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Chapter 3. Turbulent diffusion and
interactions with the surface
IFS documentation Front Page
Chapter 1. Overview
Chapter 2. Radiation
Chapter 3. Turbulent diffusion and interactions with the surface
Chapter 4. Subgrid-scale orographic drag
Chapter 5. Convection
Chapter 6. Clouds and large-scale precipitation
Chapter 7. Land suface parametrization
Chapter 8. Methane oxidation
Chapter 9. Climatological data
REFERENCES
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3.6 Tendency calculations and energy dissipation
Total wind and specific humidity tendencies after the vertical diffusion (including also the dynamics and the radiation) are
|
(3.63) |
The kinetic energy lost by the mean flow through the diffusion process,
, is
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(3.64) |
The kinetic energy lost is assumed to be transformed locally into internal energy. This procedure by-passes the subgrid scale energy cascade, but it allows to have a closed energy cycle in the model (the term is generally small)
|
(3.65) |
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05.04.2002 |
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