Kinetic Energy Budget Equations of Rotational and Divergent Flow in Terrain-following Coordinates

In this study, kinetic energy budget equations of rotational and divergent flow in pressure coordinates are derived on terrain-following coordinates. The new formulation explicitly shows the terrain effects and can be applied directly to model-simulated dynamic and ther- modynamic fields on the mode...

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Published inAtmospheric and oceanic science letters = Daqi-he-haiyang-kexue-kuaibao Vol. 6; no. 3; pp. 149 - 153
Main Authors Jie, Cao, Ji-Song, Sun, Shou-Ting, Gao, Xiao-Peng, Cui
Format Journal Article
LanguageEnglish
Published Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China%Beijing Meteorological Bureau, Beijing 100089, China 2013
Subjects
动能收支
发展中国家
发散
地形跟随
坐标旋转
模型模拟
流方程
流量
velocity potential
kinetic energy
terrain-following coordinates
streamfunction
southwest vortex
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Summary:In this study, kinetic energy budget equations of rotational and divergent flow in pressure coordinates are derived on terrain-following coordinates. The new formulation explicitly shows the terrain effects and can be applied directly to model-simulated dynamic and ther- modynamic fields on the model＇s original vertical grid. Such application eliminates interpolation error and avoids errors in virtual weather systems in mountainous areas. These advantages and their significance are demonstrated by a numerical study in terrain-following coordinates of a developing vortex after it moves over the Tibetan Plateau in China.
Bibliography:terrain-following coordinates, kinetic energy,southwest vortex, streamfunction, velocity potential
In this study, kinetic energy budget equations of rotational and divergent flow in pressure coordinates are derived on terrain-following coordinates. The new formulation explicitly shows the terrain effects and can be applied directly to model-simulated dynamic and ther- modynamic fields on the model＇s original vertical grid. Such application eliminates interpolation error and avoids errors in virtual weather systems in mountainous areas. These advantages and their significance are demonstrated by a numerical study in terrain-following coordinates of a developing vortex after it moves over the Tibetan Plateau in China.
11-5693/P
ISSN:1674-2834
2376-6123
DOI:10.1080/16742834.2013.11447072