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The closure problem for turbulence in meteorology and oceanography (1985)

Pierson, W. J., Jr.

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Publication Date: 2019-07-12

Description: The dependent variables used for computer based meteorological predictions and in plans for oceanographic predictions are wave number and frequency filtered values that retain only scales resolvable by the model. Scales unresolvable by the grid in use become 'turbulence'. Whether or not properly processed data are used for initial values is important, especially for sparce data. Fickian diffusion with a constant eddy diffusion is used as a closure for many of the present models. A physically realistic closure based on more modern turbulence concepts, especially one with a reverse cascade at the right times and places, could help improve predictions.

Keywords: GEOSCIENCES (GENERAL)

Type: PCH/PhysicoChemical Hydrodynamics (ISSN 0191-9059); 6; 5-6

Format: text

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