气象与环境学报2011，Vol.27Issue(4)：12-16,5.
1951—2008年东北地区冬季气温变化及环流场特征
Variation characteristics of winter air temperature and circulation field from 1951 to 2008 in the Northeast China
摘要
Abstract
Based on the air temperature data and the NCEP reanalysis data of height field from 1951 to 2008,the variations of winter air temperature in the Northeast China were analyzed in terms of methods of a linear trend analysis and a Mann-Kendall test.The results indicate that the warming in winter in the Northeast China begins since the middle stage of 1980s,and the abrupt change of winter air temperature occurs in 1986.The warmest decade in winter appears in the early stage of 21 century.For winter air temperature in the Northeast China,the higher the latitude is,the larger the tendency value of winter air temperature is.The warming tendency in Heilongjiang province is the most obvious from 1999 to 2008.For annual air temperature,the tendency value of winter air temperature is larger than that of the average of the Northeast China,and the largest one is in Jilin province.The distributions of height anomaly field in 500 hPa in cold and warm winter years show that the negative and positive anomaly centers in cold and warm winter years are located in the middle of the Northeast China and from Baikal Lake to the mid-north of the Northeast China,respectively.The low level are controlled by the northwestern wind,west wind and northeastern wind in cold winter year in the Northeast China and cold air is strong,while it is only influenced by the northwestern wind in warm winter year and cold air is weak.关键词
东北地区/气温/冬季/环流特征Key words
The Northeast China/Air temperature/Winter/Circulation characteristic分类
天文与地球科学引用本文复制引用
高峰,隋波,孙鸿雁,姚国友,陈雷..1951—2008年东北地区冬季气温变化及环流场特征[J].气象与环境学报,2011,27(4):12-16,5.基金项目
国家科技支撑项目（2007BAC29B04）资助 （）
