中国东部夏季降水与气温的联合EOF分析

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英文篇名：Joint EOF Analysis of Summer Precipitation and Temperature in Eastern China 作者：郑金新 ; 黎洛丝 ; 郑嘉雯 ; 郑菲菲 英文作者：ZHENG Jin-xin;LI Luo-si;ZHENG Jia-wen;ZHENG Fei-fei;Meteorological Bureau of Heyuan City;School of Atmospheric Sciences, Chengdu University of Information Technology; 关键词：气候学 ; 降水 ; 气温 ; 联合EOF ; 回归分析 ; 中国东部 英文关键词：climatology;;precipitation;;temperature;;joint EOF;;regression analysis;;eastern China 中文刊名：广东气象 英文刊名：Guangdong Meteorology 机构：河源市气象局;成都信息工程大学大气科学学院; 出版日期：2019-05-09 16:22 出版单位：广东气象 年：2019 期：02 语种：中文; 页：13-18 页数：6 CN：44-1353/P ISSN：1007-6190 分类号：P426.6;P423

摘要

采用JEOF等方法分析中国东部夏季降水和气温的协同变化时空分布特征,结果表明:当时间系数为正时,第1典型场降水型态从北向南(下同)呈"++-"分布,气温表现为冷异常,500 hPa回归场在中纬度地区呈显著低压异常,SST回归场表现为太平洋海域呈西北-东南的分布;第2典型场降水呈"+-"分布,气温则呈"-+"分布;第3典型场降水分布呈中间型,气温场呈"-+"分布。
        Using the method of JEOF, this work studies the characteristics of spatiotemporal distribution of concurrent variation of summer precipitation and temperature in eastern China. The result is shown as follows. When the time coefficient is positive, the pattern of precipitation for the first typical field shows a "++-" distribution from north to south(same below) and the temperature is of cold anomaly. A regression field at 500 hPa shows a significant low-pressure anomaly in the mid-latitude area and an SST regression field shows a northwest-southeast distribution over the area of the Pacific. The precipitation for the second typical field shows a "+-" distribution and the temperature a "-+" distribution. The precipitation for the third typical field shows a distribution in between and the temperature a "-+" distribution.

引文

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