SEMINARS - USA

1991, Mining applications of geotomography, University of Wisconsin-Milwaukee, Department of Geosciences, November 6, 1991 (invited)

1991, In situ mining, Michigan Technological University, Geological and Mining Engineering Departments, Houghton, MI, May 10, 1991 (invited)

1992, Geotomographic applications in mining, Columbia University, Henry Krumb School of Mines, New York, NY (invited)

1992, Analysis and implications of dynamic transmissivity conditions during in situ copper leaching, University of California, Earth Science Division, Berkeley, CA (invited)

1996, Mining Applications of seismic tomography, Radford University, Roanoke, Department of Geological Engineering VA (invited)

2001, Modeling framework for simulating urbanization and its effects on ecological integrity - a work in progress, University of Minnesota, Department of Biosystems and Agricultural Engineering, St. Paul (invited)

2002, Simultaneous estimation of coupled water-heat-solute transport parameters, University of Minnesota, Department of Biosystems and Agricultural Engineering, St. Paul, MN (invited)

2002, Stochastic simulation and optimization of reservoir parameters, University of Minnesota, Department of Biosystems and Agricultural Engineering, St. Paul, MN (invited)

SEMINARS - International

2005, Simultaneous estimation of rainfall amounts in four ungaged coastal watersheds of El Salvador, University Centroamericana, Dept. Energy and Fluids,. San Salvador, El Salvador, January 24, 2005 (invited)

2005, Simulating hurricane-induced costal flooding, El Salvador, University Centroamericana, Dept. Energy and Fluids, San Salvador, El Salvador, January 26, 2005 (invited)

2005, Improved estimation of recharge through the vadose zone, Hohai University, State Key Laboratory of Hydrology, Water Resources and Hydraulic Engineering, , Nanjing, China (invited)

2005, Predicting Effects of Urbanization on Ecological Integrity, Hohai University, State Key Laboratory of Hydrology, Water Resources and Hydraulic Engineering,. Nanjing, China (invited)

2005, Simulated Effects of Sulphur Gulch Reservoir Operations on Colorado River Quantity and Quality, Hohai University, State Key Laboratory of Hydrology, Water Resources and Hydraulic Engineering, , Nanjing, China (invited)

2005, Probable effects of urbanization on biological integrity, Research Institute for Soil Science and Agricultural Chemistry of the Hungarian Academy of Sciences, Budapest, Hungary (invited)

2007, Assessment and Management of Mining-Related Environmental Risks With Applications, University of Kuopio, Kuopio, Finland (invited)

2008, Overview of Hydrogeology in the USGS, Physical Hydrogeology, Instituto de Geociências, Universidade Estadual de Campinas, Campinas, Brazil, August 27, 2008 (invited) http://www.ige.unicamp.br/ (invited)

2008, Numerical modeling strategies in resource assessments – past, present, and future Seminar, Instituto de Geociências, Universidade de Brasilia, Brasilia, Brazil, November, 2008 (invited)