Results 11 to 20 of about 67,550 (243)
Airport low-level wind shear lidar observation at beijing capital international airport
EPJ Web of Conferences, 2018 Ocean University of China lidar team operated a pulse coherent Doppler lidar (PCDL) for the low level wind shear monitoring at the Beijing Capital International Airport (BCIA) in 2015. The experiment configuration, observation modes is presented.
Zhang Hongwei +4 more
doaj +2 more sources
Impacts of the low-level jet's negative wind shear on the wind turbine [PDF]
Wind 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 +2 more sources
Atmosphere, 2020 Doppler wind lidar has played an important role in alerting low-level wind shear (LLW). However, these high-resolution observations are underused in the model-based analysis and forecasting of LLW.
Lanqian Li +6 more
doaj +2 more sources
Meteorological Applications, 2020 In summer, Hong Kong is affected by tropical cyclones moving northwestwards over the northern part of the South China Sea. They may bring strong southeasterly airflow to the territory.
Qiusheng Li, Pak Wai Chan
exaly +2 more sources
Recognition of partial scanning low-level wind shear based on support vector machine
Advances in Mechanical Engineering, 2018 A majority of air crash is caused by low-level wind shear. That can affect the direction and velocity of the aircrafts. So, it is very necessary to recognize the low-level wind shear in a short time to make the early warning.
Yuechao Ma, Sining Li, Wei Lu
doaj +2 more sources
How Wind Shear Affects Trade‐wind Cumulus Convection
Journal 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.
Kevin C Helfer, Stephan De Roode
exaly +2 more sources
The WRF Model Forecast-Derived Low-Level Wind Shear Climatology over the United States Great Plains
Energies, 2010 For wind resource assessment projects, it is common practice to use a power-law relationship (U(z) ~ zα) and a fixed shear exponent (α = 1=7) to extrapolate the observed wind speed from a low measurement level to high turbine hub-heights. However, recent
Sukanta Basu, Brandon Storm
doaj +2 more sources
Atmospheric 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
Study of Low-Level Wind Shear and Its Evolution Based on LIDAR and Aircraft Reports Identification
Gaoyuan 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
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 +3 more
doaj +1 more source