近53a珠峰地区气温降水变化特征分析  

Study on the Climatic Characteristics in the Mount Qomolangma Region during the Last 53 Years

作　　者：王顺久 唐信英[2,3] 王鸽 李跃清[2,3] WANG Shunjiu;TANG Xinying;WANG Ge;LI Yueqing(Sichuan Provincial Climate Centre,Chengdu 610072,China;Institute of Plateau Meteorology,CMA,Chengdu 610072,China;Heavy Rain and Drought-Flood Disasters in Plateau and Basin Key Laboratory of Sichuan Province,Chengdu 610072,China)

机构地区：[1]四川省气候中心,成都610072 [2]中国气象局成都高原气象研究所,成都610072 [3]高原与盆地暴雨旱涝灾害四川省重点实验室,成都610072

出　　处：《高原山地气象研究》2021年第4期1-7,共7页Plateau and Mountain Meteorology Research

基　　金：第二次青藏高原综合科学考察研究项目(2019QZKK0105,2019QZKK0103);中国科学院先导专项子课题(XDA19070401);国家自然科学基金项目(41772173)。

摘　　要：利用聂拉木和定日国家气象观测站1967-2019年月气温和降水资料,开展了珠穆朗玛峰(简称珠峰)地区季、年气温和降水变化特征分析及变化趋势检验。结果表明:近53a珠峰地区季、年平均气温呈显著升高趋势,冬季增温幅度最大,年平均气温在1997年之前为波动下降而1997年之后则是波动增加,进入21世纪后气温升高愈发明显且在冬季尤为突出;珠峰地区1967-2019年降水量呈波动变化但变化趋势不显著;珠峰地区气温和降水体现出较强的局地性差异,其南、北坡气温和降水呈现出不同的变化特征。According to the mean seasonal and annual temperature and precipitation from Nielamu and Dingri meteorological sta-tions in the periods of 1967~2019,the variability of temperature and precipitation and their trends are analyzed in the Mount Qomolangma region.The biggest fluctuation of precipitation occured in winter on the seasonal scale,the mean annual temperature showed a wavelike decrease change before 1997 and a wavelike increase change after 1997,the mean seasonal and annual temperature are increased with the increasing of age.There is an increasing trend in mean seasonal and annual temperatures during this period in the Mount Qomolangma re-gion,and the increasing trends in winter seem more significant than those in the other three seasons.The research in this paper showed the seasonal and annual precipitation are no obvious variation in the Mount Qomolangma region.On the other hand,there is obvious local change characteristics for temperature and precipitation in the Mount Qomolangma region.The results of this study would be helpful for the understanding of the climatic characteristics on the Tibetan Plateau,and it could provide a reference for the Second Tibetan Plateau Scientific Expedition and Research(STEP).

关 键 词：珠峰 气温 降水 气候特征 趋势检验 

分 类 号：P467[天文地球—大气科学及气象学]