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Volume 22
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10.3390/s22093412
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Article

Simultaneous Extraction of Planetary Boundary-Layer Height and Aerosol Optical Properties from Coherent Doppler Wind Lidar

by
Yehui Chen
1,2,3,
Xiaomei Jin
1,3,
Ningquan Weng
1,3,*,
Wenyue Zhu
1,3,
Qing Liu
1,3 and
Jie Chen
1,2,3
1
Key Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
2
Science Island Branch of Graduate School, University of Science and Technology of China, Hefei 230026, China
3
Advanced Laser Technology Laboratory of Anhui Province, Hefei 230037, China
*
Author to whom correspondence should be addressed.
Sensors 2022, 22(9), 3412; https://doi.org/10.3390/s22093412
Submission received: 15 March 2022 / Revised: 22 April 2022 / Accepted: 28 April 2022 / Published: 29 April 2022
(This article belongs to the Special Issue LiDAR Sensor Hardware, Algorithm Development and Its Application)
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Abstract

Planetary boundary-layer height is an important physical quantity for weather forecasting models and atmosphere environment assessment. A method of simultaneously extracting the surface-layer height (SLH), mixed-layer height (MLH), and aerosol optical properties, which include aerosol extinction coefficient (AEC) and aerosol optical depth (AOD), based on the signal-to-noise ratio (SNR) of the same coherent Doppler wind lidar (CDWL) is proposed. The method employs wavelet covariance transform to locate the SLH and MLH using the local maximum positions and an automatic algorithm of dilation operation. AEC and AOD are determined by the fitting curve using the SNR equation. Furthermore, the method demonstrates the influential mechanism of optical properties on the SLH and MLH. MLH is linearly correlated with AEC and AOD because of solar heating increasing. The results were verified by the data of an ocean island site in China.
Keywords: planetary boundary layer (PBL); aerosol extinction coefficient (AEC); aerosol optical depth (AOD); wavelet covariance transform (WCT); dilation operation planetary boundary layer (PBL); aerosol extinction coefficient (AEC); aerosol optical depth (AOD); wavelet covariance transform (WCT); dilation operation

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MDPI and ACS Style

Chen, Y.; Jin, X.; Weng, N.; Zhu, W.; Liu, Q.; Chen, J. Simultaneous Extraction of Planetary Boundary-Layer Height and Aerosol Optical Properties from Coherent Doppler Wind Lidar. Sensors 2022, 22, 3412. https://doi.org/10.3390/s22093412

AMA Style

Chen Y, Jin X, Weng N, Zhu W, Liu Q, Chen J. Simultaneous Extraction of Planetary Boundary-Layer Height and Aerosol Optical Properties from Coherent Doppler Wind Lidar. Sensors. 2022; 22(9):3412. https://doi.org/10.3390/s22093412

Chicago/Turabian Style

Chen, Yehui, Xiaomei Jin, Ningquan Weng, Wenyue Zhu, Qing Liu, and Jie Chen. 2022. "Simultaneous Extraction of Planetary Boundary-Layer Height and Aerosol Optical Properties from Coherent Doppler Wind Lidar" Sensors 22, no. 9: 3412. https://doi.org/10.3390/s22093412

APA Style

Chen, Y., Jin, X., Weng, N., Zhu, W., Liu, Q., & Chen, J. (2022). Simultaneous Extraction of Planetary Boundary-Layer Height and Aerosol Optical Properties from Coherent Doppler Wind Lidar. Sensors, 22(9), 3412. https://doi.org/10.3390/s22093412

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