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  • 简介:ThispaperfocusesonstudyinglongdistancetransferenceofheightdatumacrossseasbycombiningellipsoidalheightderivedfromGPSwithgravimetricgeoidheight.TheYellowSeaHeightDatumistransferredtoYangshanIslandwhichis30kmawayfromLuchaoganginShanghai.Thestationsheightsderivedinthiswayarecomparedwiththosedeterminedfromtwoindependentsetsofthetidalobservationstakenintwoyears,andthedifferencevaluesare1.0cmand6.0cm,respectively.Moreover,thederivedheightdifferencesbetweentwosectionsontheislandarealsocomparedwiththevaluesderivedfrompreciselevelingwithrespecttothesamesection.Theresultshowsthattheinconsistenciesareonly0.2cmand0.7cm,respectively.

  • 标签: GPS GEOID HEIGHT