Results 61 to 70 of about 10,050 (162)

Coherent Doppler lidar signal covariance including wind shear and wind turbulence [PDF]

Applied Optics, 1994
The performance of a coherent Doppler lidar is determined by the statistics of the coherent Doppler signal. The derivation and calculation of the covariance of the Doppler lidar signal for random atmospheric wind fields and wind shear are presented.
openaire   +2 more sources

Explainable Learning Framework for the Assessment and Prediction of Wind Shear-Induced Aviation Turbulence

Atmosphere
Wind shear-induced aviation turbulence (WSAT) remains a major safety concern during approach and takeoff phases at complex terrain airports. This study develops an interpretable Explainable Boosting Machine (EBM) framework to classify WSAT events at Hong
Afaq Khattak, Pak-wai Chan, Feng Chen, Adil A. M. Elhassan, Badr T. Alsulami   +4 more
doaj   +1 more source

Study on Vertical Extrapolation Model of Wind Speed in Inland Complex Wind Farms

Zhongguo dianli
According to the evaluation of onshore wind energy resources, the hub height of the wind turbine is greater than the height of the wind tower. The influences of atmospheric stability and surface roughness changes are ignored, and the wind shear index is ...
Rui HU, Shuzhou WU, Yonghua LI, Jiafei QIAO   +3 more
doaj   +1 more source

Analysis of Near-Surface Wind Shear Characteristics over Land in China

Atmosphere
Wind shear is one of the crucial parameters in wind resource assessment and also serves as a vital parameter and basis for determining wind turbines’ selection and hub height.
Ling Yuan, Fengzhi Yang, Xia Ruan, Feng Zou, Qi Luo   +4 more
doaj   +1 more source

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
Nechaj P, Gaál L, Bartok J, Vorobyeva O, Gera M, Kelemen M, Polishchuk V.   +6 more
europepmc   +1 more source

Wind shear enhances soil moisture influence on rapid thunderstorm growth. [PDF]

Nature
Taylor CM, Klein C, Barton EJ, Hahn S, Wagner W.   +4 more
europepmc   +1 more source

Soil moisture gradients strengthen mesoscale convective systems by increasing wind shear. [PDF]

Nat Geosci
Barton EJ, Klein C, Taylor CM, Marsham J, Parker DJ, Maybee B, Feng Z, Leung LR.   +7 more
europepmc   +1 more source

The Impact of Variable Wind Shear Coefficients on Risk Reduction of Wind Energy Projects. [PDF]

Int Sch Res Notices, 2016
Corscadden KW, Thomson A, Yoonesi B, McNutt J.   +3 more
europepmc   +1 more source

STRONG WIND AND VERTICAL WIND SHEAR ABOVE 30 km

, 1969
Abstract : Strong wind and vertical wind shear must be considered for design and operation of vehicles that will either operate in or penetrate the upper stratosphere and mesosphere. Global extremes of these atmosphere parameters are estimated in this report for altitudes above 30 km. For the Northern Hemisphere estimated 90, 95, and 99% winds, related
openaire   +2 more sources

SHEAR WIND CALCULATOR

MAUSAM, 1961
openaire   +1 more source