Larry Mahrt
Oregon State University, US

New understanding of very stable boundary layers

Time and place
Tue 21 May 2013, 11.15
Room C609, Arrhenius Laboratory, 6th floor

(This event has taken place)


Recent analyses reveal interesting complexities in the very stable boundary layer that include frequent large directional shear, near-surface wind maxima, wind profile inflection points and continual nonstationarity.  Various transient modes interact with thin local  drainage flows that are generated by even weak small-scale slopes. Different types of transient modes are briefly surveyed. Most of these processes are sub grid, yet are not included in existing subgrid parameterization schemes. Possible strategies for generalization of the bulk formula for surface fluxes will be presented.