Abstract
The parameterization of the stably stratified atmospheric boundary layer is a difficult issue, having a significant impact on medium-range weather forecasts and climate integrations. To pursue this further, a moderately stratified Arctic case is simulated by nineteen single-column turbulence schemes. Statistics from a large-eddy simulation intercomparison made for the same case by eleven different models are used as a guiding reference. The single-column parameterizations include research and operational schemes from major forecast and climate research centres. Results from first-order schemes, a large number of turbulence kinetic energy closures, and other models were used. There is a large spread in the results; in general, the operational schemes mix over a deeper layer than the research schemes, and the turbulence kinetic energy and other higher-order closures give results closer to the statistics obtained from the large-eddy simulations. The sensitivities of the schemes to the parameters of their turbulence closures are partially explored
| Original language | English |
|---|---|
| Pages (from-to) | 273-303 |
| Number of pages | 31 |
| Journal | Boundary-Layer Meteorology |
| Volume | 118 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2006 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 13 Climate Action
Keywords
- turbulence closure-model
- large-eddy simulation
- part i
- scheme
- parameterization
- formulation
- diffusion
- dynamics
- surfaces
- system
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