2-micron coherent Doppler lidar for space-based global wind field mapping

In November 2018, the lidar-based wind shear synchronous experiment was performed at Beijing Capital International Airport (BCIA). In this experiment, aiming at the measurement of the terrain-induced wind shear and the wind field around the runway, the glide path scanning mode, and the RHI strategy were conducted alternately. Radial velocity retrieved from the glide path scanning can obviously present the wakes caused by complex terrain (e.g., hills, tall trees, residential and terminal buildings). The Pulse Coherent Doppler Lidar (PCDL) warned the terrain-induced wind shear, which was verified by the pilot report. The wind field structure around the runway under the wake effect and the building shielding effect is also analyzed.

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Coherent Doppler Lidar Measurements of Wind Field Statistics

Boundary-Layer Meteorology ◽

10.1023/a:1000676021745 ◽

1998 ◽

Vol 86 (2) ◽

pp. 233-256 ◽

Cited By ~ 85

Author(s):

Rod Frehlich ◽

Stephen M. Hannon ◽

Sammy W. Henderson

Keyword(s):

Wind Field ◽

Doppler Lidar ◽

Coherent Doppler Lidar ◽

Lidar Measurements

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Numerical simulation and inversion validation of the real correlation random wind field generation for coherent Doppler LiDAR

Optik ◽

10.1016/j.ijleo.2014.06.035 ◽

2014 ◽

Vol 125 (18) ◽

pp. 5369-5373

Author(s):

Zhichao Bu ◽

Siying Chen ◽

Yinchao Zhang ◽

He Chen ◽

Xianying Ge ◽

...

Keyword(s):

Numerical Simulation ◽

Wind Field ◽

Doppler Lidar ◽

The Real ◽

Field Generation ◽

Coherent Doppler Lidar ◽

And Inversion

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Source Location and Suppression of Phase Induced Intensity Noise in Fiber-based Continuous-wave Coherent Doppler Lidar

IEEE Photonics Journal ◽

10.1109/jphot.2021.3078769 ◽

2021 ◽

pp. 1-1

Author(s):

Zheng Tang ◽

Mengfan Wang ◽

Wei Fei ◽

Xiaoyuan Sun ◽

Benli Yu ◽

...

Keyword(s):

Continuous Wave ◽

Source Location ◽

Intensity Noise ◽

Doppler Lidar ◽

Coherent Doppler Lidar

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Characterization of turbulent wake of wind turbine by coherent Doppler lidar

10.1117/12.2069566 ◽

2014 ◽

Cited By ~ 3

Author(s):

Songhua Wu ◽

Jiaping Yin ◽

Bingyi Liu ◽

Jintao Liu ◽

Rongzhong Li ◽

...

Keyword(s):

Wind Turbine ◽

Turbulent Wake ◽

Doppler Lidar ◽

Coherent Doppler Lidar

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

Atmosphere ◽

10.3390/atmos12010050 ◽

2020 ◽

Vol 12 (1) ◽

pp. 50

Author(s):

Hongwei Zhang ◽

Xiaoying Liu ◽

Qichao Wang ◽

Jianjun Zhang ◽

Zhiqiang He ◽

...

Keyword(s):

Wind Shear ◽

Vertical Direction ◽

Small Scale ◽

Observation Data ◽

Doppler Lidar ◽

Low Level ◽

Glide Path ◽

Coherent Doppler Lidar ◽

Scanning Strategies ◽

Meteorological Phenomenon

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 out the long term particular researches on the low-level wind shear identification and regional wind shear inducement search at Beijing Capital International Airport (BCIA) from 2015 to 2020 by operating several pulsed coherent Doppler lidar (PCDL) systems. On account of the improved glide path scanning strategy and virtual multiple wind anemometers based on the rang height indicator (RHI) modes, the small-scale meteorological phenomenon along the glide path and/or runway center line direction can be captured. In this paper, the device configuration, scanning strategies, and results of the observation data are proposed. The algorithms to identify the low-level wind shear based on the reconstructed headwind profiles data have been tested and proved based on the lidar data obtained from December 2018 to January 2019. High spatial resolution observation data at vertical direction are utilized to study the regional wind shear inducement at the 36L end of BCIA under strong northwest wind conditions.

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