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\title{Dam reoperation to mitigate changing climate extremes in the Omo River valley}



\author[1]{Julianne D Quinn}%
\author[2]{Sarah M Jordan}%
\author[3]{Marta Zaniolo}%
\author[4]{Matteo Giuliani}%
\author[5]{Andrea Castelletti}%
\affil[1]{Depts. of Civil and Environmental Engineering and Systems and Information Engineering, Univ. of Virginia}%
\affil[2]{Environmental Engineer}%
\affil[3]{Assistant Professor, Dept. of Civil and Environmental Engineering, Duke University}%
\affil[4]{Dept. of Electronics, Information, and Bioengineering, Politecnico di Milano}%
\affil[5]{Professor, Dept. of Electronics, Information, and Bioengineering, Politecnico di Milano}%


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  \date{April 28, 2026}


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\begin{abstract}
Climate change is projected to increase the intensity and frequency of extremes in river basins around the world. Water infrastructure such as reservoirs are often used to buffer against these extremes, enabling more reliable water supply for human uses like irrigation. Yet this can have negative impacts on the system's ecological flows. In designing water infrastructure for human adaptation to climate change, it is important to consider whether the infrastructure is mitigating or exacerbating climate change impacts on ecological systems. Prior work has found that dams mitigate long-duration extremes but exacerbate short-duration extremes. In this study, we investigate whether reservoir operations can be designed to also yield beneficial climate adaptation outcomes for short-duration high and low flow extremes while still improving average socioeconomic and ecological objectives compared to uncontrolled conditions. We explore this research question%
\end{abstract}%



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