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Suspended sediment in the St. Francis River at St. Francis, Arkansas, 1986-95

Open-File Report 99-227
By: , , and 
https://doi.org/10.3133/ofr99227

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Abstract

Daily suspended-sediment concentrations were analyzed from the St. Francis River at St. Francis, Arkansas during 1986 through 1995. Suspended-sediment particle size distribution was measured in selected samples from 1978 through 1998. These data are used to assess changes in suspended-sediment concentrations and loads through time. Suspended-sediment concentrations were positively related to discharge. At higher flows, percent silt-clay was negatively related to discharge. Nonparametric trend analysis (Mann-Kendall test) of suspended-sediment concentration over the period of record indicated a slight decrease in concentration. Flow-adjusted residuals of suspended-sediment concentration also decreased slightly through the same period. No change was identified in annual suspended-sediment load or annual flow-weighted concentration. Continued monitorig of daily-suspended-sediment concentrations at this site and others, and similar data analysis at other sites where data are available will provide a better understanding of sediment transport withint the St. Francis River.

Suggested Citation

Green, W.R., Barks, C.S., Hall, A.P., 2000, Suspended sediment in the St. Francis River at St. Francis, Arkansas, 1986-95: U.S. Geological Survey Open-File Report 99-227, iii, 9 leaves :ill., map ;28 cm., https://doi.org/10.3133/ofr99227.

ISSN: 2331-1258 (online)

Publication type Report
Publication Subtype USGS Numbered Series
Title Suspended sediment in the St. Francis River at St. Francis, Arkansas, 1986-95
Series title Open-File Report
Series number 99-227
DOI 10.3133/ofr99227
Year Published 2000
Language ENGLISH
Publisher U.S. Department of the Interior, U.S. Geological Survey ; Branch of Information Services [distributor],
Description iii, 9 leaves :ill., map ;28 cm.
Additional publication details