- GNSS positioning and interference
- Earthquake Detection and Analysis
- earthquake and tectonic studies
- Ionosphere and magnetosphere dynamics
- Geophysics and Gravity Measurements
- High-pressure geophysics and materials
- Geomagnetism and Paleomagnetism Studies
- Solar and Space Plasma Dynamics
- Seismology and Earthquake Studies
- Solar Radiation and Photovoltaics
- Inertial Sensor and Navigation
- Geological and Geochemical Analysis
- Solar-Powered Water Purification Methods
- Time Series Analysis and Forecasting
- Satellite Communication Systems
- Advanced Computational Techniques and Applications
- Earthquake and Tsunami Effects
- Solar Thermal and Photovoltaic Systems
Fourth Paradigm Institute
1970-2025
Academy of Scientific and Innovative Research
2020-2021
Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology
2016
Council of Scientific and Industrial Research
2010
Gandhigram Rural Institute
2005-2007
This study for the first time used Indian GPS network data along with interpolated National Centers Environmental Prediction (NCEP)/National Center Atmospheric Research (NCAR) reanalysis meteorological to estimate precipitable water vapor (PWV) over atmosphere a 4 year period (2001–2004) at 21 and 7 International GNSS Service stations. The site‐specific daily average required estimation these sites is obtained by performing vertical interpolation on 2.5 × 2.5° gridded NCEP/NCAR global set...
Abstract The ionosphere response to the great intraplate Indian Ocean earthquake of 11 April 2012 ( M w 8.6) and its largest aftershock 8.2) is analyzed using GPS‐aided total electron content (TEC) measurements. Data from dense GPS networks, SuGAr (Sumatran Array) permanent Andaman‐Nicobar array, formed near‐field observations at distances 250–1200 km epicenter. Stations such as IISC, DGAR, few others provided measurements over 2000 coseismic ionospheric disturbances (CIDs) with a...
The effect of the 26 December 2004 Sumatra–Andaman earthquake on Indian continent has been estimated from analysis GPS data permanent and campaign sites in continent. Co‐seismic displacements at these have determined for 11 stations national network, five southern India, four Andaman Nicobar Islands. results indicate co‐seismic eastward 12–20 mm India almost directly west Andaman, 1.8–6 Central insignificant displacement Himalayas. Permanent north‐east which lie towards northward extension...
Position time series from permanent Global Navigation Satellite System (GNSS) stations are commonly used for estimating secular velocities of discrete points on the Earth's surface.An understanding background noise in GNSS position is essential to obtain realistic estimates velocity uncertainties.The current study focuses investigation obtained thirteen located Nepal Himalaya using spectral analysis method.The power spectrum has been estimated Lomb-Scargle iterative nonlinear...
Background/Objectives: Solar-still based desalination technique is applied for converting saline water into potable one. In this work have been developed a single slope basin solar still integrators with honeycomb encapsulated collector to enhance the efficiency of system. Methods/Statistical analysis: Thermal model expressions natural circulation between and still, summer winter, hourly variation temperature glass cover, mass, liner derived. A numerical calculation has made one typical days...
DOI = 10.3126/hjs.v5i7.1335 Himalayan Journal of Sciences Vol.5(7) (Special Issue) 2008 p.156
<p>The GNSS (Global Navigation Satellite Systems) position time series contains various geophysical signals which can be grouped into tectonic and non-tectonic signals. The include the of crustal deformation, volcanic transient earthquake even landslide. On other hand, signal contributions surface mass loadings induced by temporal variations within Earth’s system. effects tidal components these are generally get removed during routine data processing. However,...