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THE EFFECTS OF DIURNAL MIXING ON THERMAL STRATIFICATION OF STATIC IMPOUNDMENTS 1
Author(s) -
Hirshburg R. I.,
Goodling J. S.,
Maples G.
Publication year - 1976
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1976.tb00251.x
Subject(s) - stratification (seeds) , mixing (physics) , thermal stratification , convection , isothermal process , nocturnal , mechanics , convective mixing , thermal , environmental science , diffusion , potential temperature , atmospheric sciences , thermodynamics , physics , turbulence , quantum mechanics , astronomy , dormancy , biology , seed dormancy , botany , germination
The time variation in the temperature distribution of a static water impoundment is predicted. The body of water is modeled as a discrete number of horizontally isothermal layers and the energy equation is solved using an implicit numerical scheme. Vertical energy transport mechanisms included are solar absorption, molecular diffusion, and convective mixing due to nocturnal turnover. The latter mechanism, called diurnal mixing, is found to have a profound effect on the stratification, particularly in the eplimnion patterns for a typical deep static impoundment.