%0 Journal Article
%T Retrieval of Upper Tropospheric Relative Humidity by the GMS-5 Water Vapor Channel: A Study of the Technique<br>Retrieval of Upper Tropospheric Relative Humidity by the GMS-5 Water Vapor Channel： A Study of the Technique
%A HUANG Yi
%A WANG Meihua
%A MAO Jietai
%A <br>HUANG Yi
%A WANG Meihu
%A MAO Jietai
%J 大气科学进展
%D 2004
%I 
%X This paper presents an analysis of a technique for retrieving upper tropospheric relative humidity through the GMS-5 satellite's 6.7-micron water vapor channel brightness temperature.NCEP analysis shows that a critical assumption of the retrieval theory,namely the constant temperature lapse rate,matches only in the tropical atmosphere.By statistical analyses of brightness temperature simulated by a radiative transfer model and of relative humidity,we examine the effect of lapse rate on this retrieval method and obtain retrieval parameters and error estimates applicable to the GMS-5 satellite over East Asia.If the retrieval parameters are properly chosen,the relative error of retrieving the upper tropospheric relative humidity in this region is less than 10%,and if applied to the low-latitude summer atmosphere,it is less than 5%.
%K upper troposphere
%K water vapor
%K satellite retrieval
%K brightness temperature<br>对流层
%K 气象卫星
%K 统计分析
%K 大气辐射
%K 温度
%K 湿度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=28A2F569B2458C17&jid=5434AFBF6CB6E7E8D67733B541F211C7&aid=0DC435FB92EED417D6F933801485682D&yid=D0E58B75BFD8E51C&vid=659D3B06EBF534A7&iid=CA4FD0336C81A37A&sid=8E6AB9C3EBAAE921&eid=BFE7933E5EEA150D&journal_id=0256-1530&journal_name=大气科学进展&referenced_num=0&reference_num=13