Stochastic downscaling method: application to wind refinement

Stochastic downscaling method: application to wind refinement
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随机降尺度方法:在风细化中的应用

DOI:
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发表时间:
2009
期刊:
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通讯作者:
T. Salameh
T. Salameh
中科院分区:
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文献类型:
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作者:
F. Bernardin;M. Bossy;C. Chauvin;P. Drobinski;A. Rousseau;T. Salameh

文献摘要

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在本文中,我们提出了一种新的随机降尺度方法:在提供大尺度风的数值预测的基础上,利用局部随机模型改进小尺度风的近似。我们首先回顾借鉴蒲柏的拉格朗日随机模型的框架。然后,我们从理论和数值的角度使其适应我们的气象框架。最后,我们给出了一些与地中海风的模拟相对应的有希望的数值结果。
In this article, we propose a new stochastic downscaling method: provided a numerical prediction of wind at large scale, we aim to improve the approximation at small scales thanks to a local stochastic model. We first recall the framework of a Lagrangian stochastic model borrowed from Pope. Then, we adapt it to our meteorological framework, both from the theoretical and numerical viewpoints. Finally, we present some promising numerical results corresponding to the simulation of wind over the Mediterranean Sea.