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On the dependence of boundary-layer ventilation on frontal type

Agusti-Panareda, A., Gray, S. L. and Belcher, S. E. (2009) On the dependence of boundary-layer ventilation on frontal type. Journal of Geophysical Research, 114. D05305. ISSN 0148-0227

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To link to this article DOI: 10.1029/2008JD010694

Abstract/Summary

Case study simulations with idealized tracers have been used to determine the relationship between the dynamics and conceptual representations of different midlatitude frontal systems and the amount, distribution, and time scale of boundary layer ventilation by these systems. The key features of ventilation by a kata– and ana–cold frontal system are found to be quantitatively and also often qualitatively similar to the main ventilation pathways, which are the conveyor belts, cloud head, and other convection. The conveyor belts and cloud head occur within cloud, implying that they can be identified using satellite imagery. Differences in the transport by the two systems can be related to their conceptual representations and include a sensitive dependence on the diurnal cycle for the kata- but not the ana-cold frontal case.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Science > School of Mathematical and Physical Sciences > Department of Meteorology
ID Code:1969
Uncontrolled Keywords:EXTRATROPICAL CYCLONES; FREE TROPOSPHERE; TRANSPORT; MODEL; AIR; PRECIPITATION; CIRCULATIONS; MECHANISMS; SCHEME
Publisher:American Geophysical Union

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