Aerial photo interpretation is used by GSI as an aid to geological mapping structural elucidation, mineral investigation, Quaternary geology & geomorphological mapping, hazard studies and geo-environmental appreciation since four decades. PGRS laboratories are now situated in nine centres, one each at the regional headquarters and one in the Wings headquarters and offers remote sensing application service to various internal operational activities and outside agencies. GSI carried out promotional and development projects in collaboration with ISRO, ISI, NRSA, CMPDI and Roorkee University. It has produced lineament and geomorphological map of India on 1:20,000 scale. The innate advantage of digital image analysis and the potential of new remotely sensed data have been successfully utilized in carrying out various projects.

Services available

• Photo-interpreted multithematic maps of inaccessible terrains with limited field checks.
• Mineral prognostication based on multi-criteria analysis and exploration
• Delineation of drainage anomaly zones, palaeo-meander belt segments and abandoned channels
• Detection of neotectonic faults in the Quaternary sediment covered terrains.
• Delineation of erosional and depositional features to detect progressive changes in shoreline configuration.
• Geoenvironmental impact analysis of large man made reservoirs, and other engineering projects
• Morphostratigraphic and morphological studies in desert environment
• Generation of geomorphological and landuse-landcover, structural, landform, lithostratigraphic maps as Syn -exploratory baseline Remote sensing Information.
• Creation of DEM/ 3D image models
• Water body conservation and management studies.
• Urban Mapping and creation of spatial urban database
• Change detection studies especially pertaining to the impact of natural hazards.