Results 11 to 20 of about 1,955 (191)

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

Convective environments leading to microburst, macroburst and downburst events across the United States

open access: yesWeather and Climate Extremes, 2022
Downbursts are strong downdrafts of negatively buoyant air associated with convective storms and are capable of producing severe near-surface winds. Microbursts and macrobursts are subcategories of downbursts with the horizontal extent of damaging winds ...
Djordje Romanic   +2 more
doaj   +1 more source

Numerical simulation on load characteristics of transmission tower under downburst and wind-rain conditions

open access: yesZhejiang dianli, 2023
To analyze the response characteristics and failure modes of transmission towers subjected to the combined effects of downbursts and rainstorms, a numerical simulation based on CFD (computational fluid dynamics) is used to investigate the distribution ...
WANG Shaohua   +5 more
doaj   +1 more source

Dual Polarization Radar Characteristics of Severe Downburst Occurred in Weak Vertical Wind Shear

open access: yes应用气象学报, 2023
Based on S-band Dual polarization doppler radar data and conventional observations, characteristics of 3 severe downbursts occurred under the background of weak vertical wind shear are analyzed, and their possible physical formation mechanisms are ...
Guo Feiyan   +3 more
doaj   +1 more source

Downburst-Induced Vibration Coefficient of Long-Span Roof Structures

open access: yesBuildings, 2022
Long-span roof structures are vulnerable to being damaged by downbursts due to the sensitivity of such structures to wind loads. However, there is still no simple and practical method for the downburst-resistant design of such structures to date ...
Chaohao Chen   +3 more
doaj   +1 more source

Predicting small-scale, short-lived downbursts : case study with the NWP limited-area ALARO model for the Pukkelpop thunderstorm [PDF]

open access: yes, 2015
The authors consider a thunderstorm event in 2011 during a music festival in Belgium that produced a short-lived downburst of a diameter of less than 100 m.
De Meutter, Pieter   +6 more
core   +2 more sources

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

Recent studies on downbursts

open access: yesWind Engineers, JAWE, 1985
Downbursts can be a significant hazard to aviation safety as well as to agricultural activities, structures and buildings on the ground. Major damages on the surface, airline incidents in the past, worns on the mechanism of the downburst occurrence and recent efforts to detect eho downburst are reviewed.
Nobutaka MONJI, Yukio OMOTO
openaire   +2 more sources

Automated Recognition of Macro Downburst Using Doppler Weather Radar

open access: yesAtmosphere, 2022
In light of the macro downburst’s ground divergent flow field characteristics and high reflectivity, this paper proposes an algorithm for identifying the downburst area using a Doppler weather radar low-level radial velocity and reflectivity factor ...
Xu Wang   +4 more
doaj   +1 more source

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