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- H13Q-1326: Using FIRO to Understand Reservoir Operational Resilience Under Variable Hydrometeorological Conditions at Howard A. Hanson Dam in Washington State
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Board 1326‚ Hall EFG (Poster Hall)NOLA CC
Author(s):Generic 'disconnected' Message
Michael Warner, US Army Corps of Engineers, Seattle District (First Author, Presenting Author)
Julie Kalansky, Center for Western Weather and Water Extremes (CW3E), Scripps Institution of Oceanography, University of California San Diego
Daniel Cayan, University of California San Diego
Jane Harrell, US Army Corps of Engineers, Seattle District
Peter Yao, Scripps Institution of Oceanography
Lu Su, University of California San Diego
Ming Pan, Center for Western Weather and Water Extremes (CW3E), Scripps Institution of Oceanography, University of California San Diego
Christopher Castellano, Center for Western Weather and Water Extremes (CW3E), Scripps Institution of Oceanography, University of California San Diego
Rosa Luna Niño, Scripps Institution of Oceanography, University of California San Diego
Marty Ralph, Scripps Institution of Oceanography, University of California San Diego
Cary Talbot, US Army Corps of Engineers, Engineer Research and Development Center
Howard A. Hanson Dam on the Green River in Washington provides both flood protection and water for the city of Tacoma, but its operations rely on winter snowpack and spring rains to refill the reservoir each year. Shifts in snowpack, runoff timing, and extreme rainfall can create challenges for balancing flood safety, water supply, and fish habitat. Our study uses hydrology and weather models to explore how changes in snow, rainfall, and atmospheric river storms could affect the dam’s ability to manage floods and refill the reservoir. By linking these projections to operational needs, we identify potential risks and ways to adapt, helping the U.S. Army Corps of Engineers plan for resilient water management.
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