Geosciences Department (GSD) is one of the oldest departments of IIRS established in 1966 in collaboration with ITC, the Netherlands, to provide professional training to scientists and technical staff of government and public sector organizations dealing with geoscientific applications such as geological survey and mapping, groundwater resource assessment, mineral targeting and hydrocarbon exploration, and engineering geological mapping. Significant contributions of the department are as follows:
- Produced landmark geological maps: (a) geological map of Garhwal Himalaya (1970s), (b) geological map of Cuddapah Basin (1970s-1980s), (c) hydromorphogeolocal maps of different parts of the country including Cuddapah, Vindhyan, Doon valley and surroundings (1970s-1980s), (d) groundwater prospect and quality map of NCR Delhi (2000s);
- Provided geological input in many national and international projects: (a) Highway Alignment Project in Nepal (1980s), (b) Parbati Hydroelectric Project (1980s-1990s);
- Prepared Landslide Hazard Zonation and Seismic Microzonation maps: (a) along the pilgrimage route corridors in U.K. and H.P. states in Northern India (1990s-2000s), (b) national highway along Shillong-Silchar-Aizawl route corridor in NE India (2000s), (c) seismic micro-zonation of Doon valley in collaboration with ITC, the Netherlands and Wadia Institute of Himalayan Geology, Dehradun (2000s);
- Provided advisory support in National Geomorphological and Lineament Mapping Project of ISRO in collaboration with Geological Survey of India, in numerous developmental and geohazard projects of Uttarkahand state and Public Sector enterprises (2010s).
The state of the art facility in the department includes ‘hypespectral lab’, ‘engineering geological lab’ and ‘geophysical lab’ hosting VNIR-SWIR spectroradiometers, FTIR spectrometer for infra-red region (2-16 mm), multi-frequency bi-static ground penetrating radar (GPR), vertical electrical sounding, IP resistivity meter, permanent GNSS stations (CORS), dual frequency geodetic GNSS systems, seismic stations with broad band seismometer (BBS) and strong motion accelerograph (SMA), 48 channel engineering seismograph, and direct shear and tri-axial shear strength apparatus for measuring geotechnical properties of rocks and soils.
The present R&D thrust areas of the department includes:
- Mapping, monitoring and modelling of landslide, engineering geological study for slope stability analysis and infrastructure development
- Co-seismic and inter-seismic deformations, geodynamics of Himalaya and earthquake precursor study
- Microwave remote sensing and SAR interferometry for monitoring of land surface deformation due to earthquake, mining and groundwater depletion
- Hyperspectral image analysis for mineral abundance mapping and targeting
- Thermal remote sensing for thermal anomaly detection and monitoring of geological phenomena
- Glacier morphology, spatio-temporal dynamics and climate change study
- Planetary geology of Moon and Mars including characterization of planetary surface and processes
In many of the R&D projects, the department has been collaborating with the premiers academic and R&D organizations and stakeholders in the country: (1) Wadia Institute of Himalayan Geology, (2) Geological Survey of India, (3) Central Ground Water Board, (4) Survey of India, (5) IIT (ISM) Dhanbad, (6) Central Institute of Mining and Fuel Research, CSIR, (7) Coal India Ltd., (8) Aryabhatta Research Institute of Observational Sciences, Nainital.
Geosciences conducts full time academic M. Tech. course in collaboration with Andhra University along with Nine Months PG Diploma course in RS & GIS
- M. Tech. in Remote Sensing and GIS (Specialization: Geosciences)
- P.G. Diploma in Remote Sensing and GIS Applications for Natural Resources Management (Specialization: Geosciences)
- PG Diploma in Remote Sensing and GIS Course of CSSTEAP (UN)
- NNRMS course in RS and GIS Technology and Applications for University/Institute/College Teachers (Specialization: Geosciences)
Geosciences conducts user defined special and customized courses of different durations. The main focus of these courses are to met the specific requirements of user segments for applications for RS & GIS in and geosciences and related areas such as:
- Microwave remote sensing and SAR interferometry for geological applications
- Hyperspectral image analysis for mineral targeting and abundance mapping
- Spaceborne geodetic observations for applications in seismicity and geodynamics
- Landslide hazard zonation and modelling
Additionally Geosciences Deptartment has been providing guidance to the students/ researchers enrolled in the following programmes:
- Post Doctoral Fellows in Earth Sciences/Remote Sensing
- Ph. D in Earth Sciences/Remote Sensing
- Post Graduate in Earth Sciences/ Remote Sensing/ Geoinformtics/ Geomatics
- Summer Internship for Post Graduate and Graduate level students
- Geodynamics and Seismicity Investigations in North-Western Himalaya.
