Author(s): John R. Gray; G. Douglas Glysson
Linked Author(s):
Keywords: Fluvial Sediment; Monitoring; Research; Sediment data quality; Collaboration
Abstract: Sediment-discharge information in the United States is derived by a number of methods that can differ in accuracy and reliability. Information derived from traditional measurements using standardized samplers and sampling methods tends to be the most accurate and reliable, but are usually temporally sparse and the most expensive to collect. Data derived from estimating equations may be comparatively inexpensive to obtain but are in many cases are the least accurate and reliable. New sediment-surrogate technologies show considerable promise toward providing the types and temporal density of fluvialsediment data needed to improve sediment-discharge measurements and estimates for comparison to established accuracy criteria. In concert with increased international collaboration, the prospects for increasing production of more reliable and quantifiably accurate sediment-discharge information are promising.
Year: 2004