Picture of Dr. Glenn Tootle


Center for Complex Hydrosystems Research, Civil, Construction and Environmental Engineering, Alabama Water Institute, Center for Sedimentary Basin Studies

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  • Ph.D., Engineering (Civil), University of Nevada, Las Vegas, 2005
  • M.S., Civil Engineering, University of Florida, 1987
  • B.S., Civil Engineering, University of Florida, 1985


Dr. Glenn Tootle’s research efforts focus on climate and climate change impacts on water resources, including paleo (using tree rings) reconstructions of hydrologic variables, long lead-time forecasting of streamflow, drought frequency, weather modification impacts on streamflow, and glacier impacts on streamflow.

As both lead and co-principal investigator, he has multiple awards from the National Science Foundation’s Paleo Perspectives for Climate Change program (NSF P2C2), the National Science Foundation’s Innovations at the Nexus of Food, Energy and Water Systems (NSF INFEWS) program, the National Science Foundation’s Research Traineeship Program (NRT), the National Oceanic and Atmospheric Administration’s sponsored Mississippi-Alabama Sea Grant Consortium and the Environmental Protection Agency’s Gulf of Mexico Program.

He regularly publishes articles pertaining to his research and has chaired both doctorate and master’s students. He served as an associate editor for the ASCE Journal of Hydrologic Engineering and consulted as a registered professional engineer in Florida and Nevada in the 1990s. He teaches courses in water resources, including an abroad course primarily based in Trento, Italy.

He retired as a Captain from the U.S. Navy Civil Engineer Corps (Navy Seabees) after ~25 years, which included two post 9/11 mobilizations and service as commanding officer for Naval Mobile Construction Battalion TWO-FIVE.

Honors and Awards

  • Fulbright Scholar Award, Fulbright Scholar Program, 2020

In 2021, he served as a Fulbright Research and Teaching Scholar to the University of Trento (Italy). While in Trento, he developed two new UA courses (CE 270: Field Studies in Water and Climate and CE 574: Paleohydrology) which will be offered during the UA Faculty Led abroad program he leads each summer to Italy.

Latest Publications

  • Tootle, G.; Oubeidillah, A.; Elliott, E.; Formetta, G.; Bezak, N. Streamflow Reconstructions Using Tree-Ring-Based Paleo Proxies for the Sava River Basin (Slovenia). Hydrology 2023, 10, 138. https://doi.org/10.3390/hydrology10070138
  • Fang, B.; Kam, J.; Elliott, E.; Tootle, G.; Therrell, M.; Lakshmi, V. The Recent Decline of Apalachicola– Chattahoochee–Flint (ACF) River Basin Streamflow. Hydrology 2022, 9, 140. https://doi.org/10.3390/hydrology9080140
  • Formetta, G.; Tootle, G.; Therrell, M. Regional Reconstruction of Po River Basin (Italy) Streamflow. Hydrology 2022, 9, 163. https://doi.org/10.3390/hydrology9100163
  • Formetta, G.; Tootle, G.; Bertoldi, G. Streamflow Reconstructions Using Tree-Ring Based Paleo Proxies for the Upper Adige River Basin (Italy). Hydrology 2022, 9, 8. https://doi.org/10.3390/hydrology9010008
  • Formetta, G.; Kam, J.; Sadeghi, S.; Tootle, G.; Piechota, T. Atlantic Ocean Variability and European Alps Winter Precipitation. Water 2021, 13, 3377. https://doi.org/10.3390/w13233377