Transformations and OSGM02 user guide - Leica Geosystems

PrefaceThis grid transformation software and user guide has been commissioned by a consortium comprisingOrdnance Survey Great Britain, Ordnance Survey Ireland (OSi), and Ordnance Survey of Northern Ireland (OSNI).These organisations are responsible for the official, definitive topographic mapping of their respective countries.This user guide contains all the information you need to make effective use of the Ordnance Survey GridTransformations in the UK and Ireland, and the Ordnance Survey Geoid model (OSGM02). Within Great Britaincoordinates are transformed using the Ordnance Survey National Grid Transformation (OSTN02). Within the Republicof Ireland and Northern Ireland, the OSi/OSNI Polynomial Transformation is used. OSGM02 is used to transform heightsthroughout the UK and Ireland.Users wishing to incorporate the pre-prepared .dll should refer to the Grid InQuest 6.0 user guide.The intention of this guide is to help you understand the information contained in the data, as well as providing detailedtechnical information and the data format specification; however it is assumed that users have some appreciation ofcoordinate systems and datums. This user guide has been checked and validated before issue and every endeavourmade to ensure that the contents are accurate. If you find an error, omission, or otherwise wish to make a suggestion asto how this user guide can be improved, please contact us at the address shown under Contact details.Contact detailsFor users in Great Britain and the Isle of Man:The Geospatial Development Team will be pleased to deal with your enquiries:Email: GIDTechSup@ordsvy.gov.ukor write to:The Geospatial Development TeamOrdnance SurveyRomsey RoadSOUTHAMPTONUnited Kingdom SO16 4GUWeb site: www.gps.gov.ukTransformations and OSGM02 user guide prefacev2.1 9/2002 © crown copyrightPage 1