Timothy C. Bartholomaus

Dr. Timothy C. Bartholomaus serves as Associate Professor in the Department of Earth and Spatial Sciences within the College of Science at the University of Idaho. Leading the Glacier Dynamics Group in Moscow, ID, his research integrates seismology and geophysics to investigate glacier dynamics, ice-ocean interactions, and sea level rise projections. His work spans field sites in Alaska, Greenland, Antarctica, and Svalbard with emphasis on subglacial hydrology, iceberg calving mechanisms, and rapid ice loss processes.

His educational background includes:

• PhD in Geophysics (2013), University of Alaska Fairbanks
• MS in Geological Sciences (2007), University of Colorado Boulder
• AB in Earth Sciences (2002), Dartmouth College

Bartholomaus' research focuses on the fundamental processes driving glacier acceleration and mass loss. His group employs seismic monitoring to map subglacial water systems, revealing how conduit branching and pressure gradients control ice flow. Seminal work demonstrated that changes in subglacial water storage—not total throughput—govern glacier velocity, overturning prior assumptions. Current projects examine glacier surges through enthalpy-based modeling, ice mélange impacts on fjord stratification, and calving style differentiation using terminus change time series.

Analysis of his recent publications reveals strong emphasis on interdisciplinary approaches combining seismology, hydrology, and remote sensing. Key trends include seismic mapping of subglacial hydrology during surge cycles, quantification of submarine melt effects on calving, and development of applied ice sheet modeling frameworks for policy relevance. His work increasingly addresses societal implications through sea level rise projections and community engagement initiatives.

As principal investigator, Bartholomaus has secured funding from the National Science Foundation and the University of Alaska Fairbanks Center for Global Change. His Glacier Dynamics Group mentors graduate students through field campaigns in Alaska and Greenland, with recent graduates including Dr. Chris Miele (PhD dissertation: 'Shearing shelves, mathematical modeling, and fracture factories'). The group actively participates in major workshops including the Future of Greenland Ice Sheet Science (FOGSS) and Northwest Glaciologists meetings.

The Glacier Dynamics Group operates through collaborative networks including the International Glaciological Society and multi-institutional projects like the 2023 FOGSS workshop hosted at UI. Field operations span the St. Elias Range, Greenland fjords, and Antarctic ice shelves, utilizing seismic arrays, GPS monitoring, and oceanographic sensors to capture ice-ocean interactions at process scales.