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A precise datum is significant as a starting or reference point for a multitude of activities like floodplain maps, property boundaries, civil surveys, precise agriculture, crustal deformation and climate studies, and works requiring consistent coordinates. A large nation like India, with almost its own tectonic plate, must have a well-defined network of horizontal datum for determining accurate and reliable 3D positioning for every user, anywhere and anytime. This article discusses the significance, methodology of realization and transformation, applications and static/dynamic coordinates for paving the way for a National Horizontal Datum in India

Keywords

Geodetic Survey, Horizontal Datum, Reference Frame, Tectonic Plate, Three-dimensional Positioning
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