Results 11 to 20 of about 615 (185)

Characteristic Analysis of the Downburst in Greely, Colorado on 30 July 2017 Using WPEA Method and X-Band Radar Observations

open access: yesAtmosphere, 2018
As a manifestation of low-altitude wind shear, a downburst is a localized, strong downdraft that can lead to disastrous wind on the ground surface.
Hao Wang   +4 more
doaj   +2 more sources

Assessing Downburst Kinematics Using Video Footage Analysis

open access: yesAtmosphere
Measurements of downburst outflows using standard meteorological instruments (e.g., anemometers) are rare due to their transient and localized nature. However, video recordings of such events are becoming more frequent.
Djordje Romanic   +1 more
doaj   +2 more sources

Semiempirical Models of Speedup Effect for Downburst Wind Field over 3-D Hills

open access: yesAtmosphere, 2023
Downbursts occur frequently in mountainous regions, such as the southwest of China, and causing extensive damage to engineering structures. While some researchers have developed semiempirical models for the speedup effect, most are based on the wind ...
Bowen Yan, Yini He, Chenyan Ma, Xu Cheng
doaj   +2 more sources

Analytical model of high-voltage transmission line subjected to the downburst wind with rainfall

open access: yesAdvances in Mechanical Engineering, 2015
There have been many reports recently on unanticipated galloping and collapse accidents of tower-line systems due to downburst wind with rainfall. Although wet downburst is characterized by high-velocity wind with rainfall, very little research work is ...
Chao Zhou, Yibing Liu
doaj   +2 more sources

The Predictability of the Southern England 23 October 2022 Severe Downbursts

open access: yesAtmospheric Science Letters
Accurate prediction of damaging straight‐line wind events from convective storms relies heavily on storm morphology and nowcasting. Utilising the Microburst Wind Potential Index in ensemble forecasts we examine the predictability of its different ...
David L. A. Flack, Kenneth L. Pryor
doaj   +2 more sources

Mechanisms of Projected Changes in Thunderstorm Downburst Environments Across the United States

open access: yesGeophysical Research Letters
Responses of downdraft convective available potential energy (DCAPE) to global warming were investigated using the Community Earth System Model (CESM2) under a high‐emission scenario through the year 2100.
Ian N. Williams, Gwendolyn N. Fieweger
doaj   +2 more sources

Downburst-like experimental impinging jet measurements at the WindEEE Dome. [PDF]

open access: yesSci Data, 2022
This paper describes the dataset of measurements collected and published in the context of the comprehensive experimental campaign on downburst-like outflows that was performed at the WindEEE Dome at Western University, Canada.
Canepa F   +4 more
europepmc   +2 more sources

Examination of different wall jet and impinging jet concepts to produce large-scale downburst outflow

open access: yesFrontiers in Built Environment, 2022
Thunderstorm downburst winds are a major cause of severe damage to buildings and other infrastructure. The initiative of the NSF-NHERI Wall of Wind (WOW) Experimental Facility to design and develop a downburst simulator was established to open new ...
Alvaro Danilo Mejia   +7 more
doaj   +1 more source

Investigating the impact of atmospheric stability on thunderstorm outflow winds and turbulence [PDF]

open access: yesWind Energy Science, 2018
Downburst events initialized at various hours during the evening transition (ET) period are simulated to determine the effects of ambient stability on the outflow of downburst winds.
P. Hawbecker, S. Basu, L. Manuel
doaj   +1 more source

Preliminary study on the causes of a downburst event in Tianjin in the summer of 2017

open access: yes暴雨灾害, 2022
A severe thunderstorm gale event with several short-term rainfall,hail and downburst occurred in the southwest of Tianjin on 9 July 2017, during which two downbursts attacked successively Duliu Town,Jinghai District,Tianjin.
Yanchun WANG   +4 more
doaj   +1 more source

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