Lateral mixing in the Mississippi River below the confluence with the Ohio River

Water Resources Research
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Abstract

Lateral dispersion coefficients for two dispersants were determined for three sections of the Mississippi River below the confluence with the Ohio River. The dispersants were the specific conductance and an industrial organic compound (trimethyltriazinetrione). Three models based on the stream tube concept were used, and lateral dispersion coefficients computed from these models were comparable. Coefficients for the two dispersants also were comparable. Lateral dispersion coefficients were consistent with expectations based on the characteristics of the river sections. Overall average values were 0.444 m2/s for a relatively straight section of river, 1.69 m2/s for a section containing two sharp bends, and 2.22 m2/s for a long section containing four sharp bends and several small islands. The lateral dispersion coefficients measured for the Mississippi River are consistent with literature data and a water discharge relation. Results of this study provide lateral dispersion coefficients for a water discharge not previously reported in the literature as well as new values for the Mississippi River.

Publication type Article
Publication Subtype Journal Article
Title Lateral mixing in the Mississippi River below the confluence with the Ohio River
Series title Water Resources Research
DOI 10.1029/2003WR002381
Volume 40
Issue 5
Year Published 2004
Language English
Publisher American Geophysical Union
Contributing office(s) Toxic Substances Hydrology Program
Description W05207; 12 p.
Country United States
Other Geospatial Ohio River, Mississippi River
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