Mean and Local Transport in Air

Schlünzen, K. Heinke; Krell, Ute

doi:10.1007/978-3-642-78294-7_10

Circulation and Contaminant Fluxes in the North Sea 1994

DOI: 10.1007/978-3-642-78294-7_10

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Mean and Local Transport in Air

K. Heinke Schlünzen¹,

Ute Krell²

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1996

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Cited by 3 publications

References 21 publications

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Modelling the arctic convective boundary-layer with different turbulence parameterizations

Lüpkes

Schlünzen²

1996

Boundary-Layer Meteorol

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Different parameterizations of subgrid-scale fluxes are utilized in a nonhydrostatic and anelastic mesoscale model to study their influence on simulated Arctic cold air outbreaks. A local closure, a profile closure and two nonlocal closure schemes are applied, including an improved scheme, which is based on other nonlocal closures. It accounts for continuous subgrid-scale fluxes at the top of the surface layer and a continuous Prandtl number with respect to stratification. In the limit of neutral stratification the improved scheme gives eddy diffusivities similar to other parameterizations, whereas for strong unstable stratifications they become much larger and thus turbulent transports are more efficient. It is shown by comparison of model results with observations that the application of simple nonlocal closure schemes results in a more realistic simulation of a convective boundary layer than that of a local or a profile closure scheme. Improvements are due to the nonlocal formulation of the eddy diffusivities and to the inclusion of heat transport, which is independent of local gradients (countergradient transport).

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Modelling the arctic convective boundary-layer with different turbulence parameterizations

Lüpkes

Schlünzen²

1996

Boundary-Layer Meteorol

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Modelling of ozone in Northrhine-Westphalia; effect of emission reduction on ozone distribution

Schoenemeyer¹,

Emeis²,

Wichmann-Fiebig

1996

Physics and Chemistry of the Earth

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Inland and Offshore Propagation Speeds of a Sea Breeze from Simulations and Measurements

Finkele

1998

Boundary-Layer Meteorology

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Mean and Local Transport in Air

Cited by 3 publications

References 21 publications

Modelling the arctic convective boundary-layer with different turbulence parameterizations

Modelling the arctic convective boundary-layer with different turbulence parameterizations

Modelling of ozone in Northrhine-Westphalia; effect of emission reduction on ozone distribution

Inland and Offshore Propagation Speeds of a Sea Breeze from Simulations and Measurements

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