南极长城站与IGS站组网解算的最佳站数探讨  

Study on the best number of IGS stations for grouping network with Great Wall Station

作　　者：岳迎春[1] 明祖涛[1] 俞艳[2] 

机构地区：[1]中国地质大学信息工程学院,武汉430074 [2]武汉理工大学资源与环境工程学院,武汉430070

出　　处：《测绘科学》2009年第4期120-121,共2页Science of Surveying and Mapping

基　　金：国家自然科学青年基金的资助(40701145);中国地质大学(武汉)优秀青年教师资助计划资助项目(编号:CUGQNL0929)

摘　　要：GPS气象学在南极的应用中,南极长城站上空对流层天顶总延迟的解算精度直接影响该站上空的大气水汽含量的估算精度。本文运用麻省理工学院研制的高精度解算软件GAM IT/GLOBK,对引入不同数目的IGS跟踪站与南极长城站的GPS数据分别进行了组网解算,得出了该站上空的天顶总延迟,并解算了该站上空的可降水分,将其与实际降水进行了对比分析,得出了与南极长城站组网解算的最佳IGS跟踪站站数为3个。The precision of the total zenith delay in troposphere over Great Wall station in Antarctic directly affects the estimating precision of the water vapor contents in the Antarctica application of GPS meteorology. In this paper, the total zenith delay on GPS observational station was solved respectively by GPS data of Great Wall station grouped with IGS stations of different number using high-precision software-GAMIT/GLOBK developed by the Massachusetts Institute of Technology. Moreover, the precipitable water vapor （PWV） over Great Wall station in accordance with different programs of grouping network was computed to compare with the actual PWV. At last, the results were comprehensively analyzed to conclude that the best number of IGS tracking stations grouping with Great Wall station is 3.

关 键 词：IGS跟踪站 GPS数据 组网解算 天顶总延迟 

分 类 号：P22[天文地球—大地测量学与测量工程]