1961—2020年青海黄南州气温变化特征分析  

Analysis on Characteristics of Temperature Change in Huangnan Prefecture in Qinghai from 1961 to 2020

作　　者：李延林 吴宝青 丁立善 李加本 LI Yanlin;WU Baoqing;DING Lishan;LI Jiaben(Huangnan Meteorological Bureau,Tongren Qinghai 811399;Zeku Meteorological Bureau,Zeku Qinghai 811400)

机构地区：[1]黄南州气象局,青海同仁811399 [2]泽库县气象局,青海泽库811400

出　　处：《现代农业科技》2023年第21期159-163,共5页Modern Agricultural Science and Technology

摘　　要：根据1961—2020年黄南州北部同仁和南部泽库两个站的气温资料,通过统计诊断方法分析了该地区气温变化特征。结果表明:在全球变暖的大背景下,近60年,黄南州平均气温呈明显的上升趋势,每10年同仁上升0.436℃,泽库上升0.466℃;冬季变暖趋势最明显,秋季增温次之,各个季节的显著升温导致了年平均气温显著上升;年平均最高和平均最低气温的变化存在不对称性,即年平均最低气温的上升幅度显著大于年平均最高气温的上升幅度;黄南地区年平均气温在20世纪90年代中期经历了一次突变过程,突变后升温速率明显增大。年平均最高气温突变时间与年平均气温突变时间一致,年平均最低气温突变时间在1993—1994年,略早于年平均气温。According to the temperature data of Tongren Station in the north and Zeku Station in the south of Huangnan Prefecture from 1961 to 2020,the characteristics of temperature change in this region were analyzed by statistical diagnosis methods.The results showed that under the background of global warming,the average temperature in Huangnan Prefecture showed a significant upward trend in the past 60 years,with an increase of 0.436℃in Tongren Station and 0.466℃in Zeku Station every 10 years.The warming trend in winter was the most obvious,followed by that in autumn.The significant warming in each season led to the significant warming of the annual average temperature.There was an asymmetry between the annual average maximum temperature and the average minimum temperature,that was,the increase of the annual average minimum temperature was significantly greater than the increase of the annual average maximum temperature.The annual average temperature in Huangnan region experienced a sudden change process in the middle of 1990s,and the heating rate increased significantly after the sudden change.The sudden change time of the annual average maximum temperature was consistent with the sudden change time of the annual average temperature.The sudden change time of the annual average minimum temperature was about 1993-1994,which was slightly earlier than that of the annual average temperature.

关 键 词：气温 变化特征 变异系数 M-K检验 青海黄南 1961—2020年 

分 类 号：P467[天文地球—大气科学及气象学]