Geomorphology and hydrology.
Present-day erosional and hydrologic processes in mountain environments and in mass wasting and slope development. This includes studies of snow hydrology, streamflow generation, and sediment transport. It incorporates work on periglacial processes, mountain permafrost, and hillslope processes. Over the past 20 years, this has involved continuing work in the mountains of Colorado that is now incorporated into the Long-Term Ecological Research Program. It has also included work in the mountains of Tasmania, in central Europe, Nepal, and the Oregon Cascades.
- G. K. Gilbert Award, AAG, 1994
- Frost Lecturer, BGRG, 1993
- Fellow, AAAS, 1989