Peter A. Troch

Peter A. Troch is Professor and Head of the Department of Hydrology and Atmospheric Sciences at the University of Arizona, holding the Agnese Nelms Haury Endowed Chair in Environment. He serves as Science Director of Biosphere 2.

Research focuses on catchment hydrology, hillslope processes, and landscape evolution. Primary investigations develop experimental and modeling approaches to understand water partitioning, biogeochemical cycling, and landscape development. Current projects examine isotope tracers in hillslope systems, soil microbial dynamics, and weathering processes in model landscapes.

Leadership roles include directing the Landscape Evolution Observatory at Biosphere 2, a large-scale experimental facility for studying ecohydrological processes. Research integrates field observations, controlled experiments, and numerical modeling across scales.

Recent publications advance understanding of hydrologic transport processes, soil microbial responses to landscape changes, and carbon sequestration through weathering. Work consistently bridges hydrological theory with landscape evolution dynamics.