Print Email Facebook Twitter Detrainment in deep convection Title Detrainment in deep convection Author Böing, S.J. Siebesma, A.P. Korpershoek, J.D. Jonker, H.J.J. Faculty Civil Engineering and Geosciences Department Geoscience & Remote Sensing Date 2012-10-31 Abstract This study explores the mechanisms that determine detrainment in deep cumulus convection. A set of 90 high-resolution Large Eddy Simulations is used to systematically explore the sensitivity of continental deep convection to the relative humidity and stability of the free troposphere. It appears that variations in the mass-flux profiles are determined by detrainment, rather than entrainment. The detrainment shows a strong dependence on the critical mixing ratio, a dimensionless parameter which describes which mixtures of cloud core and environmental air are positively buoyant. A conceptual approach to the parameterization of detrainment is proposed on the basis of these results. Subject deep convectiondetrainmententrainmenthumiditystability To reference this document use: http://resolver.tudelft.nl/uuid:83e91bac-87e9-49a8-aa6b-b8e5f793f77b DOI https://doi.org/10.1029/2012GL053735 Publisher American Geophysical Union Embargo date 2013-04-30 ISSN 0094-8276 Source Geophysical Research Letters, 39 (20), 2012 Part of collection Institutional Repository Document type journal article Rights © 2012 American Geophysical Union Files PDF Boing_2012.pdf 658.66 KB Close viewer /islandora/object/uuid:83e91bac-87e9-49a8-aa6b-b8e5f793f77b/datastream/OBJ/view