Petrophysical Evaluation of Carbonate ReservoirSatellite data modelling for field model development

• Spatial variation of the magnetic field of the Moon and their causative sources revealed through magnetization and dynamo mechanism• Revealed magnetic anomalies at the lunar antipodes of 4 large impact crater basins in addition to 5 previously known using the lunar-wide magnetic field models derived from Lunar Prospector data.• Estimated thermal structure of the Red sea and the Indian subcontinent using constraints from thermal models, spectral analysis of aeromagnetic data and… Show more • Spatial variation of the magnetic field of the Moon and their causative sources revealed through magnetization and dynamo mechanism• Revealed magnetic anomalies at the lunar antipodes of 4 large impact crater basins in addition to 5 previously known using the lunar-wide magnetic field models derived from Lunar Prospector data.• Estimated thermal structure of the Red sea and the Indian subcontinent using constraints from thermal models, spectral analysis of aeromagnetic data and magnetic field models. • Lithospheric magnetization of the oceanic crust from high-resolution ocean floor ages, plate reconstructions and the latest high-resolution field model from CHAMP satellite data.• Potential field modeling of the sub-basaltic sediments along the continental margins in the western offshore region of India.• Advisor to MSc/M.Tech dissertations on: Geophysical Investigation of the subsurface, Well Log Analysis using global optimization methods, petrophysical evaluation. • PhD Dissertation guidance (ongoing): Petrophysical analysis of Carbonate Reservoir ; Sub-basalt imaging from geophysical methods; Magnetic field modeling of the Lunar Crust; ANN and Machine Learning in Earth Sciences. • Contributed to research publications in conferences, extended abstracts and journals and received research grant on lunar magnetics, landslide studies and development of GPR systems. Show less

• *One of the lead developers of the FIRST “World Digital Magnetic Anomaly Map”. The map is produced by filtering airborne, marine and satellite magnetic data and modeling using spherical harmonics. • Estimated tectonic and compositional variation of Tibetan and Himalayan crust from heat flow and magnetic field data. • Computed the time-varying component of the induced crustal magnetic field on a global scale, which otherwise is assumed constant over the geological time scale. The… Show more • *One of the lead developers of the FIRST “World Digital Magnetic Anomaly Map”. The map is produced by filtering airborne, marine and satellite magnetic data and modeling using spherical harmonics. • Estimated tectonic and compositional variation of Tibetan and Himalayan crust from heat flow and magnetic field data. • Computed the time-varying component of the induced crustal magnetic field on a global scale, which otherwise is assumed constant over the geological time scale. The models are used for geomagnetic field modeling.• Estimated the Depth to the Curie Isotherm from heat flow and magnetic field modeling by integrating the surface heat flow data, borehole temperature logs and aeromagnetic data. Client: Royal Dutch Shell, The Netherlands o Facilitated in the development of software to integrate GIS on DOT NET technology for estimation of thermal parameters (radiogenic heat production and thermal conductivity) and depth to the Curie Isotherm.o Provided quality assurance during the execution of the project; deliverables included Curie depth maps for North America, Europe, Australia and Middle East.• Contributed to publications and wrote the research proposal on electromagnetic studies from global and regional ocean flow models as unsolicited proposal. The proposal was awarded.* Received widespread media coverage Eos Trans. AGU, 88(25), pg 263, 19 June, 2007;  BBC news http://news.bbc.co.uk/1/hi/sci/tech/6982485.stm;  Spain’s most read newspaper – El Pais http://www.elpais.com/articulo/futuro/mapa/magnetico/mundial/elpepusoc /20071114elpepifut_1/Tes;  Australian Society of Expl. Geophys. (http://www.publish.csiro.au/?act=view_file&file_id=PVv2007 n130.pdf) ;  The Leading Edge, SEG publication, pg 32-33, Jan, 2008. Show less

• Lectured Undergraduate Courses in Geophysics.• Supervised Graduate Students on topics related to thermal modeling, signatures of Large Igneous Provinces in satellite data and crustal structure of Java Trench. Geophysical Fieldwork in the Yorkshire Dales.• Provided technical inputs to 1-D & 2-D heat flow and magnetic field modeling strategies during the meeting with Shell Oil in Houston, USA. The consultancy project was awarded.

• Developed algorithms to compute the remanent magnetization grids for all oceans following reconstruction of ocean floor age map and plate rotation models. o The grids were utilized to understand sources for magnetic anomalies over subduction zones. • Modeled and interpreted satellite-derived global magnetic anomaly maps to infer physical properties and sub-surface extension of tectonic units beneath younger sediments – in Central US, Europe and Australia.• Contributed to… Show more • Developed algorithms to compute the remanent magnetization grids for all oceans following reconstruction of ocean floor age map and plate rotation models. o The grids were utilized to understand sources for magnetic anomalies over subduction zones. • Modeled and interpreted satellite-derived global magnetic anomaly maps to infer physical properties and sub-surface extension of tectonic units beneath younger sediments – in Central US, Europe and Australia.• Contributed to publications and wrote the research proposal on the evaluation of global magnetic fields for the NASA postdoctoral fellowship program. The NASA postdoctoral fellowship was awarded in March 2006. Show less

• Satellite-derived magnetic field models: Modeled magnetization beneath West African craton (magnetization extends in upper mantle); the Bangui anomaly in central Africa (geological in origin); the Chukotsk block in Eastern Siberia (due to continental-continental collision) and the central Greenland (non-magnetic lower crust).• Developed a new 3-D global magnetization model by combining geologic, tectonic, seismic crustal thickness and rock magnetic properties information on ArcGIS. An AML… Show more • Satellite-derived magnetic field models: Modeled magnetization beneath West African craton (magnetization extends in upper mantle); the Bangui anomaly in central Africa (geological in origin); the Chukotsk block in Eastern Siberia (due to continental-continental collision) and the central Greenland (non-magnetic lower crust).• Developed a new 3-D global magnetization model by combining geologic, tectonic, seismic crustal thickness and rock magnetic properties information on ArcGIS. An AML code on ArcGIS server is developed for the purpose.• Contributed to the research publications; provided technical input to the project on magnetic field modeling for funding to DFG (Deutsche Forschungsgemeinschaft). Show less