The Alabama Water Institute and CIROH recently hosted the 20th anniversary of HEPEX — a global collaboration to improve hydrologic forecasting and its use in real-world decisions. Rob Hartman, a consulting hydrologist with 35 years of federal flood and water supply forecasting experience, shared insights from his time leading the National Weather Service California–Nevada River Forecast Center, his work on the Forecast Informed Reservoir Operations project, and how agencies are using forecasts to guide reservoir operations and flood management today.

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HEPEX (Hydrologic Ensemble Prediction EXperiment) is a global community of researchers and practitioners in hydrological ensemble prediction. It brings together people contributing and working on specific topics related to hydrological forecasting and hydrometeorological ensemble prediction.

The group recently held its 20th anniversary workshop at The University of Alabama, hosted by the Alabama Water Institute and CIROH. Dr. Ilias Pechlivanidis, co-chair of HEPEX and associate professor and senior researcher in hydrology at the Swedish Meteorological and Hydrological Institute, explains what HEPEX is and why hydrological ensemble prediction is important.

Visit HEPEX: https://hepex.org.au

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Dr. Toby Ault is an assistant professor of earth and atmospheric sciences and the director of graduate studies for atmospheric sciences at Cornell University. Ault joins us for this episode to discuss various climate topics, including megadroughts.

Ault's research coalesces around three areas of inquiry related to emergent climate risks: (1) estimating the risk of prolonged drought under climate change; (2) understanding the dynamics of seasonality, particularly spring; and (3) characterizing variations in the Tropical Pacific on timescales of decades to centuries, and their influence on global climate. His methods entail data synthesis from observational sources as well as numerical and statistical modeling. The nature of his work is therefore highly interdisciplinary, affording him the opportunity to collaborate closely not only with climate scientists and modelers, but with colleagues in many other disciplines, including geography, paleoclimatology, and ecology.

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Website: http://awi.ua.edu