UC Davis
Associate Research Scientist

Dr. Yarnell’s research focuses on integrating the traditional fields of hydrology, ecology and geomorphology in the river environment. She is currently conducting research that applies understanding of river ecosystem processes to managed systems in the Sierra Nevada, with a focus on the development and maintenance of riverine habitat. She has work closely with government resource agencies and the private sector to assess the impacts of environmental flows on aquatic biota and provide recommendations for developing flows that improve the functioning of river ecosystems. More recently, her experience has expanded to include evaluation and restoration of headwater systems, particularly montane meadows in the Sierra Nevada and Cascade ranges.

UC Water Connection: 

Sarah Yarnell brings an interdisciplinary approach to river science and water management issues to the UC Water team. She also is co-leading the 2018 UC Water Academy. 


Dr. Yarnell is an Associate Research Scientist at the Center for Watershed Sciences at UC Davis. She received her Bachelors of Science in Environmental Biology and Management, her Masters in Geology, and her PhD in Hydrologic Sciences at UC Davis.