Suspended sediment in the St. Francis River at St. Francis, Arkansas, 1986-95
Open-File Report
99-227
By: W. Reed Green, C. Shane Barks, and Alan P. Hall
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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.
| 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 |
| Edition | - |
| 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. |
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