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Large‐Eddy Simulation of Idealized Hurricanes at Different Sea Surface Temperatures
Journal of Advances in Modeling Earth Systems ( IF 6.8 ) Pub Date : 2020-09-16 , DOI: 10.1029/2020ms002057
Hehe Ren 1, 2 , Jimy Dudhia 3 , Hui Li 1, 2
Affiliation  

Idealized hurricanes are studied at four different sea surface temperatures (SSTs) of 26°, 27°, 28°, and 29°C in six nested domains down to 62‐m grid size. For the maximum and the distribution of wind speed, domain D6 (62 m) is similar to domain D5 (185 m) showing convergence near 200 m. For SST of 26°, domain D5 does not have small‐scale turbulence structures like the other three cases, which is an extension of the previous work of Rotunno et al. (2009; https://doi.org/10.1175/2009BAMS2884.1) who only obtained resolved gusts at 62 m. The distribution function of speed changes between the 27° and 28° cases, the latter one having a second peak, related to a structural change. Finally, it is suggested that the damage potential is not simply determined by the maximum wind speed because of the distribution change so a new damage indicator that represents potential damage is proposed.

中文翻译:

不同海面温度下理想飓风的大涡模拟

在26°,27°,28°和29°C的四个不同海面温度(SST)的六个嵌套域(网格大小不超过62-m)中研究了理想的飓风。对于风速的最大值和分布,域D6(62 m)与域D5(185 m)相似,显示在200 m附近会聚。对于26°SST,D5域没有像其他三种情况那样具有小尺度的湍流结构,这是Rotunno等人先前工作的扩展。(2009; https://doi.org/10.1175/2009BAMS2884.1),他们仅获得了62 m的阵风。速度的分布函数在27°和28°情况之间变化,后者具有第二个峰值,与结构变化有关。最后,
更新日期:2020-09-16
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