Welcome! I am a statistically minded geophysicist who uses modern Bayesian algorithms to make inferences about earth structure from a variety of surface measurements, such as seismic or electromagnetic surveys. Nothing is too deep or too shallow for Bayes' theorem to tackle!



Work Experience


2019  – present     Geoscience Australia

2012  – 2019           Chevron Geophysics R&D

2007 – 2010           Shell Exploration and Production


2010 – 2014           University of California, San Diego, PhD, Earth Sciences/Geophysics

2004 – 2007          Indian Institute of Technology, Roorkee, M. Tech, Applied Geophysics

2001 – 2004          University of Delhi, St. Stephen's College, B. Sc (Honours), Physics


Publications (Google Scholar)

Blatter, D., Key, K., Ray, A., Gustafson, C., Evans, R., 2019, Bayesian Joint Inversion of Controlled Source Electromagnetic and Magnetotelluric Data to Image Freshwater Aquifer Offshore New Jersey, Geophysical Journal International, Volume 218, 1822-1837

Ray, A., & Myer, D., 2019, Bayesian geophysical inversion with trans-dimensional Gaussian Process machine learning. Geophysical Journal International, Volume 217, 1706-1726

Blatter, D., Key, K., Ray, A., Foley, N., Tulaczyk, S., Auken, E., 2018, Trans-Dimensional Bayesian Inversion of Airborne Transient EM Data From Taylor Glacier, Antarctica. Geophysical Journal International, Volume 214, 1919–1936

Ray, A., Kaplan, S., Washbourne, J., Albertin, U., 2017, Low frequency full waveform seismic inversion within a tree based Bayesian framework, Geophysical Journal International, Volume 212, 522–542

Ray, A., Sekar, A., Hoversten,G. M., Albertin, U., 2016, Frequency domain full waveform elastic inversion of marine seismic data from the Alba field using a Bayesian trans-dimensional algorithm, Geophysical Journal International, Geophysical Journal International, Volume 205, pp. 915–937


Ray, A., Key, K., Bodin, T., Myer, D. & Constable, S., 2014, Bayesian inversion of marine CSEM data from the Scarborough gas field using a transdimensional 2-D parametrization, Geophysical Journal International, Volume 199, 1847–1860


Ray, A., Alumbaugh, D. L., Hoversten, G. M. and Key, K., 2013, Robust and accelerated Bayesian inversion of marine CSEM data using parallel tempering, Geophysics, Volume 78, No. 6, E271–E280


Ray, A. & Key, K., 2012, Bayesian inversion of marine CSEM data with a trans-dimensional self parameterizing algorithm, Geophysical Journal International, Volume 191, Issue 3, pp. 1135–1151

Cullen, A., Reemst, P., Henstra, G., Gozzard, S., Ray, A., 2010, Rifting of the South China Sea: new perspectives, Petroleum Geoscience, Volume 16, pp. 273-282


Ray, A. & Srivastava, D. C., 2008, Non-linear least squares ellipse fitting using the genetic algorithm with applications to strain analysis, Journal of Structural Geology, Volume 30, Issue 12, pp. 1593-1602


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