My research focuses on characterizing soil moisture regimes in burned and unburned forests and quantifying their sensitivity to post-fire drought based on hydrological modeling. Previously, my research projects were to evaluate climate change impacts on drought and food security in many watersheds in the world based on soil moisture estimation from some hydrological models. I have studied various hydrologic model applications, remote sensing products, climate change impacts on hydrologic extreme, and drought assessment throughout my academic career.
My research intersects hydrological concepts and spatiotemporal modeling approaches to improve understanding of watershed processes and ecosystem health. Currently, I have been working on understanding the effectiveness of riparian practices on stream ecosystems. Specifically, I am investigating how different forest management practices associated with riparian areas influence water quantity, quality, and stream metabolism in headwater streams in Northern California. Throughout my academic career, I have investigated spatial patterns associated with water quality variables, explored environmental concerns linked to excess nutrients from highly agricultural regions, and developed Deep Learning approaches able to map agricultural sources of pollution in the United States. My skills involve hydrological modeling, spatial-temporal analysis, machine learning, remote sensing, and GIS. My goal is to use my research outcomes to guide environmental policymakers and modelers to implement solutions that result in optimal sustainable outcomes.
In collaboration with Catalina Segura (OSU)
My research explores the ecology of freshwater systems with a focus on the processes that link aquatic ecosystems, forests, and watersheds. I use this research to better understand how terrestrial disturbances that change forest conditions can influence aquatic ecosystems. My previous research projects have evaluated the spread of invasive species in riparian forests on salmonid food webs in Alaska and the effects of riparian forest restoration on stream ecosystems in the redwoods of northern California. My current research models the effects of wildfire and shifting fire regimes on aquatic ecosystems in the Pacific Northwest. All my work is designed to directly inform natural resource management. Through my research I have worked with a wide range of managers including municipal, state, and federal agencies, national parks, and private timber companies.
Katherine's research investigates the influences of post-fire restoration practices on soil and hydraulic functions. She recently earned her M.S. at Oregon State, where she researched post-fire soil carbon and erosion. Her PhD research will focus on understanding how different post-fire management strategies influence soil water availability, organic matter content and character, and vegetation reestablishment.
Katie's research is focused on measuring and modeling the effects of wildfire on streamflow and water quality (e.g., DOM, turbidity) in the North Santiam and McKenzie River Basins, which were both impacted by the 2020 Labor Day Fires in Oregon. Her research will provide important insights into the downstream impacts of fire on water supply.
I received my B.S. from Texas Tech University in 2021. While there, I conducted a research project examining predator-prey relationships between non-native Brown trout and several native fish species in the Jemez River Basin in the Santa Fe National Forest, NM. My research at OSU is focused on assessing the effects of the 2020 Archie Creek Wildfire on water qualiyt, fish habitat, and native fish populations in Hinkle Creek near Roseburg, OR. In addition, we have historical data from our study watersheds that will enable us to compare the effects from wildfire to forest harvesting. You can read more about the original Hinkle Creek Paired Watershed study here.
Co-supervised by Dana Warren (OSU)
My research is focused on quantifying the effects of wildfire on hillslope erosion, nutrient transport, and water quality in the Hinkle Creek Paired Watershed Study, located northeast of Roseberg, Oregon. The even-aged Douglas-fir dominated forest is privately owned by Roseberg Forest Products and representative of a significant portion of northwest Oregon's productive forests. The Hinkle Creek Paired Watershed Study was established in 2001 and continued until 2009 to investigate the effects of current forest harvesting practices on a range of forest and aquatic values. However, we have re-established the research sites after the 2020 Archie Creek Fire, which burned more than 131,542 acres. Thus, the study locatoin provides a unique opportunity to understand and compare the watershed effects of wildfire, current forest management practices, and post-fire land management (e.g., salvage logging). The study is unique given the pre- and post-logging research that occurred in the study catchments in the early-to-mid 2000's and provides us with rich and plentiful opportunities for spatial and temporal analysis of topics like streamflow, stream temperature, turbidity, suspended sediment, soil and stream chemistry, and fish health. You can read more about the original Hinkle Creek Paired Watershed study here.
Co-supervised by Thomas H. DeLuca (OSU)
Jonah received his B.S in Forest Engineering from Oregon State University in 2020. Prior to starting his M.S., Jonah worked as both a Forest Engineering Intern at the OSU College Forests and as a Research Technician. In pursuing his M.S., he will be investigating stream flow responses to various riparian harvesting practices in headwater streams in the Coast Range of Northern California. This research is a joint effort between OSU and the California Department of Forestry and Fire Protection (CAL FIRE).
Co-supervised by Catalina Segura (OSU)
Alessandra is an important member of our lab group, assisting faculty and graduate students with research, while gaining field and laboratory knowledge in forest hydrology.
Bailey is an important member of our lab group, assisting faculty and graduate students with research, while gaining field and laboratory knowledge in forest hydrology.
India is an important member of our lab group, assisting faculty and graduate students with research, while gaining field and laboratory knowledge in forest hydrology.
Cedric is an important member of our lab group, assisting faculty and graduate students with research, while gaining field and laboratory knowledge in forest hydrology.
I'm always interested in hearing from highly motivated, enthusiastic students who are quantitatively minded, field oriented, and able to develop and conduct independent scientific research. Please send me an e-mail if you're interested in joining our group.
Dr. Sharon Bywater-Reyes (Post-doc 2015-2017): Assistant Professor, University of Northern Colorado, Greeley, CO
Dr. Nicholas A. Cook (Post-doc 2015-2016): Consultant, Otak Engineering, Portland, OR
Ryan P. Cole (M.S. 2018-2020): US Forest Service
Dr. Ryan A. Hill (Faculty Research Associate 2019): Watershed Ecologist, United States Environmental Protection Agency, Corvallis, OR
Dr. Karla Jarecke (Ph.D. 2015-2021): Post-doctoral scholar, Oregon State University, Corvallis, OR
Noah Kanzig (Hydrometric Technician, B.S. 2016-2018): US Forest Service, Wallowa-Whitman National Forest, OR
Cameron Minson (Hydrometric Data Analyst, B.S. 2016-2017): Centro Experimental Forestal (CEFOR), Valdivia, Chile
Adam Pate (M.S. 2017-2019): USDA NRCS Snow Survey Team, Boulder, CO
Kira Puntenney (M.S. 2014-2017): Stream Tracker Project Manager, Colorado State University, Fort Collins, CO
Aaron Rachels (M.S. 2016-2018): Engineering Geologist, California Central Valley Regional Water Quality Control Board, Sacramento, CA
Danica Ruud (Undergraduate Honors 2018-2019): Geotechnical Engineer, Landslide Technology, Portland, OR
Jerry Risk (Hydrometric Technician, B.S. 2017-2018): Roseburg Forest Products, Roseburg, OR
Dr. Marcia Snyder (Faculty Research Associate 2020): US Forest Service Pacific Northwest Research Station, Corvallis, OR
Casey Steadman (M.S. 2015-2017): Corban University, Salem, OR
Austin Wissler (M.S. 2018-2020): Stream Restoration Specialist, Portland Bureau of Environmental Services, Portland, OR