Our group uses a combination of reactive transport modeling, big data, and fieldwork to understand how stream chemistry and flow dynamics reflect hydro-biogeochemical processes, climate impacts, and other disturbances. Students will have opportunities to participate in interdisciplinary collaborations and pursue research questions related to watershed hydrology and biogeochemistry. Research topics of interest include but are not limited to: water quality response to extreme events (storms, droughts, wildfires) and climate change, influence of watershed-specific attributes on stream chemistry dynamics and biogeochemical cycling, and continental-scale patterns in water quality dynamics across different landscapes.
If you are interested in joining the group, please fill out following form: https://forms.gle/J1NA8HfN4arRdQyH6.
You will need to upload a CV/resume and unofficial academic transcripts. For full consideration, please submit the form by December 5, 2025.
I have been extremely fortunate to work with thoughtful, generous, and brilliant collaborators on a variety of research projects over the years. I am beyond grateful for the opportunities made available to me through their leadership and guidance. My research and academic journey would not have been possible without the mentorship and support of Drs. Li Li (Penn State), Julia Perdrial (University of Vermont), Jamie Shanley (USGS), Ruby Fu (Caltech), and Woody Fischer (Caltech), among many others.
I am always open to working with new collaborators and deeply value interdisciplinary work! If you are interested in working together, please reach out to me by email (brynstewart 'at' arizona.edu).