On-Orbit Automated Calibration of Hyperion Hyperspectral Remote Sensor

Meng Zhang; Wei Wei; Yanna Zhang; Chunyan Zhao; Xin Li; Xiaobing Zheng

doi:10.3788/AOS201939.0528002

Acta Optica Sinica, Volume. 39, Issue 5, 0528002(2019)

On-Orbit Automated Calibration of Hyperion Hyperspectral Remote Sensor

Meng Zhang^1,2, Wei Wei², Yanna Zhang², Chunyan Zhao^1,2, Xin Li², and Xiaobing Zheng^2、*

¹ School of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei, Anhui 230026, China

² Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, Anhui 230031, China

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Figures & Tables(15)

Fig. 1. Flow chart of site-automated observation calibration technology

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Fig. 2. Automated observation instruments. (a) PSR; (b) ATR; (c) HIM

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Fig. 3. Aerosol optical depth for different dates. (a) October 14, 2016; (b) October 22, 2016; (c) November 2, 2016; (d) March 10, 2017

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Fig. 4. Channel surface reflectance of ATR

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Fig. 5. Reference reflectance for different dates

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Fig. 6. Reflectance. (a) Hyperspectral reflectance; (b) channel reflectance

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Fig. 7. Relative difference of channel reflectance

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Fig. 8. Real-time hyperspectral reflectance

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Fig. 9. TOA apparent radiance of 6S output

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Fig. 10. TOA apparent radiance of satellite

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Fig. 11. Relative difference of TOA apparent radiance

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Fig. 12. Mean and standard deviation of relative difference of four automated calibrations

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Table 1. Technical specifications of automated observation instruments

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Table 1. Technical specifications of automated observation instruments

Instrument	Center wavelength or spectral range /nm	Bandwidth or spectral resolution /nm	Function
PSR	365, 412, 500, 610, 675, 862, 940, 1025	10	Retrieval of AOD
ATR	405, 450, 525, 610, 700, 808, 980, 1540	15-40	Surface radiance measurement
HIM	400-2400	≤4 (400-950)≤15 (>950-1700)≤20 (>1700-2400)	Solar diffuse-to-global ratio measurement

Table 2. Mean and standard deviation of relative difference
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Table 2. Mean and standard deviation of relative difference
Date Mean /% Standard deviation /%
2018-04-26 -0.983 7.645
2018-05-14 -1.177 8.568
2018-08-09 0.302 2.959

Table 3. Parameters when satellite overpassing

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Table 3. Parameters when satellite overpassing

Parameters	2016-10-14	2016-10-22	2016-11-02	2017-03-10
Beijing time	10:05	9:58	10:00	9:37
Solar zenith /(°)	67.19	70.31	72.68	73.04
Solar azimuth /(°)	123.88	124.7	127.75	110.76
Viewing zenith /(°)	0	0	0	0
Viewing azimuth /(°)	0	0	0	0
Content of water vapor /(g·cm^-2)	0.578	0.602	0.552	0.301
O₃ content /DU	284	300	285	325
AOD(550 nm)	0.1738	0.2298	0.1469	0.1892

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Meng Zhang, Wei Wei, Yanna Zhang, Chunyan Zhao, Xin Li, Xiaobing Zheng. On-Orbit Automated Calibration of Hyperion Hyperspectral Remote Sensor[J]. Acta Optica Sinica, 2019, 39(5): 0528002

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