Michael J. Friedel, Ph.D.
Senior Scientist, Visiting and Adjunct Professor

email: mfriedel@usgs.gov; telephone: 303.236.7790

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Oveview: I have 22 years of domestic and international experience leading and participating on teams that characterize, monitor, and model the ecological, geophysical, and water-resource response to natural and anthropogenic stresses. Because of limited information and nonuniqueness in these systems, I personally develop and apply methods to better conceptualize, parameterize, and calibrate models. I also investigate and quantify the associated model and prediction uncertainty in analytical and numerical models. In addition to collaborative problem solving, I enjoy writing technical articles, teaching university courses, providing workshops, and mentoring students.    Curriculum Vitae

Work experience: U.S. Geological Survey, U.S. Bureau of Mines, various universities, and international organizations.

Research experience: development and application of numerical models; improved estimation (or calibration), regularization, and validation approaches; and techniques to quantify model and predictive uncertainty.

Teaching experience: Colorado college, Hohai University, State University of Campinas, University of Brasilia, University of Centroamericana, University of Colorado, University of Kuopio; and various workshops 

International experience: Argentina, Brazil, China, El Salvador, Finland, Guatemala, Haiti, Hungary, Israel, Jordan, Mauritania, Palestine, Romania, Turkey, European Union, Middle East Peace Process, NATO security

Recognized expertise:

  • Flow and transport methods and modeling (heat, solute,   reactive; surface water, ground water, unsaturated zone)
  • Flood methods and modeling (water, sediment, debris; confined, unconfined, ungaged)
  • Geophysical methods and modeling
  • Hazard and risk evaluation
  • Inverse methods (fitting, calibration, uncertainty)
  • Model development (analytical, numerical, stochastic)
  • Teaching (seminars, workshops, courses)
  • Team management (interdisciplinary, international)
  • Uncertainty analysis (model and prediction)
  • Water resource quantity and quality
  • Studies - geotechnical, geostatistics, geophysics, hydrology, hydrogeology, unsaturated zone
 Current research/studies:
  • Estimating probable amounts of metals in undiscovered deposits
  • Estimating uncertainty in multicomponent reactive transport
  • Estimating uncertainty in predictive debris flow equations
  • Evaluating calibration and prediction methodologies for dual permeable flow and transport in variably saturated media
  • Efficacy of reactive barriers to mitigation mine tailings drainage
  • Hypothesis testing for borehole leakage by inverse methods
  • Inversion of Airborne EM to identify water bearing regions
  • Inverse EM applications for identifying unexploded ordinance
  • Joint inversion of geophysical and groundwater data and models
  • Redistribution of sediment following flooding in Romania
  • Writing 3 chapters for 2nd edition of Unsaturated Zone Hydrology for Scientists and Engineers
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