珠峰和曲宗站2005年4,5月近地辐射能收支初步分析  

Preliminary Analysis on Near Surface Radiation Budget in the Region of Mt.Qomolangma in April and May 2005

作　　者：李茂善[1] 马耀明[2] 仲雷[2] 吕世华[1] 

机构地区：[1]中国科学院寒区旱区环境与工程研究所 [2]中国科学院青藏高原研究所,北京100085

出　　处：《高原气象》2006年第6期1008-1013,共6页Plateau Meteorology

基　　金：中国科学院知识创新工程重要方向项目"喜马拉雅山北坡地区面大气与对流层大气交换研究"(KZCX3-SW-231);国家重点基础研究发展计划"青藏高原环境变化及其对全球变化的响应与适应对策"(2005CB422003);中国气象局成都高原气象研究所开放课题"藏北高原地表能量和边界层结构的数值模拟"共同资助

摘　　要：利用中国科学院又一次珠穆朗玛峰地区科学考察(2005年4,5月)期间获得的辐射资料分析该地区地表辐射能的日变化,以及不同海拔高度、不同下垫面辐射各分量的异同,同时分析了不同海拔高度地表反照率在4月和5月的月变化和日变化。Mr. Qomolangma （Everest） is the highest peakin the world. The mountains of Himalayas are the important channels for the mass exchange between surface layer of Northern Hemisphere and troposphere atmosphere. The mountains relate surface layer atmosphere over the Tibetan Plateau and the above free atmosphere through many atmospheric circulation systems including mountain-valley wind. The Mt. Qomolangma region is a representative case of mountains of Himalayas. During the Scientific Expedition to Mt. Qomolangma of Chinese Academy of Sciences in spring 2005, one radiation system[CNR1 radiation sensor] and one turbulent measurement system [sonic anemo-thermometer （CSAT3）] were set up on the base camp of Mt. Qomolangma （28. 137°N, 86. 854°E, and 5149 m above m. s. 1. ）. Another radiation system [CNR1 radiation sensor] and turbulent system [sonic anemo-thermometer （CSAT3）] was set up at Quzong site （28. 310°N, 86. 896°E, and 4475 m above m. s. 1. ）. Quzong site is about 43 km from Mt. Qomolangma site. With the radiation measurement data the radiation income and expenses in the near surface were analyzed over Mt. Qomolangma region. The results showed that： （1） The shortwave radiation flux was almost same in April and May 2005, but longwave radiation flux in May was larger than those in April. （2） The surface albedo changes with difference of elevation.

关 键 词：珠峰地区 地表辐射能 地表反照率 

分 类 号：P422.4[天文地球—大气科学及气象学]