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1960-2005年我国南方地区1月地面最低气温的时空特征及成因分析 被引量:10

Analysis of Spatial and Temporal Characteristics of Minimum Temperature over Southern China in January of 1960~2005 and the Possible Reasons
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摘要 采用REOF、合成分析等方法,研究了1960~2005(共46年)我国南方地区冬季(1月)地面最低气温的时空特征,并探讨了经过REOF分区后各区域影响最低气温的主要因子。结果表明:根据最低气温REOF分区可把我国南方地区最低气温划分为A,B,C三个区域:A区主要包括广西、湖南、贵州;B区主要包括海南、广东、福建和浙江;C区主要包括湖北、河南和安徽。影响这三个分区最低气温的因子各有不同,A区主要是受来自青藏高原东部及其周边的热源影响,B区主要是受西太副高和西南气流的影响,影响C区的则主要是来自北方的冷空气。 Based on REOF and synthetic analysis methods, this paper analyzed the inter - annual change and space distri- bution character of minimum temperature in the southern China and its possible reasons in 1960 - 2005 (46 years) in January. The results are shown as follows: (1) The minimum temperature in the southern China can be divided into three regions, re- spectively, district A, B and C. District A mainly includes the provinces of Guangxi, Guizhou and Hunan, district B mainly includes the provinces of Hainan, Guangdong, Fujian and Zhejiang, district C mainly includes the provinces of Hubei, Henan and Anhui. The main influencing factors of these regions are different each other. The district A is mainly influenced by the warm flow from the east of the Tibetan Plateau and its surrounding areas. The district B is mainly influenced by the west Pacific subtropical high and the south -west flow. While the district C is mainly affected by the northern cold air.
出处 《高原山地气象研究》 2014年第4期48-52,共5页 Plateau and Mountain Meteorology Research
基金 国家重点基础研究发展计划(973计划):我国持续性重大天气异常形成机理与预测理论研究和方法研究(2012CB417200)
关键词 地面最低气温 南方地区 REOF 合成分析 分区 the minimum temperature, southern China, REOF, synthetic analysis, partition
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