Nonhydrostatic Barotropic Instability: Applicability to Nonsupercell Tornadogenesis
Journal of the Atmospheric Sciences, 2001 Abstract This paper reports a barotropic instability analysis of nonhydrostatic columnar disturbances in a layer of homogeneous fluid over a flat bottom surface. The extended form of Hamilton's principle of least action is used to obtain the canonical form of Green–Naghdi equations for this model.
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The Role of Surface Drag in Supercell Tornadogenesis and Mesocyclogenesis: Studies Based on Idealized Numerical Simulations [PDF]
, 2017 Idealized numerical simulations of supercell thunderstorms have been employed for several decades to study tornadogenesis, providing valuable insights that have helped shape our current understanding of the process. Until the past several years, however,
Roberts, Brett
core
Exploring Tornadogenesis with High-Resolution Simulations Initialized with Real Data [PDF]
, 2012 Despite large advances in our understanding of tornadogenesis over the past fifty years, a comprehensive dynamical understanding of the processes behind tornado formation remains elusive.
Schenkman, Alexander Daniel
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Incorporation and Use of Earth Remote Sensing Imagery within the NOAA/NWS Damage Assessment Toolkit. [PDF]
Bull Am Meteorol Soc, 2020 Molthan AL +7 more
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Supercell Tornadogenesis: Recent Progress in Our State of Understanding
Bulletin of the American Meteorological SocietyAbstract Over the last decade, supercell simulations and observations with ever-increasing resolution have provided new insights into the vortex-scale processes of tornado formation. This article incorporates these and other recent findings into the existing three-step model by adding an additional fourth stage. The goal is to provide
Jannick Fischer +7 more
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Numerical Investigation Of Orographic Effects On Supercell Thunderstorms [PDF]
, 2014 Orographic effects on tornadic supercell development, propagation, and structure are investigated using the Cloud Model 1 with idealized bell-shaped mountains of various heights and geometries and a homogeneous fluid flow with a single sounding. In total,
Smith, Galen M.
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The mechanism of tornadogenesis from the perspective of vortex tubes
In this paper, we propose a new theory on tornadogenesis from the perspective of vortex tubes based on Kelvin-Helmholtz Theorems. When the pressure difference between the lowest pressure line from the wall cloud down to the ground and its surroundings is large enough, the increase of vorticity inside the squeezed vortex tube can reach the tornado level,
Yue, Peng +4 more
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Assessing the mesoscale variability and rapid tornadogenesis in the high-shear/low-CAPE, surging QLCS in Northern Alabama on 01 April 2023 [PDF]
On 01 April 2023, a severe QLCS impacted Northern Alabama during the PERiLS field campaign under High-Shear/Low-CAPE (HSLC) conditions, with CAPE below 1000 J/kg and 0-6 km wind shear exceeding 25 m/s.
Huggins, Joshua L.
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Geographic Analysis of Tornadogenesis from Landfalling and Nearby Tropical Cyclones in the State of Florida [PDF]
, 2013 Tropical cyclone (TC)-spawned tornadoes in Florida were analyzed to determine patterns of occurrence based on storm and geographic features. Tornadoes were determined to be associated with a landfalling or nearby TC if a tornado occurred within 800 km of
Roop, Charles Eugene
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Evaluating the Ability of Remote Sensing Observations to Identify Significantly Severe and Potentially Tornadic Storms. [PDF]
J Appl Meteorol Climatol, 2019 Sandmæl TN +5 more
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