Review of non-local mixing in turbulent atmospheres: Transilient turbulence theory |
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Authors: | Roland B Stull |
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Institution: | (1) Dept. of Meteorology, University of Wisconsin, 53706-1695 Madison, WI, USA |
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Abstract: | Some of the larger eddies in a turbulent region can be coherent structures that turbulently advect air parcels across large vertical distances before smaller eddies mix the parcels with the environment. Such a process is nonlocal rather than diffusive. Transilient turbulence theory, named after a Latin word maaning jump over , provides a framework for considering the ensemble-averaged effect of many eddies of different sizes on the net nonlocal mixing in the vertical. Nonlocal turbulence statistics can then be examinated, and nonlocal first-order closure can be formulated. |
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