近几十年青藏高原与华北地区地表太阳辐射变化特征及其影响因素的对比分析  

A comparative analysis of surface solar radiation change and its influencing factors during past few decades over Tibetan Plateau and North China

作　　者：范灵悦 马晓燕 赵剑琦 FAN Lingyue;MA Xiaoyan;ZHAO Jianqi(School of Atmospheric Physical/Key Laboratory for Aerosol-Cloud Precipitation of China Meteorological Administration,Nanjing University of Information Science&Technology,Nanjing 210044,China;Climate Center of Inner Mongolia Autonomous Region,Hohhot 010051,China)

机构地区：[1]南京信息工程大学大气物理学院/中国气象局气溶胶与云降水重点开放实验室,南京210044 [2]内蒙古自治区气候中心,呼和浩特010051

出　　处：《气象科学》2024年第2期254-266,共13页Journal of the Meteorological Sciences

基　　金：第二次青藏高原科考项目(2019QZKK0103);国家自然科学基金资助项目(42061134009,41975002)。

摘　　要：地表太阳总辐射具有较大的时空变化特征,不同地区的影响因素也存在显著差异。本文利用1961—2016年青藏高原与华北地区的地表太阳总辐射资料,在进行严格的质量控制和均一化处理的基础上,深入分析了两个地区总辐射的年际变化趋势,同时结合云量和气溶胶光学厚度观测资料,探讨了两个地区总辐射变化的影响因素。结果表明:(1)1961—2016年青藏高原和华北地区总辐射总体呈下降趋势,但2008年后青藏高原西部和东部地区总辐射变化趋势相反,而华北地区站点总辐射均呈上升趋势。(2)青藏高原西部地区总辐射的下降主要受到云量变化的影响,而东部地区低云量和气溶胶的下降是总辐射上升的重要原因。(3)在2006—2016年,华北地区总辐射的变化受气溶胶的影响更加显著。The trend of total radiation change and it's influencing factors are significantly different in various regions.In this paper,the surface total solar radiation data from 1961 to 2016 with strict quality control and homogenization were used to analyze the trend of total radiation change over the Tibetan Plateau and North China,furthermore,the influencing factors on total radiation change by combining the cloud and Aerosol Optical Depth(AOD)data were studied.Results show that(1)the total radiation of both the Tibetan Plateau and North China shows a decreasing trend from 1961 to 2016.The trend of total radiation changes in the western and eastern regions of the Tibetan Plateau is opposite after 2008,while the total radiation over North China shows an increasing trend.(2)The decrease of total radiation in the western region of the Tibetan Plateau is mainly influenced by the change in clouds,while the decrease in low cloudiness and aerosols in the eastern region is an important reason for the increase in total radiation.(3)The change in total radiation in North China is more influenced by aerosols from 2006 to 2016.

关 键 词：地表太阳辐射 云 气溶胶 青藏高原地区 华北地区 

分 类 号：P422.1[天文地球—大气科学及气象学]