Professor V.P. Dimri, Director

 

ID No 188           dir_photo
Designation Director
Division/Section Fractals in Geophysics
Date of Joining CSIR 9 January, 1975
Date of Joining NGRI 2 July, 1970
Phone (Off) +91 - (0)40-23434600
Phone (Res)  
Mobile  
Official E-mail Address director @ngri.res.in
Title of PhD Thesis  ON SOME APPLICATIONS OF INFORMATION AND FILTER THEORY CONCEPTS TO GEOPHYSICAL INTERPRETATION PARTICULARLY TO GRAVITY STUDIES
Areas of Research Interest Fractals, Inversion, Deconvolution and Frontier Geophysical Problems  
Educational Qualifications

 PhD[Geophysics], FNA, FNASc, FTWAS

  
Awards/Achievements  http://www.ngri.org.in/htmlfiles/aboutngri/ourdirector/honours.html
Papers/Publications
  • Negi, J.G., Dimri, V.P. and Garde, S.C., 1973, Ambiguity assessment of gravity interpretation for an inhomogeneous multilayer sedimentary basin, Jour. Geophys. Res., 78, 3281-3286.
  • Negi, J.G. and Dimri, V.P., 1977, Three dimensional statistical gravity disturbance model, Geophys. J. R.A.S., London, 48,187-196.
  • Negi, J.G., and Dimri, V.P., 1978, Reply to Ulrych, T., Geophy. J. RAS, London, 55, 269-270.
     
  • Negi, J.G., Singh, R.N., Dimri, V.P. and Rai, S.N., 1979, Mathematical modelling of earths internal process, Geophy. Research Bull., IUGG Special issue, 17,233-241.
     
  • Negi, J.G., and Dimri, V.P., 1979, On Wiener filter and maximum entropy method for multichannel complex systems, Geophysical Prospecting, 27,156-165.
  • Negi, J.G., and Dimri, V.P., 1984, On generalization of maximum entropy method for processing of multichannel nonstationary complex valued data, IEEE Transactions on Geosciences and Remote Sensing, GE-22, 461-466.
     
  • Negi, J.G., Dimri, V.P., Agarwal P.K. and Pandey, O.P., 1986, A spectral analysis of the aeromagnetic profiles for thickness estimation of flood basalts of India, Explo. Geophys., 17,105-111.
     
  • Dimri, V.P., 1986, On the time varying Wiener filter, Geophysical Prospecting, 34, 904-912.
     
  • Dimri, V.P. and Srivastava, Kiriti, 1987, Ideal performance criteria for deconvolution operator, Geophysical Prospecting, 35, 539-547.
     
  • Dimri, V.P. and Srivastava, Kirti, 1990, The optimum gate length for time varying deconvolution operator, Geophysical Prospecting, 38, 405-410.
     
  • Dimri, V.P., 1991, Design of the unimodular shaping filter, IEEE Transactions on Signal Processing (Formerly ASSP), 39, 1889-1891.
     
  • Maus, S. and Dimri, V.P., 1994, Scaling properties of potential fields due to scaling sources, Geophys. Res. Lett., 21, 891-894.
     
  • Maus, S. and Dimri, V.P., 1995, Basin depth estimation using scaling properties of potential fields, Jour. AEG, 16,131-139.
     
  •  Maus, S. and Dimri, V.P., 1995, Potential field power spectrum inversion for scaling geology, Jour. Geophy. Res. 100, 12605-12616.
     
  • Maus, S. and Dimri V.P., 1996, Depth estimation from the scaling power spectrum of potential field Geophysical J. Int., 124,113-120.
     
  • Dimri, V.P., 1997, Report on workshop Application of fractals in earth sciences, DST News Letters, v.8, p.16.
     
  • Dimri, V.P., 1998, Opinion, Gravity and magnetic in Exploration Geophysics, IVR Murthy, JGSI publication, JGSI, v. 53, No 2. p. 254.
     
  • Dimri, V.P. and Abhey Ram, 1998, Preliminary results of Geophysical interpretation along Nagaur-Jhalawar, DST News Letters, v. 8, No. 2, p.9-10.
  • Dimri, V.P., 1998, Report on workshop Application of fractals in earth sciences, Jour. Geol. Soc. India, v. 51, 115.
     
  • Dimri, V.P., 1998, Fractal behavior and detectibility limits of geophysical surveys, Geophysics, 63, 1943-1947.
     
  • Sunmonu, L.A. and V.P. Dimri, 1999, Fractal analysis and seismicity of Bengal basin and Tripura fold belt, Northeast India, JGSI, 53, 587-592.
  • Bansal, A.R. and V.P. Dimri, 1999, Gravity evidence for mid crustal structure below Delhi fold belt and Bhilwara super group of western India, Geophysical Research Letters, 26, 2793-2795.
     
