Preliminary Estimation of Moisture Exchange in Rongbuk Valley on the Northern Slope of Mt. Qomolangma  

作　　者：Ma Shu-Po Zhou Li-Bo Zou Han Ji Chong-Ping 

机构地区：[1]LAPC & LOAR, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China [2]Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100086, China [3]Beijing Meteorological Observatory, Beijing 100089, China

出　　处：《Atmospheric and Oceanic Science Letters》2009年第1期40-44,共5页大气和海洋科学快报(英文版)

基　　金：financed by the National Natural Science Foundation of China (Grant No.40533018);the Ministry of Science and Technology of the People’s Republic of China(Grant No.2009CB421403);the Chinese Academy of Sciences(Grants No.KZCX3-SW-231 and 8-070203)

摘　　要：Using observed wind and water vapor data from June 2006,water vapor exchange between the Rongbuk Valley and its above atmosphere is estimated for the first time.The water vapor level shows a high value from 23-29 June and a low from 12-21 June,which co-incide with the South Asian summer monsoon (SASM) active and break stages,respectively.The water vapor can be strongly injected into the closed region of the Rongbuk Valley from the outside atmosphere,with an average strength of 0.4 g s-1 m-2 in June 2006,given that no evaporation occurred.The air moisture exchange proc-esses can be greatly affected by the SASM evolution through changes in local radiation forcing.Using observed wind and water vapor data from June 2006, water vapor exchange between the Rongbuk Valley and its above atmosphere is estimated for the first time. The water vapor level shows a high value from 23–29 June and a low from 12–21 June, which coincide with the South Asian summer monsoon (SASM) active and break stages, respectively. The water vapor can be strongly injected into the closed region of the Rongbuk Valley from the outside atmosphere, with an average strength of 0.4 g s^-1 m^-2 in June 2006, given that no evaporation occurred. The air moisture exchange processes can be greatly affected by the SASM evolution through changes in local radiation forcing.

关 键 词：the Himalayas Mt.Qomolangma moisture exchange the South Asian summer monsoon 

分 类 号：P426[天文地球—大气科学及气象学]