Results 41 to 50 of about 1,271 (165)

Applications of vortex gas models to tornadogenesis and maintenance [PDF]

open access: yes, 2017
Processes related to the production of vorticity in the forward and rear flank downdrafts and their interaction with the boundary layer are thought to play a role in tornadogenesis.
Bělík, Pavel   +4 more
core   +3 more sources

Comparative analysis of damage surveys and observations with two different types of wind disaster

open access: yes暴雨灾害, 2020
Damage survey, conventional observations and Doppler weather radar data are used to analyze the tornado occurred on 8 June 2018 at Nanhai District in Foshan City and microbursts occurred on 18 August 2016 at Leizhou County in Zhangjiang City.
Jiangling ZHI   +3 more
doaj   +1 more source

On the forcing mechanisms of mesocyclones in the eastern Weddell Sea region, Antarctica: Process studies using a mesoscale numerical model

open access: yesMeteorologische Zeitschrift, 2001
Development mechanisms of Antarctic mesocyclones in the eastern Weddell Sea area are examined by means of simulations with a mesoscale model using different idealized initial conditions.
Thomas Klein, Günther Heinemann
doaj   +1 more source

The College Park, Maryland, Tornado of 24 September 2001

open access: yesGeosciences, 2019
The 24 September 2001 College Park, Maryland, tornado was a long-track and strong tornado that passed within a close range of two Doppler radars. It was the third in a series of three tornadoes associated with a supercell storm that developed in Stafford
Kenneth L. Pryor   +2 more
doaj   +1 more source

Mitigation of Wind Turbine Clutter With Digital Phased Array Radar

open access: yesIEEE Access, 2023
Wind turbine clutter (WTC) contamination affects polarimetric meteorological observations and automatic high-impact weather detection algorithms in several ways, such as, misidentification of precipitation echoes, false mesocyclone detections, and ...
David Schvartzman
doaj   +1 more source

Impact of the Streamwise Vorticity Current on Low‐Level Mesocyclone Development in a Simulated Supercell

open access: yesGeophysical Research Letters, 2023
Results from a large eddy simulation of a tornadic supercell developing in a horizontally homogeneous environment are presented which clearly illustrate a connection between low‐level mesoyclone development and the development of a streamwise vorticity ...
Catherine A. Finley   +3 more
doaj   +1 more source

Analysis of the Three-Dimensional Structure of the Misocyclones Generating Waterspouts Observed by Phased Array Weather Radar: Case Study on 15 May 2017 in Okinawa Prefecture, Japan

open access: yesRemote Sensing, 2022
Tornadoes are one of the most severe meteorological phenomena on the earth and their high winds cause serious damage to society. It is well known that vortices (mesocyclone or misocyclone, depending on their scale) in convective clouds contribute to ...
Ryusho Imai, Nobuhiro Takahashi
doaj   +1 more source

A Reassessment of the Percentage of Tornadic Mesocyclones

open access: yesWeather and Forecasting, 2005
Abstract A large set of data collected by numerous Weather Surveillance Radar-1988 Doppler (WSR-88D) units around the United States was analyzed to reassess the percentage of tornadic mesocyclones. Out of the 5322 individual mesocyclone detections that satisfied the relatively stringent WSR-88D Mesocyclone Detection Algorithm objective ...
Robert J. Trapp   +2 more
openaire   +1 more source

Estimating dispersion from a tornado vortex and mesocyclone [PDF]

open access: yes, 1996
Atmospheric dispersion modeling is required to ensure that a postulated breach in radionuclide storage containers at the Savannah River Site (SRS) from a tornado strike of Fujita-scale intensity F2 or higher will not result in an unacceptable dose to individuals. Fujita-scale tornado descriptions are included in Appendix A of this report.
Weber, A. H., Hunter, C. H.
openaire   +2 more sources

Analysis of the Cause and Radar Characteristics of a Rare Autumn Strong Tornado Process Occurred in Northern Jiangsu Province

open access: yesAdvances in Meteorology, Volume 2026, Issue 1, 2026.
On September 19, 2023, a rare autumn tornado outbreak, consisting of three successive tornadoes (including one EF3), occurred in northern Jiangsu, China, causing significant damage. This study presents a comprehensive analysis of this event using multisource data, including Doppler radar, ERA5 reanalysis, and surface observations.
Cao Shuya   +5 more
wiley   +1 more source

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