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《Engineering of Surveying and Mapping》 2008-01
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Analyzing precipitable water vapor of Chengdu area by ground-based GPS

ZHAO You-bing1,HUANG Ding-fa1,GU Li-ya1,LV Yipei2,ZHANG Rong-dou1(1.Dept of Surveying Engineering,Southwest Jiaotong University,Chengdu 610031,China;2.Earthquake Administration of Sichuan,Chengdu 610041,China)  
On the basis of the observed data from Chengdu GPS Earthquake Monitor Network,it obtained the tropospheric zenith delay and the wet zenith delay at CHDU,JYAN,PIXI,QLAI,RENS,ZHJI site by Bernese software,following the discussed relation between wet zenith delay parameters and precipitable water vapor(PWV),it calculated the PWV over the six site,and compared with the ground rainfall and SONDE PWV at related sites.Results show that the PWV is very correlative with the ground rainfall;the average difference with SONDE PWV is 0.43 mm with RMS of 2.56 mm.In addition,combined analysis on multi-site PWV observations may help us research the change of total quantity of regional PWV.
【Fund】: 国家自然科学基金资助项目(40474008);; 教育部博士学科点专业基金资助项目(20040613025)
【CateGory Index】: P412
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【Citations】
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【Co-citations】
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