Zusammenfassung: | |
ICON (ICOsahedral Nonhydrostatic) is a unified modeling system for global numerical weather prediction (NWP) and climate studies. Validation of its dynamical core against a test suite for numerical weather forecasting has been recently published by Zängl et al. (2014). In the present work, an extension of ICON is presented that enables it to perform as a large eddy simulation (LES) model. The details of the implementation of the LES turbulence scheme in ICON are explained and test cases are performed to validate it against two standard LES models. Despite the limitations that ICON inherits from being a unified modeling system, it performs well in capturing the mean flow characteristics and the turbulent statistics of two simulated flow configurations - one being a dry convective boundary layer and the other a cumulus-topped planetary boundary layer.
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Lizenzbestimmungen: | CC BY-NC-ND 3.0 Unported - https://creativecommons.org/licenses/by-nc-nd/3.0/ |
Publikationstyp: | Article |
Publikationsstatus: | publishedVersion |
Erstveröffentlichung: | 2015 |
Schlagwörter (englisch): | climate prediction, cloud topped boundary layer, convective boundary layer, large eddy simulation, numerical weather forecast, turbulence, Atmospheric thermodynamics, Boundary layer flow, Boundary layers, Forecasting, Turbulence, Weather forecasting, Climate prediction, Cloud-topped boundary layer, Convective boundary layers, Dry convective boundary layer, Numerical weather forecasting, Numerical weather forecasts, Numerical weather prediction, Planetary boundary layers, Large eddy simulation, climate prediction, convective boundary layer, cumulus, general circulation model, global climate, large eddy simulation, model validation, weather forecasting |
Fachliche Zuordnung (DDC): | 500 | Naturwissenschaften |
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