  • Sunmonu, L.A. and V.P. Dimri, 2000, Fractal geometry of faults and seismicity of Koyna-Warna region west India using landsat images, Pure and Applied Geophysics, 157, 1393-1405.
  • Ravi prakash, M. and V.P., Dimri, 2000, Distribution of the after shock sequence of Latur earthquake in time and space by fractal approach, JGSI, 55, 167-174.
     
  • Tommy, T., V.P., Dimri and B. Ursin, 2001,Comparison of deconvolution methods for scaling reflectivity, Journal of Geophysics, XXII No. 2,3,4, 117-123.
     
  • Sunmonu, L.A., V.P., Dimri, M. Ravi Prakash and A.R., Bansal, 2001, Multifractal approach of the time series of M > 7 earthquakes in Himalayan region and its vicinity during 1985-1995, JGSI, 58, 163-169.
     
  • Bansal, A.R. and V.P., Dimri, 2001, Depth estimation from the scaling power spectral density of nonstationary gravity profile, Pure and Applied Geophysics, 158, 799-812.
  • V.P., Dimri and M. Ravi Prakash, 2001, Scaling of power spectrum of extinction events in the fossil record, Earth and Planetary Science Letters, 186, 363-370. (Reviewer recommended for publication in Nature, but Editor of Nature did not approve it for lack of space).
     
  • V.P., Dimri and M. Ravi Prakash, 2002, Reply to comments by Dr. Kirchner on Scaling of power spectrum of extinction events in the fossil record, Earth and Planetary Science Letters, 192, 617-621.
  • V.P. Dimri, R.P. Srivastava and Nimisha Vedanti, 2003,Computation of gravity response over a basin of fractal geometry, Historical Expanded Abstracts Series, Society of Exploration Geophysicists (SEG) USA, pp 596-598.
  • V.P. Dimri, Nimisha Vedanti and R.P. Srivastava, 2003,An efficient and accurate algorithm for non-linear inversion of resistivity data following Occams inversion scheme, Historical Expanded Abstracts Series, Society of Exploration Geophysicists (SEG) USA, pp 5001-5003.
     
  • Nimisha Vedanti and V.P., Dimri, 2003, Fractal behavior of electrical properties in oceanic and continental crust, Indian Journal of Marine Sciences, Vol. 32(4), 273-278.
  • Richa Jain, B.K., Rastogi and V.P., Dimri, 2003, Fractal Dimension of 1999 Chamoli Earthquake near Garhwal Himalayas, Pure and Applied Geophysics, 160, 2329-2341.
  • V.P.Dimri, Nimisha Vedanti and Ravi P. Srivastava, 2004, Scaling in Geophysics: Advancement in Hydrocarbon Exploration Techniques, Oil Asia Journal, Vol. 24 (2), pp 49-53.
  • R.P., Srivastava, S., Chattopadhyay, Nimisha Vedanti and V.P., Dimri, 2004, Gravity and magnetic studies over the circular geomorphic crater looking structures in the Narmada traps, central India, Jour Geol. Soc. India, 64,97-101.
     
  • Kirti Srivastava and V.P., Dimri, 2004, Stable Block Toeplitz Matrix for the Processing of Multichannel Seismic Data, Indian Journal of Marine Sciences, Vol. 33(3), p. 215-219.
  • Mandal, P., Mabawonku, A.O. and Dimri, V.P., 2005, Self Organized fractal seismicity of reservoir triggered earthquakes in the Koyna-Warna seismic zone, western India, Pure and Applied Geophysics, 162, p.73-90. (DOI 10.1007/s00024-004-2580-8).
  • Dimri, V.P., 2005, Some applications of fractal theory in potential fields, Himalayan Geology, 26(1) 161-164.
     
  • Bansal, A.R. and Dimri, V.P., 2005, Interpretation of gravity data over the 850 E ridge and Afanasy Nikitin seamount using spectral method, Indian Journal of Marine Sciences, 34 (3), 279-284.
  • Dimri, V.P. (with others), 2005, A note on the 26th December 2004 Great Sumatran Earthquake, JGSI, 65(2), 249-251.
     
  • V.S. Singh, M.V. Nandakumar, M.R.K. Sarma and V.P.Dimri, 2005, Changes in Groundwater regime at Neil Island (South Andaman) due to earthquake and tsunami of 26 December 2004, Current Science, 88 (12), 1984-1987.
     
  • Dimri, V.P., Nimisha Vedanti and S. Chattopadhyay, 2005, Fractal analysis of aftershock sequence of Bhuj earthquake - a wavelet based approach, Current Science, 88(10) 1617-1620.
  • Nimisha Vedanti, Ravi P. Srivastava, John Sagode and V.P., Dimri, 2005, An efficient 1-D Occams inversion algorithm using analytically computed first and second order derivatives for dc resistivity soundings, Computers and Geosciences, 31, 319-328.
  • Bansal, A.R., and Dimri, V.P., 2005, Self-affine covariance gravity model for the Bay of Bengal, Geophysical J. Int., 161, 21-30.
  • Bansal, A.R., and Dimri, V.P., 2005, Depth determination from nonstationary magnetic profile for multi scaling geology, Geophysical Prospecting, 53, 399-410.
     
