Transformations and OSGM02 user guide - Leica Geosystems

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Worked example using Airy 1830 ellipsoid and National GridIntermediate values are shown here to 10 decimal places. Compute all values using double precision arithmetic.EN651 409.903 m313 177.270 mφ′ 9.2002324604e–01 radM 4.1290347144e+052nd φ′ 9.2006619470e–01 radM3rd φ ′Mfinal φ′νρη 2VIIVIIIIXXXIXIIXIIA4.1317717541e+059.2006620953e-01 rad4.1317726997e+059.2006620954e–01 rad6.3885233415e+06 m6.3728193094e+06 m2.4642205195e–031.6130562490e–143.3395547442e–289.4198561719e–422.5840062509e–074.6985969968e–211.6124316622e–346.6577316330e–48φλ52° 39' 27.2531" N1° 43' 4.5177" ETransformations and OSGM02 user guide appendix Cv2.1 9/2002 © crown copyrightPage 39
Appendix DGlossaryThe following is a list of technical terms used in this user guide, together with a fuller definition.datumA point, line, surface or set of these, with respect to which positions of objects can be stated as unique sets ofcoordinates.de facto national standardA national standard by adoption rather than legally enforced.ellipsoid (biaxial)The 3-D geometric figure obtained by rotating an ellipse about its minor axis. Used in geodesy to approximate theshape of the earth.ETRF89European Terrestrial Reference Frame 1989 – the Europe-fixed realisation of WGS84. Governed by EUREF as astandard reference frame for Europe.ETRS89European Terrestrial Reference System 1989 – a coordinate system that is the Europe-fixed precise version of WGS84.Governed by EUREF as the standard fixed reference system for Europe. ETRS89 is related to thestate-of-the-art WGS84-consistent system ITRS2000 by a six-parameter kinematic transformation published by IERS.EUREFEUREF (European Reference Frame): a sub-commission of the International Association of Geodesy, Commission X.geocentric datumA reference system that uses the centre of mass of the earth as its origin; the popularity of these systems today derivesfrom their usefulness in describing satellite orbits.Transformations and OSGM02 user guide appendix Dv2.1 9/2002 © crown copyrightPage 40
Page 2 and 3: PrefaceThis grid transformation sof
Page 4 and 5: Data copyrightUser guide copyrightT
Page 6 and 7: Appendix A Transforming ETRS89 GPS
Page 8 and 9: Orthometric heights in these system
Page 10 and 11: ETRS89 explainedBenefitsOrdnance Su
Page 12 and 13: Chapter 2Data overviewBasic princip
Page 14 and 15: Where:1 the record number is a sequ
Page 16 and 17: Where:1 the record number is a sequ
Page 18 and 19: 4 the height of the Geoid above the
Page 20 and 21: For example, to find the record for
Page 22 and 23: Shifts for x, y are:se 0= east_shif
Page 24 and 25: The OSi/OSNI polynomial transformat
Page 26 and 27: The Ordnance Survey Geoid model: OS
Page 28 and 29: Chapter 4Quality statementCoverageO
Page 30 and 31: Appendix ATransforming ETRS89 GPS c
Page 32 and 33: The offset values are given by:dx =
Page 34 and 35: Appendix BConverting latitude and l
Page 36 and 37: ⎛ ⎛ 5 2 5 3 ⎞ ⎛2 21 3 ⎞
Page 38 and 39: Appendix CConverting easting and no
Page 42 and 43: Geoid modelA model of the level sur

Transformations and OSGM02 user guide - Leica Geosystems

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