Geomatics 16 min read
Geomatics
Geomatics
The science of measurement and mapping ā surveying, geodesy, coordinate systems and spatial data collection.
Geomatics is the science of measuring and mapping the Earth and man-made environments. It encompasses surveying, geodesy, photogrammetry, remote sensing, GIS and GPS. In heritage work, geomatic methods provide the spatial accuracy required for conservation planning, site management and digital twin creation.
Disciplines within geomatics
Surveying, geodesy, cartography, GIS, photogrammetry, remote sensing and satellite navigation (GNSS/GPS) are all branches of geomatics.
Relevance to heritage
Geomatic methods underpin heritage documentation, site boundary mapping, buffer zone definition and spatial analysis of heritage conditions. Accurate coordinates are essential for registration with the Survey of India.
Coordinate systems in India
India uses WGS-84 for GNSS work and the Everest ellipsoid for traditional survey. Most GIS projects use UTM zones 42Nā46N or the India-specific VKS-2000 projection.
Frequently Asked Questions ā Geomatics
What is geomatics and how is it used in heritage work?
Geomatics combines surveying, photogrammetry, GIS and remote sensing to measure and map the physical world. In heritage work it is used to accurately locate and map historic sites, create measured drawings, produce orthophotos and manage spatial data for conservation planning.