Journal article

Long-Lived Mesoscale Systems in a Low-Convective Inhibition Environment. Part II: Downshear Propagation

Mitchell W Moncrieff, Todd P Lane

Journal of the Atmospheric Sciences | American Meteorological Society | Published : 2015

Abstract

Part II of this study of long-lived convective systems in a tropical environment focuses on forward-tilted, downshear-propagating systems that emerge spontaneously from idealized numerical simulations. These systems differ in important ways from the standard mesoscale convective system that is characterized by a rearward-tilted circulation with a trailing stratiform region, an overturning updraft, and a mesoscale downdraft. In contrast to this standard mesoscale system, the downshear-propagating system considered here does not feature a mesoscale downdraft and, although there is a cold pool it is of secondary importance to the propagation and maintenance of the system. The mesoscale downdraf..

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University of Melbourne Researchers

Grants

Awarded by Australian Research Council's Future Fellowships


Awarded by Centre of Excellence programs


Funding Acknowledgements

TPL acknowledges support from the Australian Research Council's Future Fellowships (FT0990892) and Centre of Excellence (CE110001028) programs. We thank George Bryan for providing his numerical model and useful discussions and Rich Rotunno for helpful discussion. We also thank Morris Weisman and the two anonymous reviewers for their useful and constructive comments.