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Open AccessArticle
On-Orbit Wavelength Calibration Error Analysis of the Spaceborne Hyperspectral Greenhouse Gas Monitoring Instrument Using the Solar Fraunhofer Lines
by
Yulong Guo
Yulong Guo 1,2,
Cailan Gong
Cailan Gong 1,*
,
Yong Hu
Yong Hu
Dr. Yong Hu is an Associate Researcher at the Key Laboratory of Infrared System Detection and of of [...]
Dr. Yong Hu is an Associate Researcher at the Key Laboratory of Infrared System Detection and Imaging
Technologies, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, China. He completed his PhD studies at the Shanghai Institute of Technical Physics, Chinese Academy of Sciences. He was awarded the Third Prize in the Shanghai Excellent Surveying, Mapping, and Geographic Information Gongchao Award. He is a Director of the Shanghai Society of Aerospace and Remote Sensing and the Head of the Space Science and Application Standardization Working Group of the National Technical Committee for Standardization of Space Science and its Applications. His research
interests include temperature and humidity profiles, FY-3D/HIRAS, retrieval systems, and infrared hyperspectral and remote sensing.
1,
Fuqiang Zheng
Fuqiang Zheng 1 and
Yunmeng Liu
Yunmeng Liu 1
1
Key Laboratory of Infrared System Detection and Imaging Technologies, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
2
University of Chinese Academy of Sciences, Beijing 100049, China
*
Author to whom correspondence should be addressed.
Remote Sens. 2024, 16(18), 3367; https://doi.org/10.3390/rs16183367 (registering DOI)
Submission received: 8 June 2024
/
Revised: 6 September 2024
/
Accepted: 8 September 2024
/
Published: 10 September 2024
Abstract
Accurate on-orbit wavelength calibration of the spaceborne hyperspectral payload is the key to the quantitative analysis and application of observational data. Due to the high spectral resolution of general spaceborne hyperspectral greenhouse gas (GHG) detection instruments, the common Fraunhofer lines in the solar atmosphere can be used as a reference for on-orbit wavelength calibration. Based on the performances of a GHG detection instrument under development, this study simulated the instrument’s solar-viewing measurement spectra and analyzed the main sources of errors in the on-orbit wavelength calibration method of the instrument using the solar Fraunhofer lines, including the Doppler shift correction error, the instrumental measurement error, and the peak-seek algorithm error. The calibration accuracy was independently calculated for 65 Fraunhofer lines within the spectral range of the instrument. The results show that the wavelength calibration accuracy is mainly affected by the asymmetry of the Fraunhofer lines and the random error associated with instrument measurement, and it can cause calibration errors of more than 1/10 of the spectral resolution at maximum. A total of 49 Fraunhofer lines that meet the requirements for calibration accuracy were screened based on the design parameters of the instrument. Due to the uncertainty of simulation, the results in this study have inherent limitations, but provide valuable insights for quantitatively analyzing the errors of the on-orbit wavelength calibration method using the Fraunhofer lines, evaluating the influence of instrumental parameters on the calibration accuracy, and enhancing the accuracy of on-orbit wavelength calibration for similar GHG detection payloads.
Share and Cite
MDPI and ACS Style
Guo, Y.; Gong, C.; Hu, Y.; Zheng, F.; Liu, Y.
On-Orbit Wavelength Calibration Error Analysis of the Spaceborne Hyperspectral Greenhouse Gas Monitoring Instrument Using the Solar Fraunhofer Lines. Remote Sens. 2024, 16, 3367.
https://doi.org/10.3390/rs16183367
AMA Style
Guo Y, Gong C, Hu Y, Zheng F, Liu Y.
On-Orbit Wavelength Calibration Error Analysis of the Spaceborne Hyperspectral Greenhouse Gas Monitoring Instrument Using the Solar Fraunhofer Lines. Remote Sensing. 2024; 16(18):3367.
https://doi.org/10.3390/rs16183367
Chicago/Turabian Style
Guo, Yulong, Cailan Gong, Yong Hu, Fuqiang Zheng, and Yunmeng Liu.
2024. "On-Orbit Wavelength Calibration Error Analysis of the Spaceborne Hyperspectral Greenhouse Gas Monitoring Instrument Using the Solar Fraunhofer Lines" Remote Sensing 16, no. 18: 3367.
https://doi.org/10.3390/rs16183367
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