Managing The Columbia River
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Author | : National Research Council |
Publisher | : National Academies Press |
Total Pages | : 261 |
Release | : 2004-08-27 |
Genre | : Technology & Engineering |
ISBN | : 0309091551 |
Flows of the Columbia River, although modified substantially during the twentieth century, still vary considerably between seasons and between years. Lowest flows tend to occur during summer months when demand for irrigation water is at its highest and when water temperatures are greatest. These periods of low flows, high demand, and high temperature are critical periods for juvenile salmon migrating downstream through the Columbia River hydropower system. Although impacts on salmon of any individual water withdrawal may be small, the cumulative effects of numerous withdrawals will affect Columbia River flows and would pose increased risks to salmon survival. The body of scientific knowledge explaining salmon migratory behavior and physiology is substantial, but imperfect, and decision makers should acknowledge this and be willing to take action in the face of uncertainties. In order to provide a more comprehensive water permitting process, the State of Washington, Canada, other basin states, and tribal groups should establish a basin-wide forum to consider future water withdrawal application permits. If the State of Washington issues additional permits for water withdrawals from the Columbia River, those permits should contain provisions that allow withdrawals to be curtailed during critical high-demand periods.
Author | : Columbia River Water Management Group |
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Total Pages | : |
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Total Pages | : |
Release | : 2008 |
Genre | : Columbia River Watershed |
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Author | : Columbia River Basin Water Management Program (Wash.) |
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Total Pages | : 0 |
Release | : 2007 |
Genre | : Grants-in-aid |
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Author | : United States. Public Health Service |
Publisher | : |
Total Pages | : 40 |
Release | : 1961 |
Genre | : Columbia River |
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Author | : Columbia River Fisheries Council |
Publisher | : |
Total Pages | : 80 |
Release | : 1981 |
Genre | : Fishery management |
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Author | : United States. Bonneville Power Administration |
Publisher | : |
Total Pages | : 4 |
Release | : 2010 |
Genre | : Columbia River Watershed |
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Author | : United States. Forest Service |
Publisher | : |
Total Pages | : 476 |
Release | : 1992 |
Genre | : Columbia River Gorge National Scenic Area (Or. and Wash.) |
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Author | : Washington (State). Governor's Select Committee on the Columbia River Gorge |
Publisher | : |
Total Pages | : 22 |
Release | : 1981 |
Genre | : Land use |
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Author | : National Research Council |
Publisher | : National Academies Press |
Total Pages | : 222 |
Release | : 2007-06-30 |
Genre | : Science |
ISBN | : 0309105242 |
Recent studies of past climate and streamflow conditions have broadened understanding of long-term water availability in the Colorado River, revealing many periods when streamflow was lower than at any time in the past 100 years of recorded flows. That information, along with two important trends-a rapid increase in urban populations in the West and significant climate warming in the region-will require that water managers prepare for possible reductions in water supplies that cannot be fully averted through traditional means. Colorado River Basin Water Management assesses existing scientific information, including temperature and streamflow records, tree-ring based reconstructions, and climate model projections, and how it relates to Colorado River water supplies and demands, water management, and drought preparedness. The book concludes that successful adjustments to new conditions will entail strong and sustained cooperation among the seven Colorado River basin states and recommends conducting a comprehensive basinwide study of urban water practices that can be used to help improve planning for future droughts and water shortages.