The ICON single-column mode

  • The single-column mode (SCM) of the ICON (ICOsahedral Nonhydrostatic) modeling framework is presented. The primary purpose of the ICON SCM is to use it as a tool for research, model evaluation and development. Thanks to the simplified geometry of the ICON SCM, various aspects of the ICON model, in particular the model physics, can be studied in a well-controlled environment. Additionally, the ICON SCM has a reduced computational cost and a low data storage demand. The ICON SCM can be utilized for idealized cases—several well-established cases are already included—or for semi-realistic cases based on analyses or model forecasts. As the case setup is defined by a single NetCDF file, new cases can be prepared easily by the modification of this file. We demonstrate the usage of the ICON SCM for different idealized cases such as shallow convection, stratocumulus clouds, and radiative transfer. Additionally, the ICON SCM is tested for a semi-realistic case together with an equivalent three-dimensional setup and the large eddy simulation mode of ICON. Such consistent comparisons across the hierarchy of ICON configurations are very helpful for model development. The ICON SCM will be implemented into the operational ICON model and will serve as an additional tool for advancing the development of the ICON model.

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Author:Ivan Bašták Ďurán, Martin Köhler, Astrid Eichhorn-Müller, Vera Maurer, Juerg Schmidli, Annika Schomburg, Daniel Klocke, Tobias Göcke, Sophia Schäfer, Linda Schlemmer, Noviana Dewani
Parent Title (English):Atmosphere
Place of publication:Basel
Document Type:Article
Date of Publication (online):2021/07/14
Date of first Publication:2021/07/14
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2021/07/27
Tag:ICON model; parameterization development; single-column mode; validation
Issue:7, art. 906
Page Number:24
First Page:1
Last Page:24
Institutes:Geowissenschaften / Geographie / Geowissenschaften
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 55 Geowissenschaften, Geologie / 550 Geowissenschaften
Open-Access-Publikationsfonds:Geowissenschaften / Geographie
Licence (German):License LogoCreative Commons - Namensnennung 4.0