Large eddy simulation using the general circulation model ICON

被引：152

作者：

Dipankar, Anurag ^{[1
]}

Stevens, Bjorn ^{[1
]}

Heinze, Rieke ^{[2
]}

Moseley, Christopher ^{[1
]}

Zaengl, Guenther ^{[3
]}

Giorgetta, Marco ^{[1
]}

Brdar, Slavko ^{[3
]}

机构：

[1] Max Planck Inst Meteorol, D-20146 Hamburg, Germany

[2] Leibniz Univ Hannover, Inst Meteorol & Climatol, D-30167 Hannover, Germany

[3] Deutsch Wetterdienst, Offenbach, Germany

来源：

JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS | 2015年 / 7卷 / 03期

关键词：

PLANETARY BOUNDARY-LAYER; PARAMETERIZATION; CONVECTION; RESOLUTION; GATE; MOISTURE; FLUXES; SCHEME; TESTS; BOMEX;

D O I：

10.1002/2015MS000431

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

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 Zangl 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 configurationsone being a dry convective boundary layer and the other a cumulus-topped planetary boundary layer.

引用

页码：963 / 986

页数：24

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