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Effect of bottom topography, eddy diffusivity, and wind variation on circulation in a two-layer stratified lakeThe steady-state, wind-driven circulation is calculated in a stratified lake composed of two layers having uniform but unequal densities and eddy diffusivities. The position of the thermocline and the velocities in both layers are calculated from an asymptotic solution of the shallow lake equations when the Ekman number in the epilimnion (upper layer) is of order one but the ratio of hypolimnion (lower layer) to epilimnion eddy diffusivities is much less than one. Large differences in the thermocline shape and the velocities occur between the solution for uniform wind stress and the one for unit order wind stress gradients. For the latter solution the hypolimnion eddy diffusivity magnitude and the bottom topography have a large and important effect.
Document ID
19730011706
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Technical Note (TN)
Authors
Gedney, R. T. (NASA Lewis Research Center Cleveland, OH, United States)
Lick, W. (Case Western Reserve Univ. Cleveland, OH, United States)
Molls, F. B. (NASA Lewis Research Center)
Date Acquired
September 2, 2013
Publication Date
March 1, 1973
Subject Category
Geophysics
Report/Patent Number
NASA-TN-D-7235
E-7032
Accession Number
73N20433
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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