Geosciences and Geohazards Department (GSGHD), formerly known as Geosciences Division, is one of the oldest departments of IIRS established in 1966 to provide professional training to technical staff of organisations dealing with earth sciences applications, such as mineral and oil exploration, engineering geological survey and mapping, geological survey, and groundwater exploration. While the initial focus was on intensive analysis of aerial photographs for geoscientific applications, courses and their contents have evolved over last four decades keeping pace with the technological developments. Digital image processing, GIS based modelling, SAR interferometry, hazard and risk analysis are now the integral parts of the course contents. Besides regular programmes, the department also organises special courses on ground water, microwave remote sensing, SAR interferometry, hyperspectral image analysis, mineral exploration, neotectonics, and geoinformatics in disaster management. It has successfully executed a number of research, operational and consultancy projects in different fields of geological sciences. The department is adequately equipped with modern class room, computer lab, and a variety of instruments for ground measurements related to geosciences discipline. The state of the art facility includes ‘hyperspectral lab’, ‘Engineering Geological Lab’ and ‘field-based geophysical lab’ hosting high-end spectroradiometers in VNIR-SWIR (400-2500nm) region, Fourier transform infrared spectroscopy (FTIR) spectrometer in infra-red region (2-16 µm), direct shear test equipment (max. load 2KN & 50 KN), point load equipment, Schimdt hammer, Rock Triaxial, Atterberg limit testing equipments, soil penetration testing equipment, Core cutting, Grinding apparatus, Brazilian Test, Slake Durability, Moisture Meter, multi-frequency and bi-static ground penetrating radar (GPR), Vertical Electrical Sounding, IP Resistivity meter for 2-D tomography of sub-surface material, continuously operating reference station (CORS)/ permanent GNSS stations, dual frequency GNSS system for campaign mode survey for crustal deformation studies, seismic station with broad band seismometer and strong motion accelerograph for seismological research, and 48 channel engineering seismograph for sub-surface material characterisation in terms of seismic wave propagation properties. The lab facilities are aimed to complement and supplement information content from EO satellites.
Thrust areas: Mapping, monitoring and modelling of geological hazards, microwave remote sensing and SAR interferometry, hyperspectral and thermal image analysis, groundwater exploration and geochemistry, structural and neotectonic analysis, geological mapping and modelling for mineral deposit study, engineering geological survey for infrastructure development & slope stability analysis, environmental analysis, glaciology and climate change studies, and planetary geology of Moon and Mars.
The Group conducts full time academic M. Tech. course in collaboration with Andhra University along with Nine Month PG Diplmoa course in RS & GIS
- M. Tech in Natural Resources Management (Geosciences)
- P.G. Diploma in Natural Resources Management (Geosciences).
- P.G. Diploma Course in Remote Sensing & GIS of CSSTEAP (UN)
- NNRMS course (for University/Institute/College Teachers)
Geosciences and Disaster Management Studies Group 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:
- Earth Observation for Disaster Response, Recovery and Preparedness sponsored by UNDP/ CSSTEAP.
- Hyperspectral imaging technology and applications attended by participants.
- Advances in RS & GIS Technology and Applications attended by participants from Industry.
- RISAT-UP Course on Radar Remote Sensing attended by 37 participants from various organizations.
- Geoinformatics Applications in Disaster Management attended by members of Govt. College of Engineering, Karad, Maharashtra.
- Geoinformatics for Disaster Response attended by participants from National Disaster Response Force (NDRF), Ministry of Home Affairs, GoI
- Applications of Geoinformatics in Geomoprhology attended by participants from GSI, GoI
- SAARC Training Programme on Geoinformatics for Disaster Management, attended by participants sponsored by SDMC, New Delhi.
- Application of Geoinformatics and Spatial Information for Disaster Management for SAARC countries attended by participants from South Asian countries.
- High Resolution Image Analysis for Disaster Management Studies, three courses attended by participants, organized in collaboration with ITC (University of Twente, The Netherlands).
- Hyperspectral Image Analysis in Geology attended by participants.
- Applications of Remote Sensing and GIS in Ground Water Studies was organized for Central Ground Water Board (CGWB) attended by participants.
Additionally the division has been providing guidance during project to students enrolled in the following courses:
- Post Doctorate Fellows in Earth Sciences/Remote Sensing
- Ph. D in Earth Sciences/Remote Sensing
- M.Sc. in Geoinformatics
- M.Sc. / M. Tech of other Indian and foreign institutes
- Summer Training of Post Graduate and Graduate level students
- Himalayan Geodynamics and Seismicity (EOAM)
- Mapping, Modeling and Impact Assessment of Land Subsidence in Northern India using DInSAR (EOAM)
- Thermal anomaly detection and monitoring of coal fire in the Gondwana Coalfields of India using time-series coarse resolution multispectral TIR data & impact analysis (EOAM)
- Reflectance spectroscopy for mineral exploration in parts of mineral rich belt of Rajasthan and Odisha (EOAM)
- Rainfall threshold for initiation of landslides and decoupling of spatial variations in precipitation, erosion, tectonics in Garhwal Himalaya & DInSAR and temporal InSAR based landslide movement detection and modeling (DMSP).
- Risk assessment, simulation/ modelling and characterization of geotechnical properties of vulnerable slopes and landslides in Garhwal Himalaya (TDP).
- Study seasonal variation of Geodetic Stress and Strain distribution using GNSS and Correlation with Seismic Activity in northwestern Himalaya (TDP).
- Assessment of potential vulnerability of western Himalayan glaciers to climate change (TDP)
- GNSS Receivers
- Resistivity Meter (VES & ERT)
- Laser Distance Meter
- High end GPS devices
- Vibrating wire type Piezometer
- Ground Penetrating Radar (GPR)
- Spectro-radiometer (ASD & FTIR)
- Single Point Borehole Extensometer
- Total Precession System (Total station)
- Direct Shear Test Electronic Equipment
- Engineering Seismograph (48 Channel)
- High end work stations and desktops
- ILWIS, ERDAS Imagine, ArcGIS, ENVI, SARSCAPE, SPSS, Bernese, Gamit, Pivot etc.
- Continuous Operating Reference System (CORS) - 4
- Automated Weather Station (AWS) - 15
- Broadband Based Seismograph & Strong Motion Accelograph
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. P. K. Champati Ray
Designation : Scientist/Engineer- SG, Group Head Geosciences & Disaster Management Studies and Head Geosciences & Geohazards Department
Phone : 91-135-2524153
Email : champati_ray[At]iirs[dot]gov[dot]in
Field of Expertise : Applied Geology, Geological Hazards, Remote Sensing, GIS Modelling, Mathematical Geology