Transcription of D00659 A Guide to coordinate systems in Great …
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A Guide to coordinate systems in Great Britain D00659 Mar 2015 Crown copyright Page 1 of 43 A Guide to coordinate systems in Great Britain An introduction to mapping coordinate systems and the use of GPS datasets with Ordnance Survey mapping A Guide to coordinate systems in Great Britain D00659 Mar 2015 Crown copyright Page 2 of 43 Contents Section Page no 1 Introduction .. 3 Who should read this booklet? .. 3 A few myths about coordinate systems .. 4 2 The shape of the Earth .. 6 The first geodetic question .. 6 Ellipsoids .. 6 The Geoid .. 7 Local geoids .. 8 3 What is position? .. 9 Types of coordinates .. 9 Latitude, longitude and ellipsoid height .. 9 Cartesian coordinates .. 10 Geoid height (also known as orthometric height) .. 11 Mean sea level 12 Eastings and northings.
A guide to coordinate systems in Great Britain D00659 v2.3 Mar 2015 © Crown copyright Page 4 of 43 1.2 A few myths about coordinate systems
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