Detection Performance Analysis of All-Fiber Coherent Wind Lidar Under Different Weather Types

Qi, 范琪 Fan; Keyun, 朱克云 Zhu; Jiafeng, 郑佳锋 Zheng; Zhang, Jie; Dingfu, 周鼎富 Zhou; Fugui, 张福贵 Zhang

doi:10.3788/cjl201744.0210003

Cited by 3 publications

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“…The duration of the DBS mode is 3 s. Previous research has extensively verified the reliability and accuracy of wind profiles obtained through the DBS technique using Doppler LiDAR [39][40][41]. Notably, Fan et al (2017) [19] conducted an evaluation of the same DWL used in this study by comparing it with radiosonde observations. Their validation concluded that the mean error, standard deviation, and correlation coefficient of horizontal wind speeds between the two instruments are <0.5 m/s, 0.405 m/s, and 0.963, respectively.…”

Section: Observation Site Instrument and Measurementmentioning

confidence: 99%

“…With the advancement of photoelectric technology and components, the Doppler wind LiDAR (DWL) has rapidly developed and gradually emerged as one of the more sophisticated forms of wind observation equipment [18,19]. Due to its good accuracy and high spatiotemporal resolution, the DWL has been widely utilized by numerous scientists for detecting wind fields in the lower troposphere [20][21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

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Investigating Wind Characteristics and Temporal Variations in the Lower Troposphere over the Northeastern Qinghai–Tibet Plateau Using a Doppler LiDAR

Zheng,

Liu,

Peng

et al. 2024

Remote Sensing

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Knowledge of wind field characteristics and variation principles in complex topographical regions is of great importance for the development of numerical prediction models, aviation safety support, and wind energy utilization. However, there has been limited research focused on the lower-tropospheric wind fields in the Qinghai-Tibet Plateau. This paper aims to study the wind characteristics, vertical distributions, and temporal variations in the northeast of the plateau by analyzing a four-year continuous dataset collected from a Doppler wind LiDAR deployed in Xining, Qinghai Province of China. The results indicate that the prevailing horizontal wind direction in the low levels is primarily influenced by the mountain-valley wind circulation. However, as the altitude increases, the prevailing winds are predominantly affected by the westerlies. From a diurnal perspective, noticeable transition processes between up-valley and down-valley winds can be observed. The west-northwest wind (down-valley wind) dominates from late night to morning, while the east-southeast wind (up-valley wind) prevails from afternoon to early evening. The vertical winds in the low levels exhibit a downward motion during the daytime and an upward motion during the nighttime. In this plateau valley, the wind shear exponent is found to be highest in spring and lowest in winter, and it is generally lower during the daytime compared to the nighttime.

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Section: Observation Site Instrument and Measurementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigating Wind Characteristics and Temporal Variations in the Lower Troposphere over the Northeastern Qinghai–Tibet Plateau Using a Doppler LiDAR

Zheng,

Liu,

Peng

et al. 2024

Remote Sensing

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Research Based on Domestic 3D Laser Wind Measurement Radar

曹

2024

CCRL

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激光测风雷达分析高原机场三类典型风切变特征

华

2024

Advances in Sciences

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为更好保障高原机场风切变天气下的飞行安全。本文利用航空器报告数据进行统计，并利用激光雷达资料对西宁机场三类典型风切变案例的结构和演变进行分析。结果表明：西宁机场的风切变主要集中于4-7月，傍晚前后发生最多，对流型风切变占比高达61%。对流型前期低层风速突增，在周边形成风向辐合和多个小尺度涡旋，雷暴内部的强下沉气流在跑道附近形成发散的微下击暴流结构，后期与环境风形成风向切变。冷锋型有明显的风向切变，随冷锋自东向西影响机场，结构向后倾斜且向上抬升。动量下传型高层偏西大风向下传播时形成风向切变，呈反弓形结构，西侧有小涡旋和辐合切变，在跑道区域出现发散结构和辐散气流。航空器报告也很好的验证了三类典型的风切变过程。

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Detection Performance Analysis of All-Fiber Coherent Wind Lidar Under Different Weather Types

Cited by 3 publications

References 0 publications

Investigating Wind Characteristics and Temporal Variations in the Lower Troposphere over the Northeastern Qinghai–Tibet Plateau Using a Doppler LiDAR

Investigating Wind Characteristics and Temporal Variations in the Lower Troposphere over the Northeastern Qinghai–Tibet Plateau Using a Doppler LiDAR

Research Based on Domestic 3D Laser Wind Measurement Radar

激光测风雷达分析高原机场三类典型风切变特征

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