Real-Time Estimation of Whole-Layer Atmospheric Optical Turbulence with Multi-Source Measurement Data

Dan Geng; Wenyue Zhu; Jinxian Peng; Jinpeng Luo; Chun Qing; Qiang Liu

doi:10.3788/AOS222130

Acta Optica Sinica, Volume. 43, Issue 18, 1801003(2023)

Real-Time Estimation of Whole-Layer Atmospheric Optical Turbulence with Multi-Source Measurement Data

Dan Geng^1、*, Wenyue Zhu^2,3, Jinxian Peng¹, Jinpeng Luo¹, Chun Qing^2,3, and Qiang Liu^2,3、**

Author Affiliations

¹Unit 63611 of PLA, Korla841000, Xinjiang, China

²Key Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, Anhui, China

³Advanced Laser Technology Laboratory of Anhui Province, Hefei 230037, Anhui, China

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Figures & Tables(9)

Fig. 1. Sketch map of atmospheric measurement equipments

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Fig. 2. Atmospheric boundary layer height (August 3-5, 2022)

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Fig. 3. Estimated whole-layer $C_{n}^{2}$ profile at different time (August 4, 2022). (a) 02:00; (b) 07:30; (c) 16:00

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Fig. 4. Contrast of estimated $r_{0}$ and measured $r_{0}$ (August 3-5, 2022)

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Fig. 5. Deviation between estimated $r_{0}$ and measured $r_{0}$

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Fig. 6. Measured $C_{n}^{2}$ on surface layer (August 3-5, 2022)

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Fig. 7. Contrast and deviation of estimated $r_{0}$ in two layers, estimated $r_{0}$ as a whole, and measured $r_{0}$ (August 4, 2022). (a) Contrast; (b) deviation

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Table 1. Raw data parameters of measurement equipments

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Table 1. Raw data parameters of measurement equipments

Parameter	Data source	Measurement height	Vertical resolution	Time resolution
Temperature profile	Microwave radiometer	2.5 m-10 km	50 m（2.5 m-0.5 km） 100 m（0.5-2 km） 250 m（2-10 km）	<3 min
Temperature profile	Radiosonde data	10-25 km	50 m	12 h
Pressure profile	Meteorological sensor	6 m	—	<10 s
Pressure profile	Radiosonde data	50 m-25 km	50 m	12 h
Wind profile	Wind profile radar	2.5 m-3 km	100 m	<3 min
Wind profile	Radiosonde data	3-25 km	50 m	12 h
Refractive index structure constant	Micro-thermal meter	6 m	—	<10 s
Atmospheric coherence length	Atmospheric coherence length monitor	2.5 m	—	<20 s

Table 2. Statistical analysis between estimated $r_{0}$ and measured $r_{0}$
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Table 2. Statistical analysis between estimated $r_{0}$ and measured $r_{0}$
Atmospheric stratification Exponential decline model $r_{0}$ versus measured $r_{0}$
RMSE Rxy
Unstable 2.988 0.8346
Near neutral 6.858 -0.5111
Stable 5.088 -0.6236

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Dan Geng, Wenyue Zhu, Jinxian Peng, Jinpeng Luo, Chun Qing, Qiang Liu. Real-Time Estimation of Whole-Layer Atmospheric Optical Turbulence with Multi-Source Measurement Data[J]. Acta Optica Sinica, 2023, 43(18): 1801003

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