Simulating the 20 May 2013 Moore, Oklahoma tornado with a 100-metre grid-length NWP model

被引：25

作者：

Hanley, Kirsty E. ^{[1
]}

Barrett, Andrew I. ^{[2
]}

Lean, Humphrey W. ^{[1
]}

机构：

[1] Univ Reading, MetOff Reading, Meteorol Bldg, Reading RG6 6BB, Berks, England

[2] Univ Reading, Dept Meteorol, Reading, Berks, England

来源：

ATMOSPHERIC SCIENCE LETTERS | 2016年 / 17卷 / 08期

关键词：

tornado; Unified Model; 100-metre grid length; OFFICE UNIFIED MODEL; NUMERICAL-SIMULATION; COLD POOLS; CONVECTION; RESOLUTION; SUPERCELL; FORECASTS; SCHEME; THUNDERSTORM; CHALLENGES;

D O I：

10.1002/asl.678

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Since 2013, the Met Office have run a 2.2km horizontal gridlength version of the Unified Model (MetUM) as part of the National Oceanographic and Atmospheric Administration's Hazardous Weather Testbed Spring Forecasting Experiment. In this study, we perform high resolution MetUM simulations of the 20 May 2013 Oklahoma tornado outbreak at horizontal gridlengths between 2.2km and 100 m. Here we present results showing that at 2.2km gridlength the MetUM is able to simulate supercell-like storms whereas at O(100 m) gridlength it is able to simulate realistic-looking supercells with tornado-like vortices. This opens up the opportunity for using such simulations to highlight areas of enhanced tornado risk ahead of time.

引用

页码：453 / 461

页数：9

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