Results 21 to 30 of about 10,720 (262)

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   +1 more source

The Impacts of Wind Shear on Spatial Variation of the Meteorological Element Field in the Atmospheric Convective Boundary Layer Based on Large Eddy Simulation

open access: yesAtmosphere, 2022
As wind shear increases, the quasi-two-dimensional structure of flows becomes more significant in the convective boundary layer (CBL), indicating that wind shear plays an essential role in the variation of the field of atmospheric flow.
Hailiang Zhang   +3 more
doaj   +1 more source

Impact of Negative Geostrophic Wind Shear on Wind Farm Performance

open access: yesPRX Energy, 2022
Baroclinicity, which leads to height-dependent driving pressure gradients, occurs in various situations such as the flow transition between land and sea, and sloping terrain.
Anja Stieren   +3 more
doaj   +1 more source

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

Low-Level Wind Shear Pre-warning Algorithms Based on Scanning Doppler Lidar [PDF]

open access: yesEPJ Web of Conferences
Low-level wind shear significantly impacts aviation safety. Doppler lidar is one of the primary tools currently used for detecting low-level wind shear at numerous international airports.
Zhang Hongwei   +9 more
doaj   +1 more source

Wind shear for small thickness layers [PDF]

open access: yesConference on Aerospace Meteorology, 1966
Abstract Wind shear in the lowest 10,000 it of the atmosphere was investigated utilizing two or more cinetheodolites (Contraves cameras) tracking a smooth spherical 100-gm balloon. These data indicate that a simple power law relationship exists between 1) layer thickness and the magnitude of the vector shear, 2) layer thickness and the magnitude of the
Manuel Armendariz, Laurence J. Rider
openaire   +1 more source

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   +1 more source

An expert system for wind shear avoidance [PDF]

open access: yesEngineering Applications of Artificial Intelligence, 1989
Abstract A study of intelligent guidance and control concepts for protecting against the adverse effects of wind shear during aircraft takeoffs and landings is being conducted, with current emphasis on developing an expert system for wind shear avoidance. Principal objectives are to develop methods for assessing the likelihood of wind shear encounter
Robert F. Stengel, D. Alexander Stratton
openaire   +1 more source

Tidal wind shear observed by meteor radar and comparison with sporadic E occurrence rates based on GPS radio occultation observations [PDF]

open access: yesAdvances in Radio Science, 2019
We analyze tidal (diurnal, semidiurnal, terdiurnal, quarterdiurnal) phases and related wind shear in the mesosphere/lower thermosphere as observed by meteor radar over Collm (51.3∘ N, 13.0∘ E).
C. Jacobi, C. Arras
doaj   +1 more source

Study of the Algorithm for Wind Shear Detection with Lidar Based on Shear Intensity Factor

open access: yesAlgorithms, 2022
Low-level wind shear is a vital weather process affecting aircraft safety while taking off and landing and is known as the “aircraft killer” in the aviation industry. As a result, effective monitoring and warning are required.
Shijun Zhao, Yulong Shan
doaj   +1 more source

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