YAO Chaolong, LUO Zhicai, LIU Lilong, ZHOU Boyang. On the Relation Between the Wet Delay and the Water Precipitable Vapor in Consideration of Topographic Relief in the Low-latitude Region of China[J]. Geomatics and Information Science of Wuhan University, 2015, 40(7): 907-912. DOI: 10.13203/j.whugis20130409
Citation: YAO Chaolong, LUO Zhicai, LIU Lilong, ZHOU Boyang. On the Relation Between the Wet Delay and the Water Precipitable Vapor in Consideration of Topographic Relief in the Low-latitude Region of China[J]. Geomatics and Information Science of Wuhan University, 2015, 40(7): 907-912. DOI: 10.13203/j.whugis20130409
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On the Relation Between the Wet Delay and the Water Precipitable Vapor in Consideration of Topographic Relief in the Low-latitude Region of China

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    • Abstract
  • Theconversioncoefgficient betweenthezenithwetdelayandtheprecipitablewatervaporisanimportantparameteringround basedGPSmeteorology.Thedataof20radiosondestationsfrom2008to2011inalow latituderegionofChina(20.03°N～28.2°N)wereusedtoanalyzethechangeof withrespecttolatitudeandheight.Aregionalconversioncoefficient modelwithoutanymeteoro logicalparameterswasconstructedbyconsideringsitelatitude,dayoftheyear,andsiteheight.Theresultsshowthatthemeanvaluesof ateachsitetendtoreducewithincreasinglatitudeandheightattheratesof0.0002perdegreeand0.002perkilometer,respectively.Theregionalconversioncoef ficient modelhasalmostsameaccuracyasthatofthesite specificmodelorasestimatedbytheweightedmeantemperature,andcanbeusedtoobtainGPSPWVintheappliedregionwithoutanymeteorologicalparameters.
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