Results 91 to 100 of about 3,224,693 (191)

Examination of Surface Wind Asymmetry in Tropical Cyclones over the Northwest Pacific Ocean Using SMAP Observations

Remote Sensing, 2019
Tropical cyclone (TC) surface wind asymmetry is investigated by using wind data acquired from an L-band passive microwave radiometer onboard the NASA Soil Moisture Active Passive (SMAP) satellite between 2015 and 2017 over the Northwest Pacific (NWP ...
Ziyao Sun, Biao Zhang, Jun A. Zhang, William Perrie   +3 more
doaj   +1 more source

Surface-Layer Wind Shear and Momentum Transport From Clear-Sky to Cloudy Weather Regimes Over Land. [PDF]

J Geophys Res Atmos, 2021
Koning AM, Nuijens L, Bosveld FC, Siebesma AP, van Dorp PA, Jonker HJJ.   +5 more
europepmc   +1 more source

Study on Characteristics and Numerical Simulation of a Convective Low-Level Wind Shear Event at Xining Airport

Atmosphere
Low-level wind shear (LLWS) is a critical issue in aviation meteorology, posing serious risks to flight safety—especially at plateau airports with high elevation and complex terrain. This study investigates a convective wind shear event at Xining Airport
Juan Gu, Yuting Qiu, Shan Zhang, Xinlin Yang, Shi Luo, Jiafeng Zheng   +5 more
doaj   +1 more source

Wind Shear Target Echo Modeling and Simulation [PDF]

, 2015
Wind shear is a dangerous atmospheric phenomenon in aviation. Wind shear is defined as a sudden change of speed or direction of the wind. In order to analyze the influence of wind shear on the efficiency of the airplane, this paper proposes a ...
Xiaoyang Liu, Chao Liu, Wanping Liu
core   +1 more source

Wind shear for large wind turbine generators at selected tall tower sites [PDF]

, 1984
The objective of the study described in this report is to examine the nature of wind shear profiles and their variability over the height of large horizontal-axis wind turbines and to provide information on wind shear relevant to the design and opertion ...
D.L. Elliott, Elliott, D. L.
core   +1 more source

Influence of Low‑Level Wind Shear on Flight Characteristics of Large Helicopters

Nanjing Hangkong Hangtian Daxue Xuebao
To analyze the influence of low-level wind shear on the flight characteristics of a large helicopter during takeoff， a wind shear model and a helicopter flight dynamics model coupled with wind interference are established.
YE Yi, CHEN Renliang, WEI Yuan
doaj   +1 more source

Effects of Inflow Shear on Wake Characteristics of Wind-Turbines over Flat Terrain

, 2020
The scope of the present study was to understand the wake characteristics of wind-turbines under various inflow shears. First, in order to verify the prediction accuracy of the in-house large-eddy simulation (LES) solver, called RIAM-COMPACT, based on a ...
Takanori Uchida, Uchida, Takanori, ウチダ, タカノリ, 内田, 孝紀   +3 more
core   +1 more source

Sporadic E-like Topside Layer Driven by Wind Shear in the Martian Ionosphere

The Astrophysical Journal
Ionospheric plasma density disturbances significantly affect radio wave propagation, impacting communication and planetary exploration. At Earth, sporadic E layers (Es) are commonly observed. They are characterized by thin, high-density plasma structures
Rong Tian, Chunhua Jiang, Christopher Michael Fowler, Beatriz Sánchez-Cano, Glyn Collinson, David J. Andrews, Wenjie Yin, Guobin Yang, Tongxin Liu, Chongzhe Lao, Yaogai Hu   +10 more
doaj   +1 more source

Impacts of the Low-Level Jet's Negative Wind Shear on the Wind Turbine

, 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, A. Ruiz-Columbi'e, M. Tutkun, L. Castillo   +3 more
semanticscholar   +1 more source

Modeling and implementation of wind shear data [PDF]

, 1987
The problems of implementing the JAWS wind shear data are discussed. The data sets are described from the view of utilizing them in an aircraft performance computer program.
Frost, Walter
core