Results 21 to 30 of about 17,805,085 (289)

Wind shear over the Nice Côte d'Azur airport: case studies [PDF]

Natural Hazards and Earth System Sciences, 2013
The Nice Côte d'Azur international airport is subject to horizontal low-level wind shears. Detecting and predicting these hazards is a major concern for aircraft security.
A. Boilley, J.-F. Mahfouf
doaj   +2 more sources

Two-Stage Low-Level Wind Field Evolution and Fine-Scale Wind Shear Structures at Xining Caojiapu Airport Based on Multi-Source Observations

Atmosphere
To examine the fine-scale structure and evolution of the low-level wind field at a plateau valley airport under different weather conditions, this study analyzes a two-stage wind field event at Xining Caojiapu Airport on 8 April 2022.
Ye Yin, Hantao Wang, Hui Zhang, Nanshan Zhao, Cuihua Chen, Chenghua Xie   +5 more
doaj   +2 more sources

Monitoring of Low-Level Wind Shear by Ground-based 3D Lidar for Increased Flight Safety, Protection of Human Lives and Health. [PDF]

Int J Environ Res Public Health, 2019
Low-level wind shear, i.e., sudden changes in wind speed and/or wind direction up to altitudes of 1600 ft (500 m) above-ground is a hazardous meteorological phenomenon in aviation.
Nechaj P, Gaál L, Bartok J, Vorobyeva O, Gera M, Kelemen M, Polishchuk V.   +6 more
europepmc   +2 more sources

Application of low-altitude wind shear recognition algorithm and laser wind radar in aviation meteorological services

Open Physics, 2023
The rapid development of the aviation industry has attracted great attention to aviation safety, and the identification and early warning of low-level wind shear have become crucial.
Xu Ting, Ma Xiaoling, Li Qionghua, Lu Yan   +3 more
doaj   +1 more source

Historical analysis (2001–2019) of low‐level wind shear at the Hong Kong International Airport

Meteorological Applications, 2022
This paper analyses over 10,000 quality‐controlled pilot reports of low‐level wind shear (‘wind shear’) at the Hong Kong International Airport (HKIA; ICAO code: VHHH) between 2001 and 2019.
Kai‐Kwong Hon, Pak‐wai Chan
doaj   +1 more source

Effects of negative shear on loads for a 15 MW offshore wind turbine during low-level jet events [PDF]

, 2023
Wind turbines are more often interacting with the negative shear region of a low-level jet due to increasing turbine sizes. However, the effects of negative shear on wind turbines are not sufficiently studied, particularly for offshore wind applications.
Ahmed, Fahim Masud, Bakhoday Paskyabi, Mostafa   +1 more
core   +1 more source

Dynamical age of solar wind turbulence in the outer heliosphere [PDF]

, 1998
In an evolving turbulent medium, a natural timescale can be defined in terms of the energy decay time. The time evolution may be complicated by other effects such as energy supply due to driving, and spatial inhomogeneity.
Matthaeus, William H., Oughton, Sean, William H. Matthaeus, Smith, Charles W., Charles W. Smith, Sean Oughton   +5 more
core   +1 more source

Missed Approach, a Safety-Critical Go-Around Procedure in Aviation: Prediction Based on Machine Learning-Ensemble Imbalance Learning

Advances in Meteorology, 2023
The final approach phase of an aircraft accounts for nearly half of all aviation incidents worldwide due to low-level wind shear, heavy downpours, runway excursions, and unsteady approaches.
Afaq Khattak, Pak-Wai Chan, Feng Chen, Haorong Peng, Caroline Mongina Matara   +4 more
doaj   +1 more source

Transport of cross helicity and radial evolution of alfvenicity in the solar wind [PDF]

, 2004
A transport theory including cross helicity, magnetohydrodynamic(MHD) turbulence, and driving by shear and pickup ions, is applied to the radial evolution of the solar wind.
Matthaeus, William H., Oughton, Sean, Minnie, J., Bieber, J.W., Parhi, S., Breech, Ben   +5 more
core   +2 more sources

Evaluating the Effect of Turbulence on Aircraft During Landing and Take-Off Phases

International Journal of Aviation, Aeronautics, and Aerospace, 2018
—— Low level wind shear and turbulence present a serious safety risk to aircraft during the approach, landing and take-off phases. Low level wind shear has been identified as one of the primary factors for aircraft go-arounds and aborted landings. During
Anthony O' Connor, Derek Kearney
doaj   +1 more source