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 ,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.
The potential application of 3D Terrain Models in various GIS projects was done in NECTAR apart from the Internal Security applications. Neighbourhood 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 modelling outputs are few applications professed by the Centre in using the 3D Terrain Models.
Department of Revenue & Disaster Management, Govt. of Haryana under the scheme NLRMP of Ministry of Rural Development, GOI
The Centre was tasked cadastral Mapping of Fatehabad District of Haryana funded by Department of Revenue & Disaster Management, Govt. of Haryana under the national scheme National Land Record Modernization Programme (NLRMP) implemented by Department of Land Resources, Ministry of Rural Development, Government of India. The Mapping project of the district, comprised of 3505 numbers of cadastral maps (Musavis) in scale 1: 4000, spanning over 245 villages, handed over to the state authority. The task accomplished was comprising of number of major components like scanning, digitization of musavis, linking of Records of Rights (ROR) for each and every land parcels, validation and updation of parcels by state Patwaris and ground truthing using photogrammetry and ground survey techniques. The Centre carried out all the activities except ground truthing using ground survey and photogrammetry technique. All the records were handed over to state authorities.
NECTAR (erstwhile Mission for Geospatial Applications) has developed state of the art technology by generating 3D Digital Terrain Models for use in both Ops room & field for planning counter insurgence operations and launching field operations by the state police and paramilitary forces of our country. About 70 Terabytes of Digital data in the form of raster maps, High Resolution Imagery & Digital elevation data has been successfully processed within the stipulated time frame and generated 3D Terrain Digital Models of the following geographical extents-
- 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.
Highly skilled technical staffs of the Centre imparted training to various paramilitary and state police forces at different locations/stations in India for their successful use of the Model in planning & operation. Officials have taken participation in many such operations with state police officials of Assam and Meghalaya to assist them in using the Terrain models in real time counter insurgency operations.
A project on Feasibility study of Road Alignment from Sasoma to Saser Brangsa in Leh - Ladakh Region was taken up from CRRI for two useful activities. viz. (a) 3D Terrain Modelling: 3D GIS integration of different scales of Survey of India Maps, high resolution satellite/aerial imagery and digital elevation data and (b) High Precession Mapping: Data Collection through Unmanned Aerial Survey(UAV) using Drones and Integration of high resolution satellite imagery with Digital Elevation models and raster data, 3D Terrain Modelling, Feasibility road alignments and generation of Longitudinal and Cross section (regular intervals) by the Centre. Despite the project location was at very high altitude, the Centre has provided requisite data sets for the above two components by acquiring Drone images and DGPS ground control points.
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.
3D Terrain Model, is an integrated digital product created 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 have a common Geographical coordinate System was generated for 15 out of 16 districts of Arunachal Pradesh comprising of 74,476 sq km geographical area.
The above GIS products are useful for all levels of planning & operations showing from house to Global level 3D visualization. The Model is a Digital standalone Product which enables to carrying out 2D & 3D GIS analysis necessary for security forces and Government developmental planners.The model was created with a lot of challenge of cloud coverage in the satellite data.
The Geo-referencing accuracy was also an issue while processing and generating the satellite scenes due to its thick forest canopy. Control points of Survey of India Topo sheets were used in the satellite data for geo-referencing, and most of the areas were controlled by onboard satellite GPS coordinates provided by satellite data kit and the highly mathematical transformation algorithm using the RPC data. Another challenge was received during the ortho-rectification process of 3D terrain building that the unavailability of authenticated elevation data pertaining to international border areas from Survey of India due to security reasons and thereby the model was built by the use of free elevation data availed from various sources. However , the district level model is capable of basic 3D GIS analysis which all required by Police Department.
It can provide huge operational benefits to the police departments in field planning and reconnaissance purpose.
Last Updated : 09-06-2024 - 14:24
