摘要
选取中国东北区域162个气象站1961—2015年地面气温资料,采用多种统计方法分析了近55 a东北地区气温的一致性和局地性演变特征。结果表明:东北地区年平均气温存在较为良好的空间一致性,"全区一致型"气候类型为东北地区最主要气候形态;第一旋转载荷向量时间系数呈上升趋势亦存在较明显2—7 a的周期,说明北部地区气温受全球变暖、ENSO等大尺度气候背景影响显著; 1961—2015年北部区域以0. 34℃/10 a的升温率高于南部区域的0. 26℃/10 a,但1980年后增温趋势减慢;年平均气温的概率曲线随年代整体向高值区移动,北部区域冬季增暖较为显著,南部区域冬夏均较为明显,春秋季节可能有缩短趋势。
The consistency and local characteristics of the temperature in Northeast China were studied using the surface temperature data from 162 stations in Northeast China from 1961 to 2015.The results show that there is good spatial consistency in the annual average temperature in Northeast China.The region-wide consistent climate pattern is the most important climate pattern of the region.The time coefficient of the first rotation load vector shows an upward trend and there is also a significant 2-7 years periodicity,indicating that the temperature in the northern region is significantly affected by global warming,ENSO (El Ni o-Southern Oscillation),and another large-scale climatic background.The temperature increasing rate in the northern region is 0.34 ℃ per decade from 1961 to 2015,which is higher than that of 0.26 ℃ per decade in the southern region,while the increasing trend slows down after 1980.The probability curve of annual average temperature moves to the high-value area with time.Significant warming appears in winter in the northern region,and in both winter and summer in the southern region,which indicates that the length of spring and autumn may be short.
作者
侯依玲
刘鸣彦
赵春雨
王涛
HOU Yi-ling;LIU Ming-yan;ZHAO Chun-yu;WANG Tao(Institute of Atmospheric Environment,China Meteorological Administration,Shenyang 110166,China;Shenyang Regional Climate Center,Shenyang 110166,China)
出处
《气象与环境学报》
2019年第2期69-76,共8页
Journal of Meteorology and Environment
基金
中国气象局沈阳大气环境研究所开放基金(2016SYIAE08)
中国气象局气候变化专项(CCSF201609
CCSF201819和CCSF201526)
江苏省普通高校研究生科研创新计划项目(CXZZ12_0497)共同资助
关键词
东北地区
气温
一致性
局地性
Northeast China
Temperature
Consistency
Localness
