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- Title
Preflight Spectral Calibration of the Ozone Monitoring Suite-Nadir on FengYun 3F Satellite.
- Authors
Wang, Qian; Wang, Yongmei; Xu, Na; Mao, Jinghua; Sun, Ling; Shi, Entao; Hu, Xiuqing; Chen, Lin; Yang, Zhongdong; Si, Fuqi; Liu, Jianguo; Zhang, Peng
- Abstract
The Ozone Monitoring Suite-Nadir (OMS-N) instrument is the first hyperspectral remote sensor in the ultraviolet band of China's Fengyun series satellites. It can be used to detect several kinds of atmospheric constituents. This paper describes the prelaunch spectral calibration of the OMS-N onboard FengYun 3F. Several critical spectral parameters including the spectral resolution, spectral dispersion, and the instrument spectral response function were determined through laser-based measurements. A secondary peak of the instrument spectral response function from the short wavelength side of the ultraviolet band was found, and the possible influence on data applications was analyzed using a reference solar model and radiative transfer model. The results indicate that the spectral resolution and spectral accuracy of OMS-N meet the mission requirements. However, the asymmetries in the instrument spectral response function in the ultraviolet band were found near nadir rows, which are expressed as the "asymmetric central peak" and "secondary peak". The analysis results show that if the influences of the instrument spectral response function "asymmetric central peak" and "secondary peak" in the ultraviolet band are ignored, they will bring an error as large as 5% at the center of the absorption line.
- Subjects
CHINA; SPECTRAL sensitivity; OZONE; CALIBRATION; RADIATIVE transfer; PROJECT POSSUM; GEOSTATIONARY satellites
- Publication
Remote Sensing, 2024, Vol 16, Issue 9, p1538
- ISSN
2072-4292
- Publication type
Article
- DOI
10.3390/rs16091538