The 3D Digital Terrain Model was developed by NECTAR (erstwhile Mission for Geospatial Applications (MGA)) for use by Paramilitary forces, State Police and Civil Departments, is an integrated product generated based on technology of 3D GIS integration of different scales of Survey of India Maps, high resolution satellite/aerial imagery and digital elevation data which all have a common Geographical coordinate system, helps for all levels of planning & operations showing from house to Global level 3D visualization and analysis. The Model is a Digital standalone Product which enables to carrying out 2D & 3D GIS analysis necessary for security forces and Government developmental planners.
For the Internal Security project (anti-naxal operation) the Model has been created as district level for all the districts of Chhattisgarh, Jharkhand, Odisha, Assam, Meghalaya, Nagaland, Tripura, Manipur, 16 districts of West Bengal, 14 districts of Bihar, 14 districts of Arunachal Pradesh, 9 districts of Jammu & Kashmir, 7 districts of Madhya Pradesh, 3 districts of Maharashtra. In North Eastern States, the Model was generated for 27 districts of Assam, 11 districts of Meghalaya, 12 districts of Nagaland comprising of 98,838 sq km in total. The model becomes more useful when integrated with external data from a variety of sources in the form of location coordinates, annotations etc providing layers of tailored information on top of the terrain imagery. The models were used for multiple applications viz Planning & execution of counter insurgency operations in the Ops room., Planning Operations for Urban Security & Disaster Management, Execution of Field Operations with Model loaded in ruggedized portable computers.
Application of 3D Terrain Models The potential application of 3D Terrain Models in various GIS projects was done in NECTAR apart from the Internal Security applications. Neighborhood mapping of education and health facilities, Planning and Monitoring of transportation facilities like Highway, Rural Roads, and Bridges & Flyovers, Location Planning of Multipurpose Reservoirs and management of water resources, and Visualization of flood modeling outputs are few applications professed by the Centre in using the 3D Terrain Models.