A5003359724- Seismic Imaging and Inversion Techniques
- Methane Hydrates and Related Phenomena
- Hydrocarbon exploration and reservoir analysis
- Seismic Waves and Analysis
- Hydraulic Fracturing and Reservoir Analysis
- earthquake and tectonic studies
- Cryospheric studies and observations
- Geological and Geophysical Studies
- Landslides and related hazards
- Seismology and Earthquake Studies
- Climate change and permafrost
- Geological and Geochemical Analysis
- High-pressure geophysics and materials
- Drilling and Well Engineering
- Reservoir Engineering and Simulation Methods
- Atmospheric and Environmental Gas Dynamics
- Geological formations and processes
- Geophysical and Geoelectrical Methods
- Geochemistry and Geologic Mapping
- Flood Risk Assessment and Management
- Geophysics and Sensor Technology
- Geology and Paleoclimatology Research
- Geophysical Methods and Applications
- Arctic and Antarctic ice dynamics
- Earthquake Detection and Analysis
Wadia Institute of Himalayan Geology
2018-2024
Academy of Scientific and Innovative Research
2017-2024
Central Ground Water Board
2022
National Geophysical Research Institute
2012-2021
Council of Scientific and Industrial Research
2000-2016
National Oceanography Centre
2010
University of Southampton
2010
University of Cambridge
2000
A deadly cascade catastrophic landslide in Uttarakhand state India on February 2021 damaged two hydropower plants, and more than 200 people were killed or are missing. Shugar et al. describe the of events that led to this disaster. massive rock ice avalanche roared down a Himalayan valley, turning into debris flow upstream from first plants. The sequence highlights increasing risk Himalayas caused by increased warming development. Science , abh4455, issue p. 300
Indian National Gas Hydrate Program Expedition 01 has established that clay‐rich marine sediment from the Krishna‐Godavari (KG) basin in eastern margin hosts one of richest gas hydrate deposits world. Resistivity at‐bit images and pressure cores reveal morphology varies complex vein structures (grain displacing) to invisible pore filling. Existing rock physics models, which relate acoustic data situ concentrations, generally assume isotropic pore‐filling hydrate, yields misleading...
Abstract On 7 February 2021, Chamoli district (Uttarakhand, India) was devastated by a deadly rock-ice avalanche that led to large causality of more than 200 people and huge economic loss. We found noteworthy sequence precursory signals main failure/detachment preceded dynamic nucleation phase. The appears have been initiated seismic precursors which were continuously active for 2:30 h prior detachment. amplitude, frequency characteristics signal-to-noise ratio variation detected tremors...
This paper aims to broadly understand the response of glaciers thick and thin debris cover from one less explored regions (Zanskar) Himalaya. The present study is based on ground-based measurements (from 2015 2019), satellite data (since 1971), available topographic maps (at a 1:50,000 scale). includes snout retreat, changes in equilibrium line altitude (ELA), surface elevation, modeled mass balance debris-covered Pensilungpa (Suru River basin) Durung-Drung (Doda western Indian Himalaya,...
We have imaged the crustal configuration of Mahanadi delta eastern India by modeling both wide‐angle seismic and Bouguer gravity data. This has undergone several stages rifting, subsidence, sedimentation, uplift. It is one important Gondwana sedimentary basins where widespread volcanic activity occurred during Early Cretaceous along rift zones. corresponds to breakup greater from east (e.g., present Antarctica Australia). derived a five‐layer model with velocities 6.0, 6.5, 7.0, 7.5 km/s...
The most commonly used marker for gas-hydrates is a bottom simulating reflector or BSR on seismic section. not lithological interface but physical boundary between the bearing sediments above and free-gas saturated below. From visual inspection of section, it hard to demarcate zones laden sediments. At many places in world, BSRs have been observed recovered by drilling. Again, identified no found Therefore, we need study certain attributes ascertain whether related identify without BSR. It...