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Modeling the World’s Most Violent Thunderstorms
Computing in Science & Engineering ( IF 2.1 ) Pub Date : 2021-03-30 , DOI: 10.1109/mcse.2021.3069771
Leigh Orf 1
Affiliation  

Each year tornadoes are responsible for loss of life and property as they wreak destruction across large swaths of the United States. The storms that cause the most damaging tornadoes, supercell thunderstorms, have been the subject of numerical modeling since the dawn of the supercomputing age in the late 1970s. In 2020, models run on supercomputers can simulate individual thunderstorms with unprecedented realism where well-resolved multiple-vortex tornadoes form as the result of physical processes occurring within the model. Research conducted on the Frontera supercomputer includes identifying specific processes occurring in supercells that result in the most devastating tornadoes, those ranked EF4/5 on the Enhanced Fujita scale. While such tornadoes account for a small fraction of observed tornadoes, they cause the bulk of the damage and fatalities, and only by increasing our knowledge of what discerns these rare but powerful storms from less damaging storms will better forecasts be possible.

中文翻译:

模拟世界上最猛烈的雷暴

每年龙卷风都会造成生命和财产损失,因为它们在美国大片地区造成破坏。自 1970 年代后期超级计算时代开始以来,造成最具破坏性的龙卷风的风暴,即超级单体雷暴,一直是数值建模的主题。2020 年,在超级计算机上运行的模型可以以前所未有的真实感模拟单个雷暴,其中由于模型内发生的物理过程而形成解析良好的多涡旋龙卷风。在 Frontera 超级计算机上进行的研究包括确定超级单体中发生的导致最具破坏性的龙卷风的特定过程,这些过程在增强型藤田规模上排名 EF4/5。虽然这种龙卷风只占观察到的龙卷风的一小部分,
更新日期:2021-03-30
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