Tidal harmonic analysis of TOPEX/POSEIDON data in the Northwest Pacific by introducing difference-ratio relations

(整期优先)网络出版时间:2002-01-11
/ 1
Thedifference-ratiorelationsareintroducedtoseparatetidalconstituentsthatarealiasedduetothesamplingintervalandsamplingspanoftheTOPEX/POSEIDONaltimeter.ItisfoundthatsometidalconstituentssuchasK1andSSA,thoughaliasedatalongtrackpoints,arenotaliasedatcrossoverpointsbecausethedataatcrossoverpointsaredoublethoseatalongtrackpoints.Sotheharmonicanalysismethodcanbeemployeddirectlyfortheanalysisoftimeseriesatcrossoverpoints.Thenthedifference-ratiorelationsfromcrossoverpointsareintroducedtoanalyzethetimeseriesatalongtrackpoints.TheTOPEX/POSEIDONdataintheNorthwestPacificareanalyzedwiththismethod.Theresultsfromthismethodagreewellwithtidalconstantsfromtidalgauges.