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Abstract:
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 determin-
ing accurate and reliable 3D positioning for every user,
anywhere and anytime. This article discusses the signifi-
cance, methodology of realization and transformation,
applications and static/dynamic coordinates for paving
the way for a National Horizontal Datum in India.
