Atmospheric Reaeration in a River Using Productivity Analysis

by George M. Hornberger, (M.ASCE), Asst. Prof. of Environmental Sci.; Univ. of Virginia, Charlottesville, Va.,
Mahlon G. Kelly, Asst. Prof. of Environmental Sci.; Univ. of Virginia, Charlottesville, Va.,


Serial Information: Journal of the Environmental Engineering Division, 1975, Vol. 101, Issue 5, Pg. 729-739


Document Type: Journal Paper

Discussion: Shultz David J. (See full record)
Closure: (See full record)

Abstract: Two new methods for estimating the reaeration coefficient in rivers have been developed. The methods use measurements of dissolved oxygen and incident radiation with a solution to the oxygen mass balance equation. Parameters are estimated by minimizing the squared error between predicted and observed oxygen values. Night-time values of dissolved oxygen can be used to estimate the reaeration coefficient provided respiration is nearly constant. The coefficient can also be estimated by comparing net productivity with incident radiation. Field studies show the two methods to be reliable.

Subject Headings: Dissolved oxygen | Aeration | Ecological restoration | Rivers and streams | Radiation | Field tests | Parameters (statistics)

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