Monthly Weather Review · 2000 · 825 citations · 27 references
Natural SciencesEarth SciencesMeteorologyAtmospheric ScienceNumerical Weather PredictionWeather ForecastingAtmospheric Surface LayerBoundary Layer CouplingBoundary Layer MixingBoundary-layer DynamicsBoundary-layer StructurePlanetary Boundary LayerBoundary Layer Mixing ParameterizationEntrainment ParameterizationParameterization Of Atmospheric MixingPrediction ModelsSurface Moisture FluxesTurbulent Boundary Layer MixingTurbulent Boundary LayersTurbulent Mixing Schemes
A new boundary layer turbulent mixing scheme has been developed for use in the UKMO weather forecasting and climate prediction models. This includes a representation of nonlocal mixing (driven by both surface fluxes and cloud-top processes) in unstable layers, either coupled to or decoupled from the surface, and an explicit entrainment parameterization. The scheme is formulated in moist conserved variables so that it can treat both dry and cloudy layers. Details of the scheme and examples of its performance in single-column model tests are presented.
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