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《Journal of Glaciology and Geocryology》 2007-04
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Radiation Balance Observation at an Elevation of 6523 m on the North Slope of Mount Qomolangma

JIANG You-yan, REN Jia-wen, QIN Xiang, XIE Ai-hong,WANG Ye-tang(State Key Laboratory of Cryosphere Science,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou Gansu 730000,China)  
Diurnal mean variation and variations of mean daily variations of global radiation,surface short-wave radiation,surface longwave radiation,atmospheric counter-radiation are analyzed by using the radiation parameters obtained from the automatic weather station over the Ruopula pass of the East Rongbuk Glacier(at an elevation of 6523 m) from May 1 to July 22,2005,the surface albedo and the radiation balance.The short-wave radiation has a big change with the solar elevation angle increasing,and the daily global radiation has a good correlation with the surface short-wave radiation.The surface albedo is higher due to new snow always falling.Diurnal variation of atmospheric counter radiation lags for 2 hours behind the surface long wave radiation change,with a daily variation larger than that of the surface long-wave radiation.Diurnal mean net radiation changes with solar elevation angle increasing.There is an increasing tendency of the daily radiation balance during the observing duration.
【Fund】: 中国科学院知识创新工程重要方向项目(KZCX3-SW-344);; 国家自然科学基金项目(40501015);; 中国科学院知识创新工程重要方向项目(KZCX3-SW-339)资助
【CateGory Index】: P422.4
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