Mark Strudley, PhD., Hydrology/Geology/Geomorphology
Dr. Strudley specializes in hydrology and sediment transport, with an emphasis on a combination of field work and numerical geomorphic and hydrologic model design, analysis, testing, and calibration. His experience includes significant work in floodplain mapping and restoration, arid lands hydrology and geomorphology, hydrogeologic assessment, plus water-quality measurements. Previously, he worked with the USDA Agricultural Research Service on soil hydraulics, real-time soil moisture monitoring, automated model calibration, and sediment transport.

• PhD., Earth and Ocean Sciences, Specialization in Geomorphology/Hydrology, Duke University, 2006
• B.Sc., Geology (summa cum laude), Specialization in Geomorphology and Geochemistry, University of California, Davis, 2001




  • David, O., Leavesley, G., Umemoto, M., Strudley, M.W., Green, T.R., Erskine, R.H. & Hay, L., 2008, Automated, multi-objective, step-wise calibration, I - Enabling modeling frameworks for automated model calibration: Environmental Modelling and Software (in preparation).


  • Strudley, M.W., Green, T.R., Erskine, R.H., David, O. & Leavesley, G., 2008, Automated, multi-objective, step-wise calibration, II - Assessing modeled spatial and temporal variability of soil moisture: Environmental Modelling and Software (in preparation).


  • Ascough II, J.C., Maier, H.R., Ravalico, J.K. & Strudley, M.W., 2008, Future research challenges for incorporating uncertainty in environmental and ecological decision-making: Ecological Modelling (in press).


  • Strudley, M.W., Green, T.R. & Ascough II, J.C., 2008, Temporal and spatial variability of tillage effects on soil physical properties - The state of the science: Soil and Tillage Research (accepted pending revisions).


  • Strudley, M.W. & Murray, A.B., 2007, Sensitivity analysis of pediment development through numerical simulation and selected geospatial query: Geomorphology 88(3-4), p.329-351.


  • Strudley, M.W., Murray, A.B. & Haff, P.K., 2006, Regolith-thickness instability and the formation of tors in arid, granitic environments: Journal of Geophysical Research-Earth Surface 111(F3), doi:10.1029/2005JF000405.


  • Strudley, M.W., Murray, A.B. & Haff, P.K., 2006, The emergence of pediments, tors, and piedmonts junctions from a bedrock weathering-regolith thickness feedback: Geology 34(10), p.805-808.


  • Strudley, M.W., 2006, The emergence of pediments, tors, and piedmont junctions from a bedrock weathering-regolith thickness feedback: Ph.D. Dissertation, Duke University.


  • Haff, P.K., Glass, L., & Strudley, M.W., 2003, Desert pavement studies: Army Research Office Report #A222924.


  • Strudley, M.W., Mount, J.F., Florsheim, J. & Brown, K., 2001, Formation and evolution of blocked tributary valley lakes on the lower Cosumnes River floodplain, Sacramento County, CA: Undergraduate Senior Honors Thesis.


  • Strudley, M.W., 1999, Anthropogenic influences to the Cosumnes River channel: The Cosumnes Consortium, Center for Integrated Watershed Science and Management, John Muir Institute for the Environment, U.C. Davis.


  • Strudley, M.W., 2005, United States Geological Survey, Tucson, AZ: A dynamic origin of pediments, piedmont junctions, and tors (invited oral presentation).