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首页> 外文期刊>SOLA: Scientific Online Letters on the Atmosphere >Quantitative Estimation of Strong Winds in an Urban District during Typhoon Jebi (2018) by Merging Mesoscale Meteorological and Large-Eddy Simulations
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Quantitative Estimation of Strong Winds in an Urban District during Typhoon Jebi (2018) by Merging Mesoscale Meteorological and Large-Eddy Simulations

机译：台风Jebi（2018）在城区强风的定量估计通过合并Messcale气象和大涡模拟

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摘要

An intense tropical cyclone, Typhoon Jebi (2018), landed the central part of Japan and caused severe damages. Quantitative assessment of strong winds in urban districts under typhoon conditions is important to understand the underlying risks. As a preliminary study, we investigate the influences of densely built urban environments on the occurrence of wind gusts in an urban district of Osaka City during Typhoon Jebi by merging mesoscale meteorological and building-resolving large-eddy simulations (LES). With the successful reproduction of the track and intensity of the typhoon in meteorological simulations, the simulated winds at the boundary-layer top of the LES model are used to quantitatively estimate the wind gusts in the urban district. The maximum wind gust in the analysis area of Osaka was estimated as 60-70 m s?1, which is comparable to the wind speed at the height of about 300 m.
机译：一个强烈的热带旋风，台风济布（2018年），降落了日本中部，造成了严重的损害。在台风条件下城区强风的定量评估对于了解潜在风险非常重要。作为初步研究，我们通过合并Mescle气象和建筑解决大涡模拟（LES），调查浓密建立的城市环境对大阪市市区风阵风的影响。随着气象模拟中台风的轨道和强度的成功再现，LES模型边界层顶部的模拟风用于定量估计市区的风阵风。大阪分析区域中的最大风阵风估计为60-70m S？1，其与约300μm的高度的风速相当。

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