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1、附录1英文原文ConversionofexistingmappingresultstotheChinaGeodeticCoordinateSystem2000Chinaisavastareaofthecountry,duetohistoricalreasons,China'sadoptionoftheBeijing54coordinatesystem,suchasXi'an80coordinatesystemcoordinates.Withthemappingtechnologyknownas200

2、0,Chinaestablishedanationalgeodeticcoordinatesystemoftheearthcoordinatesystem.Thiswillbetheextentpossible,onChina'sachievementshavebeenconvertedtothenewmappingcoordinatesavarietyoftheoreticalmethodstobelearningfromindustrypeers.1.DefinitionoftheChinaGe

3、odeticCoordinateSystem20001.NationalGeodeticcoordinatesystemisdefinedtoincludetheoriginofcoordinates,threeaxesofdirection,scale,andtheearthellipsoidfourbasicparametersofthedefinition.ChinaGeodeticCoordinateSystemorigintoincludetheoceansandatmospherewho

4、leEarth'scenterofmass;ChinaGeodeticCoordinateSystemZaxispointingtotheoriginalEpoch2000.0oftheEarth'sdirection,theepochofthepointbytheInternationalBureauoftimeepoch1984.0settheinitialpointfortheprojections,thetimeevolutionoforientationrelativetothecrust

5、doesnotguaranteetheglobalresidualrotation,X-axispointingtotheoriginalpointofreferenceGreenwichmeridianandtheEarthequatorialplane(epoch2000.0)oftheintersection,Y-axisandZaxis,Xaxistotherighthandorthogonalcoordinatesystem.Withgeneralrelativityinthesenseo

6、fscale.ChinaGeodeticCoordinateSystemusedintheearthellipsoidparametersvaluesare:Longaxlea＝6378137mFlatratef=1/298.257222101GravitationalconstantGM＝3.986004418×1014m3s-2Angularvelocityω＝7.292l15×10-5rads-1Otherparametersasfollows:Shortradiusb(m)6356752.3

7、1414Polarradiusofcurvaturec(m)6399593.62586Thefirsteccentricitye0.0818191910428Squaredoffirsteccentricitye20.00669438002290SecondEccentricity0.0820944381519SquaredofSecondEccentricity20.006739496775481/4ThelengthofthemeridiancircleQ(m)10001965.7293Thea

8、verageradiusofellipsoidR1(m)6371008.77138ThesamesurfaceareaofthesphereradiusR2(m)6371007.18092ThesamevolumeofradiusR3(m)6371000.78997EllipsoidintheproperpositionU0(m2s-2)62636851.7149DynamicshapefactorJ20.001082629832258Sphericalharmoni