By National Research Council, Division on Earth and Life Studies, Water Science and Technology Board, Committee on River Science at the U.S. Geological Survey
Rivers supply approximately 60 percentage of the nation’s consuming water and irrigation water and 10 percentage of the nation’s electrical energy wishes. The a number of and occasionally incompatible companies demanded of rivers usually bring about coverage and administration conflicts that require the combination of science-based details. This document advises the U.S. Geological Survey on the way it can most sensible tackle river technological know-how demanding situations via successfully utilizing its assets and coordinating its actions with different organizations. The file identifies the top precedence river technological know-how matters for the USGS, together with environmental flows and river recovery, sediment delivery and geomorphology, and groundwater surface-water interactions. It additionally recommends cross-cutting technology actions together with surveying and mapping the nation’s river platforms in line with key actual and panorama good points, and increasing paintings on predictive types, specially those who simulate interactions among physical-biological techniques. The document identifies key variables to be monitored and data-managed. It proposes improvements in streamflow, organic, and sediment tracking; those comprise setting up multidisciplinary, built-in reach-scale tracking websites and constructing a accomplished nationwide sediment tracking application. eventually, it encourages the USGS to be on the vanguard of recent know-how software, together with airborne lidar and embedded, networked, instant sensors.
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Extra info for River Science at the U.S. Geological Survey
Today, the environmental impact assessments of proposed infrastructure projects are integral to the public debate surrounding new development. C. ) as a response to river contamination. html). C. C. ). Despite the many federal initiatives designed to protect rivers, gaps in our Copyright © National Academy of Sciences. All rights reserved. S. S. GEOLOGICAL SURVEY scientific understanding of river processes often limit our ability to manage rivers effectively. , 2003). Furthermore, human impacts on the landscape have reached unprecedented levels, and now rival the forces of nature in their effects on rivers.
Even at dams that are no longer in use, the overall costs and benefits and impacts of removal must be developed. The science to support these analyses is in its infancy and limited by the small number of case studies (see Boxes 2-2 and 2-3) where dam removal has been followed by adequate monitoring. Among scientific and many practitioner communities, there is a strong consensus that this restoration should be by adaptive iteration—try an approach, monitor to see how it works, and then adjust if necessary.
Html). The initiative includes eight project elements, each targeting specific concerns or questions regarding the hydrology and/or ecology of the Platte River system. Collectively this work will improve the understanding of linkages between hydrology, geomorphology, biological communities, and ecosystem processes, which can then be used to develop strategies to sustain or rehabilitate the riparian ecosystem of the central Platte River. However, the loss of the benefits associated with a dam together with the costs of removal must be balanced against the benefits created by the removal.