Employment history: Observatorio Nacional/CNPq, Rio de Janeiro, RJ, Brazil - 1990-92. Hidroconsult, Sao Paulo, SP, Brazil - 1989. Hidroquimica, Rio de Janeiro, RJ, Brazil - 1988-89.

Academic history: University of South Carolina, Columbia, SC, U.S.A. B.S. in Civil Engineering (Water Resources and Environmental Engineering) - July, 1988.

Observatorio Nacional/CNPq, Rio de Janeiro, RJ, Brazil M.Sc. in Geophysics (Electromagnetic methods) - September, 1992.

University of Utah, Salt Lake City, UT, U.S.A. Ph.D. candidate in Geophysics (Electromagnetic methods) - expected graduation date is September, 1996.

Society affiliations: SEG, AGU, IEEE, ULG, SBGf.

Areas of professional interest: Modelling, inversion and interpretation of electromagnetic data.

Current research (with references):

I am working with Dr. Zhdanov in an approach to 2-D inversion of MT data based on Tikhonov regularization and the incorporation of a priori information. Better description of the work can be found in one of the following abstracts:

Zhdanov, M.S. and de Lugao, P.P., 1995, Fast and stable two-dimensional inversion of magnetotelluric data, IUGG XXI General Assembly, Boulder, CO, July 2-14, Abstracts-Week A, A126.

Zhdanov, M.S., de Lugao, P.P., and Portniaguine, O., 1995, Fast and stable two-dimensional inversion of magnetotelluric data, Fourth International Congress of the Brazilian Geophysical Society and First Latin American Geophysical Conference, Rio de Janeiro, RJ, Brazil, August 20-24, Expanded Abstracts, Volume II, 660-663.

Zhdanov, M.S., de Lugao, P.P., and Portniaguine, O., 1995, Two-dimensional regularized inversion of magnetotelluric data, SEG International Exposition and 65th Annual Meeting, Houston, TX, October 8-13, 1995, Expanded Abstracts with Author's Biographies, 803-806.

With Dr. Wannamaker I am working with application of reciprocity to speed the calculation of the sensitivities when inversion is performed for a large number of parameters. A summary of the work can be found in the following reference:

Wannamaker, P.E. and de Lugao, P.P., 1995, Application of reciprocity to the calculation of the Jacobian matrix in two-dimensional magnetotelluric inversion, IUGG XXI General Assembly, Boulder, CO, July 2-14, Abstracts-Week A, A101.