Articles | Volume 13
https://doi.org/10.5194/asr-13-63-2016
https://doi.org/10.5194/asr-13-63-2016
19 Apr 2016
 | 19 Apr 2016

Representation of the grey zone of turbulence in the atmospheric boundary layer

Rachel Honnert

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Cited articles

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Boutle, I. A., Eyre, J. E. J., and Lock, A. P.: Seamless Stratocumulus SImulation across the Turbulent Grey Zone, Mon. Weather Rev., 142, 1655–1668, 2014.
Couvreux, F., Guichard, F., Redelsperger, J.-L., Kiemle, C., Masson, V., Lafore, J.-P., and Flamant, C.: Water Vapour variability within a convective boundary-layer assessed by large-eddy simulations and IHOP2002 observations, Q. J. Roy. Meteorol. Soc., 131, 2665–2693, 2015.
Cuxart, J., Bougeault, P., and Redelsperger, J.-L.: A turbulence scheme allowing for mesoscale and large-eddy simulations, Q. J. Roy. Meteorol. Soc., 126, 1–30, 2000.
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Numerical weather prediction model forecasts at hectometric resolution are now possible. This range of scales is called the "grey zone of turbulence" as turbulence structures are neither mainly resolved nor entirely subgrid. Turbulence parametrizations have to be adapted, and the adaptations at these scales depend on the existing parametrizations at larger or smaller scales. This study explains the modifications in current Météo France models to the grey zone of turbulence.