Results 71 to 80 of about 948 (180)

A refined empirical model of steady-state downburst based on high-resolution wind speed data obtained from wind tunnel tests

Advances in Wind Engineering
A slice of research pertinent to the analytical or empirical models of downburst winds was available, but the current validation was usually based on sampled wind velocities at several typical positions in the experimental measurements rather than the ...
Bowen Yan, Ying Peng, Xu Cheng, Chenyan Ma, Yuji Tian, Baifeng Ji, Zhitao Yan   +6 more
doaj   +1 more source

A study of the 23 October 2022 southern England damaging MCS

Weather, Volume 80, Issue 10, Page 324-334, October 2025.
During the afternoon of 23 October 2022, a mesoscale convective system (MCS) developed and intensified over the English Channel and tracked north‐northeastward into southern England, producing widespread damaging winds and at least three moderate to strong tornadoes in Hampshire.
Kenneth Pryor, David L. A. Flack, David Smart, Sarah Horton   +3 more
wiley   +1 more source

Evaluation of Monin‐Obukhov Similarity Theory Wind Profiles in Convective Storm Environments and Cold Pools at the ARM Southern Great Plains Atmospheric Observatory

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 18, 28 September 2025.
Abstract Monin‐Obukhov similarity theory (MOST) is widely used in numerical weather prediction to model surface fluxes of momentum, heat, and water vapor. However, MOST is based on assumptions of steady state and horizontally homogeneous turbulence that can lead to prediction errors in and around convective storms.
Jesse Castillo, Ian N. Williams
wiley   +1 more source

Sensitivity of inflow turbulence uncertainty on wind pressure on high‐rise buildings using large eddy simulations

Computer-Aided Civil and Infrastructure Engineering, Volume 40, Issue 22, Page 3430-3450, 9 September 2025.
Abstract Large eddy simulations (LES) can aid the prediction of wind loading on buildings, provided that representative inflow turbulence properties are prescribed. This study conducts LES to assess the sensitivity of the mean, root mean square (rms) fluctuation, and peak pressure coefficients (Cp) on building surfaces to the uncertainties in the ...
L. W. Chew, A. F. Melaku, M. F. Ciarlatani, C. Gorlé   +3 more
wiley   +1 more source

Observations of a frontal–trough merger over a wildfire, Queensland, Australia

Quarterly Journal of the Royal Meteorological Society, Volume 151, Issue 771, July 2025 Part B.
Observations are presented of the meteorology of a frontal–trough merger in subtropical Australia which impacted a wildfire. An elevated nocturnal mixed layer above approx. 2500 m with increasing moisture with height was identified as the source of instability that resulted in the formation of elevated storms along a 300‐km frontal–trough boundary ...
Hamish McGowan, Adrien Guyot, Viola Seifried, Joshua Soderholm   +3 more
wiley   +1 more source

Added Value of Environmental Variables for Satellite Precipitation Retrieval: A Temporal Coevolution Perspective and a Machine Learning Integration Assessment

Geophysical Research Letters, Volume 52, Issue 11, 16 June 2025.
Abstract Satellite precipitation retrieval is inherently an underdetermined inverse problem where additional physical constraints could substantially enhance accuracy. While previous studies have explored static (pixel‐based/spatial‐context‐based) environmental variables at discrete satellite observation times, their temporal dynamic information ...
Runze Li, Clement Guilloteau, Efi Foufoula‐Georgiou   +2 more
wiley   +1 more source

The influence of thunderstorm downbursts on wind turbine design

, 2012
The International Electrotechnical Commission (IEC) standard 61400-1 for the design of wind turbines does not explicitly address site-specific conditions associated with anomalous atmospheric events or conditions.
Nguyen, Hieu Huy, 1980-
core  

Research on flow field characteristics of moving downburstsand dynamic response of wind turbines

Kongqi donglixue xuebao
The moving downburst, influenced by the atmospheric boundary layer wind, results in a constantly shifting jet center, causing significant changes in the wind field structure and radial velocity characteristics compared to stationary downbursts.
Yan Wang, Yan Wang, Xueya Yang, Long An, Yongfen Chai   +4 more
doaj   +1 more source

Machine Learning Indicates Stronger Future Thunderstorm Downbursts Affecting Southeast Australian Airports [PDF]

Thunderstorms downbursts can be hazardous during aircraft landing and take-off. A warming climate increases low- to mid-level troposphere water vapor, typically transported from high sea-surface temperature regions.
Milton Speer, Shuang Wang, Lance Leslie, Speer, M, Wang, S, Leslie, L   +5 more
core   +1 more source

Numerical Simulation of Downbursts and Comparison with Full Scale Data

, 2020
: The macro-flow dynamics and scale dependency of impinging jets with applications to downbursts is numerically investigated. Due to the unstable separationreattachment of the boundary layer the flow is Reynolds number (scale) dependent.
H Hangan, J Kim
core