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1、AbstractWatervaporisoneoftheimportantgreenhousegasesintheatmosphere,
occupyinganimportantplaceinforecastingandmonitoringthesmalland
medium-scaledisastersweather(horizontalscaleataround100km)thatlife-cycle
usuallylastsonlyafewhours.Duetothelowspatialandtempor
2、alresolutionorhigh
cost,someconventionalvapourdetectionmeasuresaredifficulttoachievehigh
spatialandtemporalresolutionandlargepromotionoflow-costwatervapor
monitoring.TheestablishmentofcrustalmovementobservationnetworkofChina,as
wellastheContinuousOperational
3、ReferenceSystem(abbreviatedasCORS)inall
citiesprovideaneffectivehardwareprotectionanddatasourcesforground-based
retrievalofGPSwatervapor,whichhasnumerousadvantages,suchas,highspatial
andtemporalresolution,dynamicself-calibration,lowcost,feasibilityforlargera
4、nge
ofpromotion,etc.Inaddition,thetechnologyplaysapositiveroleinatmospheric
sounding,weathermonitoringandpredictionsystemimprovement,short-time
approachingweathersystemoptimization,suddenweatherdisastersmonitoringand
droughtandfloodsdisastrousweatherforecast
5、.Currently,retrievalofGPSwatervaporhasbeenwidelyresearchedbothathome
andabroad;however,ithasn'treachedattheuniversalapplicationlevelinChina.
SincemanycrustalmovementobservationsnetworkandContinuousOperational
ReferenceSystemarenotequippedwithstandardizationm
6、eteorologicaldata
monitoringequipments.Therefore,itisalsonecessarytodofurthertheoretical
analysisandstudyofalgorithmstohowfurthereffectiveusesthesecontinuousGPS
measuringstations,andimprovereal-timeretrievalofgpswatervapormonitoring
technologyandtheretrieval
7、ofGPSwatervaportechnologywithoutmeteorological
data.Thispaperfocusesontheseveralkeytechnologiesanalysisandresearchfor
retrievalofGPSwatervapor.Basedonrealtimemeteorologicaloperationalneed,this
paperstudiesthereal-timeretrievalofGPSwatervaportechnologywithout
8、
meteorologicaldata.Thispapermainlyfocuseson:1.RetrievalofGPSwatervaportheory.Thispapercomparativelyanalysethe
individualcharacteristicsandcalculationmethodsofrelatedmodelsanduses
soundingdatain