  • Gupta, H.K. with others and Dimri, V.P., 2005 An earthquake of M ~ 5 may occur at Koyna, Current Science, 89 (5),747-748.
  • Bansal, A.R., Rao, V.K., and Dimri, V.P., Heterogeneities in Continental Crust Derived from Gravity Data in Kutch (India), an intraplate seismic region, Gondwana Research (Submitted and Revised).
     
  • Bansal, A.R. and Dimri, V.P., Sagar, G.V., 2006, Quantitative interpretation of gravity and magnetic data over Southern Granulite Terrain using scaling spectral approach, Journal Geological Society of India.67, 469-474.
     
  • Chandra, S. with others and Dimri, V.P., 2006, Oozing of water in parts of Andhra Pradesh, India, Current Science, 90(11) 1555-1560.
     
  • Chandra, S. with others and Dimri, V.P., 2006, Water sprouting phenomena observed in parts of Andhra Pradesh - an explanation, Journal Geological Society of India, 68,157-159.
     
  • Gupta, H.K. with others, Dimri, V.P., 2006, Prediction of an M~4 Earthquake in the Koyna region comes true!, Journal Geological Society of India, 68,149-150.
     
  • Chamoli, A., Srivastava, R.P. and Dimri, V.P., 2006, Source depth Characterization of potential field data of Bay of Bengal by continuous wavelet transform, Ind. Jour. Mar. Sci., 35(3), 195-204.
     
  • Bansal, A.R. and Dimri, V.P., Sagar, G.V., 2006, Depth estimation from gravity data using the maximum entropy method (MEM) and multi taper method (MTM), Pure and Applied Geophysics, 163, 1417-1434.
  • Chamoli, A., Bansal, A.R. and Dimri, V.P., 2007, Wavelet and rescaled range approach for the Hurst exponent for short and long time series, Computer and Geosciences, 33, 83-93.
  • Dimri, V.P. and Srivastava, K., 2007, Tsunami Propagation of the 2004 Sumatra Earthquake and the Fractal Analysis of the Aftershock Activity, Ind. Jour. Mar. Sci., 36(2), 128-135.
  • Gupta, H. with others and Dimri, V.P., 2007, A new zone of Seismic Activity at Koyna, India, Journal of the Geological Society of India, 69 (6), 1145-1146.
  • Gupta, H., Shashidhar, D., Pereira, M., Rao, P., Nagesh, D., Satyanarayana, H.V.S., Saha, S., Babu Naik, R.T. and Dimri, V.P., 2007, Short term forecast for an M~4 Earthquake at Koyna, India, Journal of Geological Society of India, 70, 1091.
  • Gupta, H., Shashidhar, D., Pereira, M., Mandal, P., Rao, P., Kousalya, M., Satyanarayana, H.V.S. and Dimri, V.P., 2007, Earthquake forecast appears feasible at Koyna, India, Current Science, 93(6), 843-848.
  • Srivastava, K., Swaroopa, V., Srinagesh, D. and Dimri, V.P., 2007, Could the 12 September 2007 earthquake of southern Sumatra, Indonesia, have generated a large tsunami causing damage to the east coast of India, Current Science, 93(9), 1228-1229.
  • Srivastava, R.P., Vedanti, N and Dimri, V.P., 2007, Optimum Design of a Gravity Survey Network and its Application to delineate the Jabera-Damoh Structure in the Vindhyan Basin, Central India, Pure and Applied Geophysics, 164, 1-14 .
     
  • Chamoli, A., Bansal, A.R. and Dimri, V.P., 2007, Wavelet and rescaled range approach for the Hurst exponent for short and long time series, Computer and Geosciences, 33, 83-93.
     
  • Dimri, V.P. and Srivastava, K., 2007, Tsunami Propagation of the 2004 Sumatra Earthquake and the Fractal Analysis of the Aftershock Activity, Ind. Jour. Mar. Sci., 36(2), 128-135.
  • Chamoli, A. and Dimri, V.P., 2007, Evidence of Continental Crust over laxmi Basin (Arabian Sea) using Wavelet Analysis, Ind. Jour. Mar. Sci., 36(2), 117-121.
  • Dimri, V.P. and Chamoli, A., 2008, Development of Computational Geophysics in India, Memoir Geol. Soc. India, 68, 1-14.
  • Srivastava, K., Narain, L., Swaroopa Rani and Dimri, V.P., Quantification of crustal geotherms along with its error bounds for seismically active regions of India: A Matlab toolbox, Comp. & Geosc. (In press)
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