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KMID : 1024520070160050541
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Journal of the Environmental Sciences
2007 Volume.16 No. 5 p.541 ~ p.548
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A Simple Simulation of Parabola-Shaped Clouds in the Lee of a Low Bell-Shaped Mountain Using the ARPS
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Lee Seung-Jae
Lee Hwa-Woon
Kang Sung-Dae
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Abstract
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A three-dimensional linear model and the Advanced Regional Prediction System (ARPS) were used to simulate parabola-shaped disturbances and clouds in the lee of a bell-shaped mountain. The ARPS model was compared in the x-y plane against the linear model’s analytic solution. Under similar conditions with the linear theory, the ARPS produced well-developed parabola-shaped mountain disturbances and confirmed the features are accounted for in the linear regime. A parabola-shaped cloud in the lee of an isolated bell-shaped mountain was successfully simulated in the ARPS after 6 hours of integration time with the prescribed initial and boundary conditions, as well as a microphysical scheme.
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KEYWORD
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Mountain wave, Linear model, Fast Fourier Transform, ARPS, Lee clouds, Froude number
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