GOVERNMENT

U.S. Geological Survey, Lakewood, CO

  Research Geophysicist/Hydrologist, Crustal Imaging and  
  Characterization Team, Geologic Discipline, January 2005 - present

  Research Hydrologist, Senior Staff, Colorado Water Science Center, 
  Water Resource Discipline, June 2001 – December 2004

U.S.Geological Survey, Champaign, IL

  Supervisory Hydrologist, National Water Quality  Assessment 
  Program, Water Resource Discipline, January 1997 – June 2001

U.S.Bureau of Mines, Minneapolis, MN

  Research Hydrologist/Geophysicist, June 1986 – May 1996

UNIVERSITY

Universidade de Brasilia, Graduate Program, Brasilia, Brazil

  Visiting Professor, Laboratory of Applied geophysics, fall, 2008

  Visiting Professor, Environmental Science, 2007

Universidad Centroamericana, Programa de Postgrado Hidrología, San Salvador, El Salvador

  Visiting Professor, Energy and Fluids, 2003, 2004,2005,2006,2007 

  Visiting Professor, Water Resources and Hydraulic Engineering, Fall  
  2005.

University of Colorado, Denver, CO

  Adujunct Professor, Geography and Environmental Sciences, 2004-

  present. 

Colorado Schoolof Mines, Golden, CO

  Adjunct Professor, Geophysics Department, 2006 - present

Colorado College, Colorado Springs, CO

  Visiting Professor, Geology Department, 2003

University of Minnesota, U.S. Army High Performance Computing Center, Minneapolis, MN

  Researcher – unsaturated zone modeling group, 1995-1996

University of Wisconsin, Geosciences, Milwaukee, WI

  Geophysical consultant, May 1985 – August 1986

University of Wisconsin, Geosciences, Milwaukee, WI

  Research Assistant, September 1984 – August 1985