Results 11 to 20 of about 6,037 (261)

Application of low-altitude wind shear recognition algorithm and laser wind radar in aviation meteorological services

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, Ma Xiaoling, Li Qionghua, Lu Yan   +3 more
doaj   +1 more source

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

Algorithms, 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

Low Level Jet Wind Shear in the Sahel [PDF]

International Journal of Engineering Research in Africa, 2013
In the Sahel, a vertical wind shear appears in the dry and in the wet seasons. In Niamey, Niger, during the dry season, the period of strong shears is clearly linked to the Nocturnal Low Level Jet (LLJ) since it occurs in a narrow time period around 06H00 UTC at 60% of the cases reach shears which require an alert to the pilots (higher than 4 ms-1 per ...
Madougou, Saïdou, Saïd, Frédérique, Campistron, Bernard, Kebe, Cheikh Fadel   +3 more
openaire   +2 more sources

Historical analysis (2001–2019) of low‐level wind shear at the Hong Kong International Airport

Meteorological Applications, 2022
This paper analyses over 10,000 quality‐controlled pilot reports of low‐level wind shear (‘wind shear’) at the Hong Kong International Airport (HKIA; ICAO code: VHHH) between 2001 and 2019.
Kai‐Kwong Hon, Pak‐wai Chan
doaj   +1 more source

Low-Level Wind Shear Identification along the Glide Path at BCIA by the Pulsed Coherent Doppler Lidar

Atmosphere, 2020
Low-level wind shear is usually to be a rapidly changing meteorological phenomenon that cannot be ignored in aviation security service by affecting the air speed of landing and take-off aircrafts. The lidar team in Ocean University of China (OUC) carried
Hongwei Zhang, Xiaoying Liu, Qichao Wang, Jianjun Zhang, Zhiqiang He, Xi Zhang, Rongzhong Li, Kailin Zhang, Junwu Tang, Songhua Wu   +9 more
doaj   +1 more source

Missed Approach, a Safety-Critical Go-Around Procedure in Aviation: Prediction Based on Machine Learning-Ensemble Imbalance Learning

Advances in Meteorology, 2023
The final approach phase of an aircraft accounts for nearly half of all aviation incidents worldwide due to low-level wind shear, heavy downpours, runway excursions, and unsteady approaches.
Afaq Khattak, Pak-Wai Chan, Feng Chen, Haorong Peng, Caroline Mongina Matara   +4 more
doaj   +1 more source

Low Level Turbulence Detection For Airports

International Journal of Aviation, Aeronautics, and Aerospace, 2019
—— Low level wind shear and turbulence present a serious safety risk to aircraft during the approach, landing and take-off phases. Despite many advances in on-board and ground based warning systems. Wind shear remains a formidable force that coupled with
Anthony O' Connor, Derek Kearney
doaj   +1 more source

Wind Shear of Low-Level Jets and Their Influence on Manned and Unmanned Fixed-Wing Aircraft during Landing Approach

Atmosphere, 2021
Wind shear at low altitudes represents a potential hazard to landing aircraft. Based on two wind lidar data sets of one year, the occurrence of low-level jets (LLJs), the vertical wind shear and the rotation of the wind direction were analysed. The lidar
Lutz Bretschneider, Rudolf Hankers, Shanna Schönhals, Jens-Michael Heimann, Astrid Lampert   +4 more
doaj   +1 more source

Evaluating the Effect of Turbulence on Aircraft During Landing and Take-Off Phases

International Journal of Aviation, Aeronautics, and Aerospace, 2018
—— Low level wind shear and turbulence present a serious safety risk to aircraft during the approach, landing and take-off phases. Low level wind shear has been identified as one of the primary factors for aircraft go-arounds and aborted landings. During
Anthony O' Connor, Derek Kearney
doaj   +1 more source

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

EPJ 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, Zhang Xinyu, Liu Xiaoying, Sun Can, Zhang Kaijun, Chen Lijing, Fu Longyan, Liu Bingyi, Liu Jintao, Wu Songhua   +9 more
doaj   +1 more source