%0 Journal Article
%T STUDY ON PRECIPITABLE WATER VAPOR WITHOUT METEOROLOGICAL DATA<br>无地面温压数据的可降水量研究
%A Yu Shengjie
%A Liu Lintao
%A <br>于胜杰
%A 柳林涛
%J 大地测量与地球动力学
%D 2008
%I 
%X The pressure and temperature parameters are the prerequisite for the precise precipitable water vapor monitoring based on the ground GPS.When lacking in the above meteorological data,the precipitable water vapor is firstly derived on the basis of the extrapolated pressure and temperature,and its precision is also analyzed.At the same time,the linear relationship from fitting between the precipitable water vapor and zenith total delay is used to get the precipitable water vapor.The conclusion shows that,the precision of the precipitable water vapor from fitting is higher thanks to the avoidance of the apriori error.So,once the empirical relationship is determined,we can monitor the precipitable water vapor using GPS in high precison.
%K ground-based GPS meteorology
%K zenith total delay
%K precipitable water vapor
%K fitting
%K meteorological data<br>地基GPS气象学
%K 天顶延迟参数
%K 可降水量
%K 拟合
%K 气象参数
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=DA72A78627FE64EAA572951EA05D274A&jid=73A1A428591E600EF664B596512A2997&aid=3E7F6CB5C06DFBE035CFFEBDB20D8593&yid=67289AFF6305E306&vid=D3E34374A0D77D7F&iid=94C357A881DFC066&sid=339D79302DF62549&eid=16D8618C6164A3ED&journal_id=1671-5942&journal_name=大地测量与地球动力学&referenced_num=1&reference_num=13