High precision on-orbit spectral calibration of atmospheric infrared ultra-spectral sounder

doi:10.11972/j.issn.1001-9014.2021.02.012

HFCAS OpenIR

	High precision on-orbit spectral calibration of atmospheric infrared ultra-spectral sounder
	Du Li-Li1 ; Liu Li 2; Ge Shu-Le 2; Li Zhi-Wei1 ; Zhou Chuang-Jie 3; Ding Guo-Shen 1,4
	2021-04-01
发表期刊	JOURNAL OF INFRARED AND MILLIMETER WAVES
ISSN	1001-9014
通讯作者	Ding Guo-Shen(guoshenahu@163.com)
摘要	The atmospheric infrared ultra-spectral sounder (AIUS)is one of the main loads of GF-5 satellite. It is used to obtain the vertical distribution information of various atmospheric trace gases through solar occultation observation. And accurate spectral calibration is the key and foundation for its data quantitative inversion. Ultra-spectral resolution and no matching on-board spectral calibration equipment make it is difficult to realize high precision on-orbit spectral calibration for AIUS. A multi-line linear fitting algorithm based on atmospheric characteristic lines is proposed, which employs the key technologies such as Doppler shift correction, lines selection and accurate peak position determination to improve the spectral calibration accuracy. And after the successful launch of GF-5 satellite, a series of spectral calibrations and accuracy analysis are carried out for AIUS. The results show that this algorithm can achieve high precision spectral calibration of AIUS. The mean absolute deviations of MCT and InSb channels are 0.00437cm(-1) and 0.00389cm(-1), which are less than 0.008cm(-1) required by trace gas inversion application.
关键词	spectral calibration ultra-spectral resolution characteristic lines Doppler shift GF-5 satellite solar occultation
DOI	10.11972/j.issn.1001-9014.2021.02.012
关键词[WOS]	WAVELENGTH CALIBRATION
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41601379]
项目资助者	National Natural Science Foundation of China
WOS研究方向	Optics
WOS类目	Optics
WOS记录号	WOS:000641385400012
出版者	SCIENCE PRESS
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/122135
专题	中国科学院合肥物质科学研究院
通讯作者	Ding Guo-Shen
作者单位	1.Chinese Acad Sci, Key Lab Opt Calibrat & Characterizat, Anhui Inst Opt & Fine Mech, Hefei 230031, Peoples R China 2.China Ctr Resources Satellite Data & Applicat, Beijing 100094, Peoples R China 3.Beijing Inst Remote Sensing Informat, Beijing 100085, Peoples R China 4.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Du Li-Li,Liu Li,Ge Shu-Le,et al. High precision on-orbit spectral calibration of atmospheric infrared ultra-spectral sounder[J]. JOURNAL OF INFRARED AND MILLIMETER WAVES,2021,40.
APA	Du Li-Li,Liu Li,Ge Shu-Le,Li Zhi-Wei,Zhou Chuang-Jie,&Ding Guo-Shen.(2021).High precision on-orbit spectral calibration of atmospheric infrared ultra-spectral sounder.JOURNAL OF INFRARED AND MILLIMETER WAVES,40.
MLA	Du Li-Li,et al."High precision on-orbit spectral calibration of atmospheric infrared ultra-spectral sounder".JOURNAL OF INFRARED AND MILLIMETER WAVES 40(2021).