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DECAY OF CONVECTIVE TURBULENCE REVISITED.
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- Author(s): SORBJAN, ZBIGNIEW
- Source:
Boundary-Layer Meteorology; Mar1997, Vol. 82 Issue 3, p503-517, 15p
- Subject Terms:
- Additional Information
- Abstract:
Results of a large-eddy simulation of a decaying convective mixed layer over land are presented. The time evolution of the mixed layer is forced by the surface heat flux gradually decreasing with time. The results obtained show that the decay of the turbulent kinetic energy is governed by two scales, the external time scale controlling the surface heat flux changes, and the convective time scale. During the simulation, large eddies persist even when the heat flux at the surface becomes negative. A decoupled residual layer of active turbulence is developed above the stable surface layer. The residual layer is marked by large-scale updrafts that are able to penetrate the capping inversion layer and induce entrainment. [ABSTRACT FROM AUTHOR]
- Abstract:
Copyright of Boundary-Layer Meteorology is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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