Results 31 to 40 of about 615 (185)

Mesoscale analysis of a downburst process in Yichang three gorges dam area on 29 July 2017

暴雨灾害, 2023
Based on conventional observation data, regional station observation data, EC reanalysis data, FY-2G satellite data, and radar data, a downburst in Yichang on 29 July 2017 was analyzed.
Yu XIA, Fang LI, Miao TANG, Dan YE
doaj   +1 more source

Analysis of early warning of extreme downbursts induced by two supercell storms in the border area between Hebei and Henan Provinces

暴雨灾害, 2022
A severe convective weather event that was caused by multiple supercell storms occurred in the border area between the Hebei and Henan provinces at 16-22 Beijing Time of 31 July 2021.
Yitong WANG, Xiuming WANG, Xiaoding YU
doaj   +1 more source

Study on Wind-Induced Response of Transmission Tower-Line System under Downburst Wind

Buildings, 2022
Downburst is the main source of extreme wind speed in non-typhoon areas, which has caused a large amount of transmission line damage all over the world.
Zhiyuan Fang, Zhisong Wang, Renyu Zhu, Hanjie Huang   +3 more
doaj   +1 more source

Oklahoma Downbursts and Their Asymmetry

Journal of Climate and Applied Meteorology, 1987
Abstract Doppler radar data collected each spring in 1979–1984 with the two Doppler radars operated by the National Severe Storms Laboratory (NSSL) are used to investigate the asymmetry of low-altitude divergent outflows of convective storm downbursts in central Oklahoma.
Michael D. Eilts, Richard J. Doviak
openaire   +2 more sources

Analysis of supercell structure evolution and environmental characteristics of downburst in Guigang City of Guangxi On May 20, 2020

暴雨灾害, 2022
Based on the conventional meteorological observation data, Doppler radar data and NCEP reanalysis data, we have conducted an analysis of the structural evolution and environmental characteristics of the downburst in Guigang on 20 May 2020, which was ...
Hong LIANG, Shengfan WANG, Yijin LIANG, Jinfeng MENG, Mengsong Nong, Yongxiu SU   +5 more
doaj   +1 more source

Generation of downburst outflow in a traditional wind tunnel using multi-blade flow control device

Advances in Wind Engineering
The thunderstorm downbursts impose a great threat to civil engineering structures and the experimentation for such nonsynoptic winds plays a significant role in the characterization and quantification of relevant aerodynamic loading.
Jianming Hao, Yu Feng, Bo Su, Jiawu Li, Teng Wu   +4 more
doaj   +1 more source

A Random Forest Method to Forecast Downbursts Based on Dual-Polarization Radar Signatures

Remote Sensing, 2019
The United States Air Force’s 45th Weather Squadron provides wind warnings, including those for downbursts, at the Cape Canaveral Air Force Station and Kennedy Space Center (CCAFS/KSC).
Bruno L. Medina, Lawrence D. Carey, Corey G. Amiot, Retha M. Mecikalski, William P. Roeder, Todd M. McNamara, Richard J. Blakeslee   +6 more
doaj   +1 more source

Experimental Investigation of the Near-Surface Flow Dynamics in Downburst-like Impinging Jets Immersed in ABL-like Winds

Atmosphere, 2022
Downburst winds are strong downdrafts of cold air that embed into the atmospheric boundary layer (ABL) and produce intense horizontal outflow upon impingement on the ground.
Federico Canepa, Massimiliano Burlando, Horia Hangan, Djordje Romanic   +3 more
doaj   +1 more source

Experimental Study of Downburst Wind Flow over a Typical Three-Dimensional Hill

Applied Sciences, 2022
To achieve a comprehensive understanding of a three-dimensional (3D) wind field and the speed-up phenomenon in a downburst wind flow over a 3D hilly terrain, a succession of laboratory tests utilizing 12 hill models with cosine-squared cross-section was ...
Yong Chen, Yuhan Li, Jianfeng Yao, Guohui Shen, Wenjuan Lou, Haiwei Xu, Yong Guo   +6 more
doaj   +1 more source

Pulsed wall jet simulation of a stationary thunderstorm downburst, Part A: Physical structure and flow field characterization

, 2005
A pulsed wall jet has been used to simulate the gust front of a thunderstorm downburst. Flow visualization, wind speed and surface pressure measurements were obtained.
Letchford, C. W., James, DL, Mason, MS, Letchford, CW, Mason, M. S., James, D. L.   +5 more
core   +2 more sources