New Pathways for Moist Convection Parameterisation
This chapter starts with an introduction to standard mass-flux parameterisations and closures for moist convection which are used in most large-scale models. The shortcomings of this approach will be discussed, especially for higher resolutions where standard assumptions such as quasi-equilibrium start to break down. New pathways that use a stochastic approach and are scale aware will be discussed. These will also allow to incorporate the effect of mesoscale organisation into parameterisations for moist convection.
KeywordsClouds Moist convection Stochastic parameterisation Grey zone Conditional Markov Chains
- de Rooy, W.C., P. Bechtold, K. Frohlich, C. Hohenegger, H.H.J. Jonker, D. Mironov, A.P. Siebesma, J. Teixeira, and J.-I. Yano. 2013. Entrainment and detrainment in cumulus convection: an overview. QJRMS 139 (670): 1–19.Google Scholar
- Dee, D.P., S.J. Uppala, A.P. Simmons, P. Berrisford, S. Poli, U. Kobayashi, A. Andrae, M.G. Balmaseda, P. Balsamo, P. Bauer, M. Bechtold, A.C. Beljaars, L.J. van de Berg, N. Bidlot, C. Bormann, R. Delsol, M. Dragani, J. Fuentes, A.L. Geer, B. Haimberger, S.H. Healy, V. Hersbach, E.L. Hlm, P. Isaksen, M. Kllberg, M. Khler, P. Matricardi, A.M. McNally, B. MongeSanz, J.J. Morcrette, B.K. Park, C. Peubey, P. de Rosnay, C. Tavolato, J.N. Thpaut, and F. Vitart. 2011. The ERAInterim reanalysis: Configuration and performance of the data assimilation system. Quarterly Journal of the Royal Meteorological Society 137 (656): 553–597.CrossRefGoogle Scholar
- Kumar, V.V., C. Jakob, A. Protat, P.T. May, and L. Davies. 2013. The four cumulus cloud modes and their progression during rainfall events: AC-band polarimetric radar perspective. Journal of Geophysical Research: Atmospheres 118 (15): 8375–8389.Google Scholar