91´«Ã½

Specialty

ÌýLimnology; biogeochemistry of lakes and streams

Research Interests

Research focuses on interactions between hydrologic, chemical and biological processes in controlling the dynamics in aquatic ecosystems. This research is carried out through field-scale experiments, modeling, and laboratory characterization of natural substrates. Conducts research focusing on interactions between freshwater biota, trace metals, and natural organic material in diverse freshwater environments, including lakes and streams in the Colorado Rocky Mountains and in the McMurdo Dry Valleys in Antarctica.

Main field sites are located in the Rocky Mountains and in the Transantarctic Mountains, and include pristine and stressed ecosystems. A co-principal investigator in the McMurdo Dry Valley LTER and in the Niwot Ridge LTER.Ìý

Develops interactions with state and local groups involved in mine drainage and watershed issues in the Rocky Mountains.

Honors and Distinctions:

• John Dalton Medal, European Geophysical Union
• American Geophysical Union, Hydrology Career Award
• Distinguished Research Lectureship, CU-Boulder
• US Geological Survey: Meritorious Service Award
• American Geophysical Union: Fellow
• National Academy of Engineering: Member
• American Association for the Advancement of Science: Fellow
• Humic Sciences and Technology Conference XI: Honorary Chair
• American Geophysical Union: Langbein Lecturer
• John Dalton Medal, European Geophysical Union
• Hydrology Career Award, American Geophysical Union
• Distinguished Professor, University of Colorado-Boulder
• Robert Horton Medal, American Geophysical Union
• Society of Freshwater Science
• International Humic Substances Society