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

LI Mao-shan;MA Yao-ming;ZHONG Lei;Lü Shi-hua

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Plateau Meteorology ›› 2006, Vol. 25 ›› Issue (6) : 1008-1013.

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

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Abstract

Mt.Qomolangma(Everest) is the highest peak in 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.l.).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.l.).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.

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Mt. Qomolangma regio / Surface radiant ener / Surface albedo

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LI Mao-shan , MA Yao-ming , ZHONG Lei , Lü Shi-hua. Preliminary Analysis on Near Surface Radiation Budget in the Region of Mt.Qomolangma in April and May 2005. Plateau Meteorology. 2006, 25(6): 1008-1013

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