- Mapping,Modeling and Impact Assessment of Land Subsidence in Northern India.
- Reflectance spectroscopy for mineral exploration in parts of mineral rich belt of Rajasthan and Odisha.
- Rainfall Threshold based Predictive Modelling of Slope Failure, Movement Detection and Deformation Modelling of Landslide in Garhwal Himalaya.
- Thermal anomaly detection and monitoring of coal fire in the Gondwana Coalfields of India and Coal Fire induced Land Subsidence Modelling.
- Study of seasonal variation of Stress and Strain distribution using GNSS and Correlation with Seismic Activity in Northwest Himalaya
- Assessment of potential vulnerability of western Himalayan glaciers to climate change
- Systematic approach for development of spectral library and characterization, mapping and modelling of target mineral/hydrocarbon using air-borne and space-borne inputs
- Analysis of Chandrayaan-2 Imaging Infra-Red (IIRS) Spectrometer and Terrain Mapping Camera (TMC-2) data for detection of lunar surface mineralogy, endogenic water/ hydroxyl and morphology at selected target sites and their terrestrial analogues
- GNSS receiver and analyser (CORS and CMGI)
- Thermal Imaging Camera
- Ground penetrating radar (600/200/100/40/25 MHz)
- IP and Earth Resistivity meter (40 Channel ERT)
- 48 Channel Engineering Seismograph
- Seismic station (BBS and SMA)
- Thermal spectro-radiometer
- Laser Distance Meter and Total station system
- Portable weather station and Field weather station
- Vibrating wire Piezometer and Multi-point Borehole Extensometer
- GPS with barometer and Filed camera, compass
- Advance computing facility: Workstations, Desktops, Laptops
- ERDAS Imagine, Leica Photogrammetry Suite, RAMMS, SARSCAPE, GAMMA, ArcGIS, SPSS, Matlab, ENVI, IDL, Trimble Pivot, Leica Spider, GAMIT/GLOBK, GMT, Bernese, SWAN, RES2DINV, RockWorks, Geotest and Summit acquisition software.
- Hyperspectral Lab – VNIR, SWIR and TIR range spectral analysis of rocks and minerals
- Engineering geology lab: geotechnical instrument to determine comprehensive, tensile and shear strength of rocks/soil
Photographs of Recently executed feild works & projects
A) As a part of ISRO-NASA AVIRIS project campaign, field spectra were collected at Matun rock phosphate mine, Udaipur, Rajasthan. B) Multi-channel engineering seismograph based survey for Vs30 determination and seismic hazard analysis.
Detection of Ground water using geophysical surveys [ A) Multi-Channel IP resistivity, B) VES resistivity] in fracture zones identified by satellite image interpretation in Mussoorie hills.
As a part of ISRO EOAM project, campaign mode survey using geodetic GNSS receivers is carried out by GDMS, IIRS to establish Indian plate motion and crustal shortening of Himalaya.
DInSAR based observation was compared with sub-surface observation by drilling bore wells up to a depth of 100-120m and by installing vibrating wire multi-point borehole extensometer (MPBX) and vibrating wire piezometer at selected test sites in NW India.
As a part of the ongoing EOAM project on Geodynamics and Seismicity of western Himalaya, Three Continuously Operating Reference Station (CORS)/ Global Satellite Navigation System (GNSS) stations have been installed at Pant Nagar Mussoorie and Gopeshwar.
As a part of the ongoing EOAM project on Geodynamics and Seismicity of western Himalaya, seismic station consisting of Broadband seismometer and strong motion accelerograph is installed at Mussoorie and Nainital to monitor earthquakes in Garhwal Himalaya.
A) Automated Weather Stations have been installed at Joshimath, Tangni to model rainfall triggered landslides in Garhwal Himalaya. B) Active faults interpreted from satellite images are confirmed by Multi-frequency Ground Penetrating Radar survey.
A) Engineering Geology laboratory, augmented at GDMS, IIRS to support landslide modelling. B) Hyperspectral lab, augmented at GDMS IIRS.
:Dr. R. S. Chatterjee
Designation : Scientist/Engineer- SG, Head, Geosciences Department, Indian Institute of Remote Sensing, ISRO, Department of Space, Govt. of India, 4-Kalidas Road Dehradun
Phone : 91-135-2524156 , 9412941296
Email : rschatterjee[At]iirs[dot]gov[dot]in