Ph.D., Iowa State University
M.S., Northern Illinois University
Key Areas of Interest: Glaciology, Quaternary Geology, Geomorphology, Glacial Geology, Geologic Mapping, Engineering Geology
Teaching Areas: Geomorphology, Quaternary Geology, Quaternary Climate Change, Conducted Field Trips in Geomorphology and Quaternary History
Research Interests: My research focuses on glacier erosion, basal till deformation beneath ice sheets, and the Quaternary history of Wisconsin. Current research projects include field stud- ies of fabric development of drumlins in Wisconsin and Iceland, bedrock erosion in Canada and Switzerland, and Quaternary mapping in Wisconsin. Complimentary laboratory studies include using a ring-shear device to examine the particle and magnetic fabrics of sheared basal till.
In addition, I have a burgeoning interest in the initiation of landslides and ground water flow across clay-rich aquitards in east-central Wisconsin as a result of mapping glacial sediments associated with pro-glacial Lake Oshkosh. the formation of drumlins.
Hooyer, T.S., Cohen, D. and Iverson, N.R., 2012, Control of glacial quarrying by bedrock joints, Geomorphology v. 153–154, p. 91-101.
Hooyer, T.S., Iverson, N.R., Lagroix, F., Thomason, J.F., 2008. Magnetic fabric of shear till: A strain indicator for evaluating the bed-deformation model of glacier flow. Journal of Geophysical Research—Earth Surface, v. 113, F02002, 15 p.
Iverson, N.R., Hooyer, T.S., Fischer, U.H., Cohen, D., Moore, P.L., Jackson, M., Lappegard, G., and Kohler, J., 2007. Soft-bed experiments beneath Engabreen, Norway: Regelation infiltration, basal slip, and bed deformation. Journal of Glaciology. v. 182, p. 323–340.
Clark, J.A., Befus, K., Hooyer, T.S., Stewart, P., Shipman, T., Gregory, C., and Zylstra, D., 2008. Numerical simulation of the paleohydrology of glacial Lake Oshkosh, eastern Wisconsin. Quaternary Research, v. 68, pp. 117–129
Iverson, N.R., Hooyer, T.S., Thomason, J.F., Graesch, M. and Shumway, J.R., 2008. The experimental basis for interpreting particle and magnetic fabrics of sheared till. In: Reconstructing ice-sheet dynamics from subglacial sediments and landforms. Eds., Ó Cofaigh, C. and Stokes, C.R., Earth Surface Processes and Landforms.
Cohen, D., Iverson, N.R., Hooyer, T.S., Fischer, U.H., Jackson, M., and Moore, P.L., 2005. Debris-bed friction of hard-bedded glaciers. Journal of Geophysical Research—Earth Surface, v. 110, F02007, 13 p.