Dr. V.P. Dimri made significant contributions in geophysical data analysis and interpretation for a variety of applications  to Indian earthquakes and exploration of hydrocarbons and groundwater. His significant finding is self organized fractal seismicity of reservoir triggered earthquakes in Koyna-Warna, India. Currently Dr. Dimri along with others is modelling Tsunami Wave Propagation from sea earth quakes originated from Sumatra and Makran subduction regions. Dr. Dimri reformulated the problems of geophysics for realistic geology after careful analysis of physical properties such as density, susceptibility, reflectivity etc from seceral deep boreholes including German Continental deep Drilling project(KTB), which follow fractal distribution rather than hitherto assumed random distribution for mathematical simplicity. His theoretical work established a relation between potential field and their sources and thus developed a new technique of scaling spectral analysis to delineate subsurface complex geological structures for hydrocarbon exploration. A new way for modelling of any complex object lying beneath the earth surface by using fractal geometry, has been filed as US patent and has many applications like Enhanced Oil Recovery, aquifer modelling etc.

The eve of Republic day of India i.e on 26th January 2010 Dr. Vijay Prasad Dimri was awarded the Prestigious Padmashri award, one of the highest three Civilian Awards of India. The  Award is given in recognistion of his Distinguished service in the Science and the Engineering Stream. The Padma Awards are confered by the president of India at a function to be held at Rastrapathi Bhavan, sometime around March/April 2010.

For his outstanding work, American Geophysical Union has selected him for Lorenz Award Lecture in the field of Nonlinear Geophysics,  received at AGU Fall Meeting in SanFransico in December, 2007.

Earlier Dr. Dimri established a parallelism between deconvolution and inversion, two important tools of signal processing, and thus results and concepts of one can be applied to another and vice versa. The Wiener filter which is commonly used in seismic deconvolution procedure was modified to apply in inversion of gravity & magnetic measurements to map the subsurface density and susceptibility respectively. One of the significant findings of Dr. Dimri was to show that a single channel time varying filter is equivalent to multichannel time invariant filter so that the well developed algorithms for processing of the stationary data could be easily applied to non-stationary geophysical data. Dr. Dimri extended the well known maximum entropy method to nonstationary and complex geophysical data analysis. All these new findings he wrote in form of a book entitled “Deconvolution and Inverse Theory” published by Elsevier, 1992 and Prof. M. Koch declared the book as a didactical master piece and reference book in the field of Inverse theory.

Dr. Dimri was the first person to quantify the well known ambiguity of gravity interpretation in terms of number of false gravity anomalies associated with gravity measurement using the concept of entropy and channel capacity of Information theory, which is a part of his PhD work. Later he hypothesized covariance gravity model for the Bay of Bengal, Indian Ocean.

Dr. Dimri, with more than 4 and 1/2 years of R&D experience in Norway and Germany, has designed major scientific programmes in sectors of ‘Energy security’, ‘Water security’, ‘Risk assessment’ ‘Ocean studies’ and ‘Frontier research areas of international repute’.

In capacity of Director, NGRI, he steered many national and international projects. Fellow of Indian National Science Academy, National Academy of Sciences, and AP Akedemy of Sciences, Dr. Dimri supervised 7 Ph.D’s (in India & abroad), 4 PDF’s (under TWAS) and authored 3 books and has got more than 100 standard publications to his credit.  

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Director,
National Geophysical Research Institute,
Uppal Road, Hyderabad - 500 007,
INDIA