Skip to Main Content
Estimating total suspended sediment yield with probability samplingAuthor(s): Robert B. Thomas
Source: Water Resources Research 21(9): 1381-1388.
Publication Series: Miscellaneous Publication
PDF: View PDF (121 KB)
DescriptionThe ""Selection At List Time"" (SALT) scheme controls sampling of concentration for estimating total suspended sediment yield. The probability of taking a sample is proportional to its estimated contribution to total suspended sediment discharge. This procedure gives unbiased estimates of total suspended sediment yield and the variance of the estimate while automatically emphasizing sampling at higher flows. When applied to real data with known yield, the SALT method underestimated total suspended sediment yield by less than 1%, whereas estimates by the flow duration sediment rating curve method averaged about 51% underestimation. Implementing the SALT scheme requires obtaining samples with a pumping sampler, stage sensing device, and small battery-powered computer
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationThomas, Robert B. 1985. Estimating total suspended sediment yield with probability sampling. Water Resources Research 21(9): 1381-1388.
KeywordsPSW4351, Caspar Creek, Selection At List Time, SALT, suspended sediment, pumping sampler, measuremen
- Piecewise SALT sampling for estimating suspended sediment yields
- Calibrating SALT: a sampling scheme to improve estimates of suspended sediment yield
- An evaluation of flow-stratified sampling for estimating suspended sediment loads
XML: View XML