High precision on-orbit spectral calibration of atmospheric infrared ultra-spectral sounder | |
Du Li-Li2; Liu Li3; Ge Shu-Le3; Li Zhi-Wei2; Zhou Chuang-Jie1; Ding Guo-Shen2,4 | |
刊名 | JOURNAL OF INFRARED AND MILLIMETER WAVES |
2021-04-01 | |
卷号 | 40 |
关键词 | spectral calibration ultra-spectral resolution characteristic lines Doppler shift GF-5 satellite solar occultation |
ISSN号 | 1001-9014 |
DOI | 10.11972/j.issn.1001-9014.2021.02.012 |
通讯作者 | Ding Guo-Shen(guoshenahu@163.com) |
英文摘要 | 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. |
资助项目 | National Natural Science Foundation of China[41601379] |
WOS关键词 | WAVELENGTH CALIBRATION |
WOS研究方向 | Optics |
语种 | 英语 |
出版者 | SCIENCE PRESS |
WOS记录号 | WOS:000641385400012 |
资助机构 | National Natural Science Foundation of China |
内容类型 | 期刊论文 |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/122134] |
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.Beijing Inst Remote Sensing Informat, Beijing 100085, Peoples R China 2.Chinese Acad Sci, Key Lab Opt Calibrat & Characterizat, Anhui Inst Opt & Fine Mech, Hefei 230031, Peoples R China 3.China Ctr Resources Satellite Data & Applicat, Beijing 100094, 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). |
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