Map showing drought conditions in the western United States in 2020

Does Less Pollution Mean Less Precipitation?

IIHR researchers Wei Zhang and Gabriele Villarini (IIHR director) have published research linking urban sprawl to an increase in rainfall and flooding during Hurricane Harvey.
Oars in the water
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Row with the Flow: IIHR Flume Supports Hawkeyes

Ten years ago, Iowa athletics opened the new boathouse, home to the Iowa rowing team and a brand new rowing tank designed by IIHR. The tank keeps the rowers in shape and injury-free as they train during the off-season.
Navid Jadidoleslam stands in front of the Iowa River
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IIHR Grad Student Publishes Two Journal Papers

IIHR graduate student Navid Jadidoleslam is the first author on two papers published recently in the prestigious Journal of Hydrology.
Four men stand in front of a dam
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IIHR Gives a Dam About Fish Passage

They may not know it, but millions of salmon in the Pacific Northwest have safely passed through major hydroelectric dams thanks in part to the problem-solving and modeling expertise of the engineers at IIHR—Hydroscience & Engineering