Articles | Volume 8, issue 2
Model description paper
18 Feb 2015
Model description paper |  | 18 Feb 2015

ASAM v2.7: a compressible atmospheric model with a Cartesian cut cell approach

M. Jähn, O. Knoth, M. König, and U. Vogelsberg

Related authors

Vertical wind retrieved by airborne lidar and analysis of island induced gravity waves in combination with numerical models and in situ particle measurements
Fernando Chouza, Oliver Reitebuch, Michael Jähn, Stephan Rahm, and Bernadett Weinzierl
Atmos. Chem. Phys., 16, 4675–4692,,, 2016
Short summary
Investigations of boundary layer structure, cloud characteristics and vertical mixing of aerosols at Barbados with large eddy simulations
M. Jähn, D. Muñoz-Esparza, F. Chouza, O. Reitebuch, O. Knoth, M. Haarig, and A. Ansmann
Atmos. Chem. Phys., 16, 651–674,,, 2016
Short summary

Related subject area

Atmospheric sciences
Description and evaluation of the new UM–UKCA (vn11.0) Double Extended Stratospheric–Tropospheric (DEST vn1.0) scheme for comprehensive modelling of halogen chemistry in the stratosphere
Ewa M. Bednarz, Ryan Hossaini, N. Luke Abraham, and Martyn P. Chipperfield
Geosci. Model Dev., 16, 6187–6209,,, 2023
Short summary
A robust error correction method for numerical weather prediction wind speed based on Bayesian optimization, variational mode decomposition, principal component analysis, and random forest: VMD-PCA-RF (version 1.0.0)
Shaohui Zhou, Chloe Yuchao Gao, Zexia Duan, Xingya Xi, and Yubin Li
Geosci. Model Dev., 16, 6247–6266,,, 2023
Short summary
Description and performance of a sectional aerosol microphysical model in the Community Earth System Model (CESM2)
Simone Tilmes, Michael J. Mills, Yunqian Zhu, Charles G. Bardeen, Francis Vitt, Pengfei Yu, David Fillmore, Xiaohong Liu, Brian Toon, and Terry Deshler
Geosci. Model Dev., 16, 6087–6125,,, 2023
Short summary
A simplified non-linear chemistry transport model for analyzing NO2 column observations: STILT–NOx
Dien Wu, Joshua L. Laughner, Junjie Liu, Paul I. Palmer, John C. Lin, and Paul O. Wennberg
Geosci. Model Dev., 16, 6161–6185,,, 2023
Short summary
The Hydro-ABC model (Version 2.0): a simplified convective-scale model with moist dynamics
Jiangshan Zhu and Ross Noel Bannister
Geosci. Model Dev., 16, 6067–6085,,, 2023
Short summary

Cited articles

Adcroft, A., Hill, C., and Marshall, J.: Representation of topography by shaved cells in a height coordinate ocean model, Mon. Weather Rev., 125, 2293–2315, 1997.
Berger, M. and Helzel, C.: A Simplified h-Box Method for Embedded Boundary Grids, Siam J. Sci. Comput., 34, A861–A888.
Bott, A.: Theoretical considerations on the mass and energy consistent treatment of precipitation in cloudy atmospheres, Atmos. Res., 89, 262–269, 2008.
Braun, F. J.: Mesoskalige Modellierung der Bodenhydrologie, Wiss. Berichte des Inst. f. Meteor. u. Klimat. d. Universität Karlsruhe, 30, 2002.
Bryan, G. H. and Fritsch, J. M.: A benchmark simulation for moist nonhydrostatic numerical models, Mon. Weather Rev., 130, 2917–2928, 2002.
Short summary
A detailed description of the All Scale Atmospheric Model (ASAM) is presented. To include obstacles or orographical structures within the Cartesian grid, the cut cell method is used. Discretization is realized by a mixture of finite differences and finite volumes together with a linear-implicit Rosenbrock time integration scheme. Results of idealized test cases are shown, which include conservation tests as well as convergence studies with respect to model accuracy.