Simultaneous Measurement of Total Atmospheric Transmittance and Precipitable Water Vapor at Night

Jiuming Cheng; Jianyu Li; Chaolong Cui; Yao Huang; Congming Dai; Honghua Huang

doi:10.3788/AOS202141.0401003

Acta Optica Sinica, Volume. 41, Issue 4, 0401003(2021)

Simultaneous Measurement of Total Atmospheric Transmittance and Precipitable Water Vapor at Night

Jiuming Cheng^1,2,3, Jianyu Li^1,3、**, Chaolong Cui^1,3、***, Yao Huang^1,3, Congming Dai^1,3, and Honghua Huang^1,3、*

¹Key Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, China

²Science Island Branch, Graduate School, University of Science and Technology of China, Hefei, Anhui 230026, China

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

show less

Abstract Get PDF(in Chinese)

Figures & Tables(10)

Fig. 1. Schematic of instrument structure

Download full size

Fig. 2. Flow chart of image acquisition

Download full size

Fig. 3. Calibration curves of all bands except water vapor absorption band. (a) May 18, 2020; (b) Jun 26, 2020

Download full size

Fig. 4. Calibration curve of water vapor absorption band of 940 nm. (a) May 18, 2020; (b) Jun 26, 2020

Download full size

Fig. 5. Change of atmospheric vertical transmittance. (a) May 18, 2020; (b) Jun 26, 2020

Download full size

Fig. 6. Comparison of measurement results between stellar radiometer and lidar

Download full size

Fig. 7. Comparison of measurement results between stellar radiometer and microwave radiometer

Download full size

Table 1. Parameters used in calculating SNR
View table
Table 1. Parameters used in calculating SNR
Parameter Value
ϕ_T /(m^-2·s^-1) 4.45×10⁸
ϕ_B /(m^-2·s^-1·sr^-1) 2.36×10¹⁴
A /m² 0.073
τ_fT 0.4
τ_fB 0.4
q_T 0.1
q_B 0.1
τ₀ 0.2
α_u 1.8×10^-6
t /ms 15

Table 2. Calibration dates and calibration star parameters
View table
Table 2. Calibration dates and calibration star parameters
Date Star name Spectral type Magnitude Right ascension Declination
May 18, 2020 HIP37279 F5 0.4 7 h 39 min 18 s 5°13'38″
Jun 26, 2020 HIP86032 A5 2.1 17 h 34 min 56 s 12°33'38″

Table 3. Calibration value, correlation coefficient, and standard deviation under different wavebands

View table

Table 3. Calibration value, correlation coefficient, and standard deviation under different wavebands

Date	Parameter	440 nm	500 nm	532 nm	610 nm	671 nm	780 nm	880 nm	940 nm	1025 nm
	ln G₀	12.26	12.22	12.46	12.54	12.50	12.16	11.92	10.92
May 18,2020	R	0.95	0.91	0.92	0.91	0.91	0.90	0.90	0.98
	SD	0.015	0.010	0.010	0.008	0.006	0.005	0.004	0.018
	lnG₀	11.22	11.69		11.65	11.52	10.86	10.29	10.15	9.50
Jun 26,2020	R	0.98	0.96		0.92	0.91	0.93	0.91	0.95	0.91
	SD	0.019	0.020		0.021	0.017	0.014	0.014	0.071	0.012

Tools

Get Citation

Copy Citation Text

Jiuming Cheng, Jianyu Li, Chaolong Cui, Yao Huang, Congming Dai, Honghua Huang. Simultaneous Measurement of Total Atmospheric Transmittance and Precipitable Water Vapor at Night[J]. Acta Optica Sinica, 2021, 41(4): 0401003

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites