Acta Photonica Sinica, Volume. 51, Issue 12, 1212004(2022)
Research and Application of the Calibration of the Ground Radiometer in Dunhuang Test
Figures & Tables(12)
Fig. 5. The Surface reflectance in the direction of satellite transit observation
Fig. 6. The linear correlation between the logarithm of DN observed by ATR and airmass
Fig. 7. Comparison of calibration coefficient of AQUA/MODIS between on-board calibration and the automated vicarious calibration
Fig. 8. The relative deviation of calibration coefficient of AQUA/MODIS between on-board calibration and automated vicarious calibration
Fig. 9. The average relative deviation of AQUA/MODIS between on-board calibration and the automated vicarious calibration
Table 1. Technical parameter of instruments
View tableView in ArticleTable 1. Technical parameter of instruments
Parameter PSR ATR HIM Band/nm 340、380、440、500、675、
870、937、1 020、1 640
400、450、500、600、675、810、1 000、1 550 400~2 400 Application（Band/nm） Water vapor（937），aerosol（the other） Surface reflectance Irradiance，Diffuse-total ratio FWHM/nm 2~25 15~40 ≤4（400~950），≤15（950~1 700），
≤20（1 700~2 400）
Table 2. The uncertainty estimates of the calibration coefficient for SRBC method
View tableView in ArticleTable 2. The uncertainty estimates of the calibration coefficient for SRBC method
Source of uncertainty Uncertainty Reflectance of standard panel 1% Measurement of ATR 0.19% Atmospheric transmission 1.3%~3.6% Diffuse total ratio 2% Other uncertainties（filter transmittance，
Earth-Sun distance，etc）
1% Total 4.35%@400 nm；3.29%@450 nm；2.87%@500 nm；
3.23%@600 nm；2.78%@675 nm；3.09%
Table 3. The band parameters of AQUA/MODIS
View tableView in ArticleTable 3. The band parameters of AQUA/MODIS
Band/nm Bandwidth/nm Signal to noise ratio Ch1 620~670 128 Ch2 841~876 201 Ch3 459~479 243 Ch4 545~565 228 Ch5 1 230~1 250 74 Ch6 1 628~1 652 275 Ch7 2 105~2 135 110 Ch8 405~420 880 Ch9 438~448 838 Ch10 483~493 802 Ch11 526~536 754 Ch12 546~536 750
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Dong HUANG, Xin LI, Yanna ZHANG, Wei WEI, Quan ZHANG. Research and Application of the Calibration of the Ground Radiometer in Dunhuang Test[J]. Acta Photonica Sinica, 2022, 51(12): 1212004
Paper Information
Category: Instrumentation, Measurement and Metrology
Received: Apr. 8, 2022
Accepted: Jun. 22, 2022
Published Online: Feb. 6, 2023
The Author Email: LI Xin (xli@aiofm.ac.cn)
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