季气温的异常变化均具有较好的预测指示意义。前期夏季(7—9月)赤道东太平洋关键区海温对中国东北南部地区冬季气温异常变化具有指示性。
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| 关 键 词： | 中国东北南部 冬季气温 异常变化 海气背景 分析 |
| 收稿时间： | 2007-1-22 |
| 修稿时间： | 2007-01-22 |
Analysis of ocean-atmospheric background of abnormal winter temperature in the south of northeastern China |
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| REN Guangcheng,SHEN Aihua.Analysis of ocean-atmospheric background of abnormal winter temperature in the south of northeastern China[J].Journal of Meteorology and Environment,2007,23(4):1-6. |
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| Authors: | REN Guangcheng SHEN Aihua |
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| Institution: | 1.96631 Troops of the Chinese People's Liberation Army;Beijing 102208;2.Shanghai Typhoon Institute;China Meteorological Administration;Shanghai 200030 |
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| Abstract: | Based on air temperature data in Shenyang,Tonghua,Yingkou and Dandong and temperature data in 500 hPa geopotential height of the northern hemisphere as well as sea surface temperature data in the northern Pacific from 1951 to 2005,the abnormal variation of winter air temperature and its ocean-atmospheric background were analyzed in the south of northeastern China.It was found that the winter temperature in the south of northeastern China had an obvious inter-decadal variation.In the abnormal cold or warm winter,the departure in 500 hPa geopotential height and sea surface temperature at present and in former period was different.The intensity variations of Baikal high pressure and the western Pacific subtropical high in spring(from March to May),the sea surface temperature variations in the west wind drift area and in the key area of the equatorial eastern Pacific as well as their departure of sea surface temperature in two sea areas,were significant to forecast the abnormal temperature variation in the south of northeastern China,so was the summer(from July to September) sea surface temperature in the key area of the equatorial eastern Pacific. |
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| Keywords: | In the south of northeastern China Winter air temperature Abnormal variation Ocean-atmospheric background Analysis |
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