- document
-
Neggers, R.A.J. (author), Ackerman, Andrew S. (author), Angevine, W. M. (author), Bazile, Eric (author), Beau, I. (author), Blossey, P. N. (author), Boutle, I. A. (author), de Bruijn, C. (author), cheng, A (author), van der Dussen, J.J. (author), Fletcher, J. (author), Dal Gesso, S. (author), Jam, A. (author), Kawai, H (author), Cheedela, S. K. (author), Larson, V. E. (author), Lefebvre, Marie Pierre (author), Lock, A. P. (author), Meyer, N. R. (author), de Roode, S.R. (author), de Rooy, WC (author), Sandu, I (author), Xiao, H (author), Xu, K. M. (author)Results are presented of the GASS/EUCLIPSE single-column model intercomparison study on the subtropical marine low-level cloud transition. A central goal is to establish the performance of state-of-the-art boundary-layer schemes for weather and climate models for this cloud regime, using large-eddy simulations of the same scenes as a...journal article 2017
- document
-
Zhang, M. (author), Bretherton, C.S. (author), Blossey, P.N. (author), Austin, P.H. (author), Bacmeister, J.T. (author), Bony, S. (author), Brient, F. (author), Cheedela, S.K. (author), Cheng, A. (author), Del Genio, A.D. (author), De Roode, S.R. (author), Endo, S. (author), Franklin, C.N. (author), Golaz, J.C. (author), Hannay, C. (author), Heus, T. (author), Isotta, F.A. (author), Dufresne, J.L. (author), Kang, I.S. (author), Kawai, H. (author), Köhler, M. (author), Larson, V.E. (author), Liu, Y. (author), Lock, A.P. (author), Lohmann, U. (author), Khairoutdinov, M.F. (author), Molod, A.M. (author), Neggers, R.A.J. (author), Rasch, P. (author), Sandu, I. (author), Senkbeil, R. (author), Siebesma, A.P. (author), Siegenthaler-Le Drian, C. (author), Stevens, B. (author), Suarez, M.J. (author), Xu, K.M. (author), Von Salzen, K. (author), Webb, M.J. (author), Wolf, A. (author), Zhao, M. (author)CGILS—the CFMIP-GASS Intercomparison of Large Eddy Models (LESs) and single column models (SCMs)—investigates the mechanisms of cloud feedback in SCMs and LESs under idealized climate change perturbation. This paper describes the CGILS results from 15 SCMs and 8 LES models. Three cloud regimes over the subtropical oceans are studied: shallow...journal article 2013
- document
-
Neggers, R.A.J. (author), Siebesma, A.P. (author)This study explores the opportunities created by subjecting a system of interacting fast-acting parameterizations to long-term single-column model evaluation against multiple independent measurements at a permanent meteorological site. It is argued that constraining the system at multiple key points facilitates the tracing and identification of...journal article 2013
- document
-
Burchard, H. (author), Schuttelaars, H.M. (author), Rockwell Geyer, W. (author)In this idealized numerical modeling study, the composition of residual sediment fluxes in energetic (e.g., weakly or periodically stratified) tidal estuaries is investigated by means of one-dimensional water column models, with some focus on the sediment availability. Scaling of the underlying dynamic equations shows dependence of the results...journal article 2013
- document
-
Van de Wiel, B.J.H. (author), Moene, A.F. (author), Jonker, H.J.J. (author), Baas, P. (author), Basu, S. (author), Donda, J.M.M. (author), Sun, J. (author), Holtslag, A.A.M. (author)The collapse of turbulence in the nocturnal boundary layer is studied by means of a simple bulk model that describes the basic physical interactions in the surface energy balance. It is shown that for a given mechanical forcing, the amount of turbulent heat that can be transported downward is limited to a certain maximum. In the case of weak...journal article 2012