Results 1 to 10 of about 6,037 (261)

Impacts of the low-level jet's negative wind shear on the wind turbine [PDF]

open access: yesWind Energy Science, 2017
Nocturnal low-level jets (LLJs) are defined as relative maxima in the vertical profile of the horizontal wind speed at the top of the stable boundary layer. Such peaks constitute major power resources for wind turbines.
W. Gutierrez   +4 more
doaj   +6 more sources

A Case Study of Low-level Wind Shear in Xining Airport [PDF]

open access: yesE3S Web of Conferences, 2019
Low-level wind shear is a hazardous phenomenon for aircraft, a low-level wind shear case of Xining airport selected from pilot reports is analysed in this paper.
Xu Ting, Niu Wei
doaj   +2 more sources

Overview of Low-Level Wind Shear Characteristics over Chinese Mainland [PDF]

open access: yesAtmosphere, 2021
The characteristics of low-level wind shear (LLWS) over the Chinese mainland were investigated using reports from pilots, air traffic controllers and the number of arriving/departing flights from 2016 to 2020.
Caiyan Lin   +5 more
doaj   +2 more sources

Performance of large-eddy simulations for capturing low-level wind shear at the Hong Kong International Airport for a whole wind-shear (spring) season

open access: yesMeteorologische Zeitschrift, 2023
The wind-shear reports from pilots from a particular springtime wind-shear season at the Hong Kong International Airport, namely, January to April 2021, are considered in order to study the performance of a meteorological model in large-eddy simulations ...
P.W. Chan, K.K. Lai, Q.S. Li
doaj   +2 more sources

Prediction of a Pilot’s Invisible Foe: The Severe Low-Level Wind Shear

open access: yesAtmosphere, 2022
Severe low-level wind shear (S-LLWS) in the vicinity of airport runways (25 knots or more) is a growing concern for the safety of civil aviation. By comprehending the causes of S-LLWS events, aviation safety can be enhanced.
Afaq Khattak   +3 more
doaj   +2 more sources

How Wind Shear Affects Trade‐wind Cumulus Convection

open access: yesJournal of Advances in Modeling Earth Systems, 2020
Motivated by an observed relationship between marine low cloud cover and surface wind speed, this study investigates how vertical wind shear affects trade‐wind cumulus convection, including shallow cumulus and congestus with tops below the freezing level.
K. C. Helfer   +3 more
doaj   +2 more sources

Wind speed and shear associated with low-level jets over Northern Germany

open access: yesMeteorologische Zeitschrift, 2014
Nearly two years of SODAR measurements in Hannover, Northern Germany have been analysed for the frequency of occurrence of low-level jets and their properties. Characteristic properties such as the height of the jet core above ground, maximum wind speed,
Stefan Emeis
doaj   +4 more sources

Observation of nocturnal low-level wind shear and particulate matter in urban Beijing using a Doppler wind lidar [PDF]

open access: yesAtmospheric and Oceanic Science Letters, 2017
A field experiment of nocturnal mountain wind and corresponding particulate matter (PM) evolution under weak synoptic forcing at five sites within urban Beijing was conducted using a moving Doppler wind lidar and a fixed tower.
Yong Chen   +6 more
doaj   +2 more sources

Low-level wind shear of wind field modeling and simulation

open access: yesInternational Journal of Wireless and Mobile Computing, 2022
Abstract Three wind shear wind field modeling methods has been introduced in this paper. By use of computer numerical simulation, the model can not only simulate the real wind shear of wind field, buy can also provide other useful physical quantities.
Zhang Ye, Jia Meng 0007
openaire   +1 more source

Study of Low-Level Wind Shear and Its Evolution Based on LIDAR and Aircraft Reports Identification

open access: yesGaoyuan qixiang, 2023
Low-level wind shear significantly impacts aviation safety and operational efficiency.Zhongchuan Airport, located in a mountainous inland region, experiences the influence of complex terrain and weather systems.Wind shear is frequently observed during ...
Jie DING   +10 more
doaj   +1 more source

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