Technical supplement detailing modeled climate, hydrology, agriculture, and energy impacts on Columbia River Basin water supply and demand.
This Technical Supplement supports Washington’s 2021 Columbia River Basin Long-Term Water Supply and Demand Forecast by documenting the methods, models, and analyses used to project future water conditions through 2040 and beyond. Led by the Office of Columbia River at the Washington State Department of Ecology, the work integrates hydrologic, crop production, reservoir operations, and economic modeling to evaluate climate-driven changes in surface and groundwater supplies alongside agricultural, residential, ecological, and hydropower demands.
The report expands on six focused modules, including residential demand forecasting, double cropping impacts, water rights curtailment, low-flow estimation, hydropower demand, and groundwater trends. Results are presented across multiple geographic scales, from the full Columbia River Basin to Washington’s watersheds and aquifers. The supplement also documents outreach efforts and responses to public comments. Together, these analyses provide planners, policymakers, and water managers with detailed technical foundations to support long-term water resource decisions in a changing climate.
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Authors
Adam, J., Yourek, M., Scarpare, F., Liu, M., McLarty, S., Asante-Sasu, C., McClure, S., Turk, J., Haller, D., Padowski, J., Deshar, R., Brady, M., Rajagopalan, K., Barber, M., Weber, R., Hall, S. A., Yorgey, G., Whittemore, A., Goodspeed, H., Gustine, R., Kondal, A., Yoder, J., Kruger, C., Deaver, B., Downes, M., Tarbutton, S., Callahan, M., Price, P., Roberts, T., Stephens, J., Valdez, W., and Stockle, C.
Related Products
- 2021 Columbia River Basin Long-Term Water Supply and Demand Forecast
- About the 2021 Columbia River Basin Long-Term Water Supply and Demand Forecast
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- Concurrently Assessing Water Supply and Demand Is Critical for Evaluating Vulnerabilities to Climate Change
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Suggested Citation
Adam, J., Yourek, M., Scarpare, F., Liu, M., McLarty, S., Asante-Sasu, C., McClure, S., Turk, J., Haller, D., Padowski, J., Deshar, R., Brady, M., Rajagopalan, K., Barber, M., Weber, R., Hall, S., Yorgey, G., Whittemore, A., Goodspeed, H., Stockle, C., Gustine, R., Kondal, A., Yoder, J., Kruger, C., Deaver, B., Downes, M., Tarbutton, S., Callahan, M., Price, P., Roberts, T., Stephens, J., & Valdez, W. (2022). Technical supplement to the 2021 Columbia River Basin long-term water supply and demand forecast (Publication No. 22-12-001). Washington State Department of Ecology.
Year Published
2022
Areas of Focus
Agricultural Practices, Climate & Environment, and Water Resources & Policy
Topics
Climate Change, Crops, Energy, Natural Resources, Production Systems, and Soils & Fertility
