Major Sedimentation Issues for the USGSby Harvey E. Jobson, U.S. Geological Survey Natl Cent, Reston, United States,
Edmund D. Andrews, U.S. Geological Survey Natl Cent, Reston, United States,
Abstract: Historically, sediment information has been used primarily in planning for engineering structures that were designed to meet a single or a very limited number of objectives. Today most water-resource systems are fully developed, but society is asking that the existing systems be operated to meet multiple objectives, which often were not considered in the original system design. Sediment related problems that seem to be of highest priority today include: 1. The relation of sediment transport to the transport and fate of attached pollutants, 2. Documentation of the mean sediment concentration and load as well as the natural variability of instantaneous sediment concentrations and loads as related to land use, and 3. Evaluation of the effect of sediment on fish and wildlife habitat. The sediment program of the U.S. Geological Survey (USGS) is changing in response to these changing priorities as it attempts to remain relevant and responsive to current problems.
Subject Headings: Water resources | Sediment transport | Water pollution | Concentrated loads | Sediment loads | Geology | Geological surveys
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