简介：ThemainactivitiesinthejointexpeditionbetweenCHINAREandANAREonAmeryiceshelfareintroduced.Five-daycontinuousGPSobservationdatacollectedonthesitewhichlocatesatthefrontalpartofAmeryiceshelfwasprocessedwithprecisepointpositioning(PPP)technologybasedonpreciseproductsfromIGS.VelocityofthesurfaceiceflowonAmerycanbederivedfromthePPPsolution.Preliminaryresultshowsthatthesurfaceiceflowvelocityofthesiteis2.25metersperday,themotiondirectionisnortheastward.SemidiurnaloceanictideanddiurnaloceanictidesignalofthatsitecanberecoveredfromtheheightvariationseriesofPPPsolution.Theseabovesolutionscanbeusedtotheconsequentmassbalancecalculation.
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