First Year On-Orbit Calibration of the Chinese Environmental Trace Gas Monitoring Instrument Onboard GaoFen-5
文献类型：期刊论文
| 作者 | Zhao, MinJie1 ; Si, FuQi1; Wang, Yu2; Zhou, HaiJin1; Wang, ShiMei1; Jiang, Yu1; Liu, WenQing1
|
| 刊名 | IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
 |
| 出版日期 | 2020-12-01 |
| 卷号 | 58 |
| 关键词 | Electromagnetic interference Calibration Monitoring Instruments Radiometry Optical sensors Earth Calibration environmental trace gas monitoring instrument (EMI) GaoFen-5 on-orbit monitoring solar diffusers (SDs) |
| ISSN号 | 0196-2892 |
| DOI | 10.1109/TGRS.2020.2988573 |
| 通讯作者 | Si, FuQi(sifuqi@aiofm.ac.cn) ; Wang, Yu(yuwang@aiofm.ac.cn) |
| 英文摘要 | Environmental trace gas monitoring instrument (EMI) onboard GaoFen-5 was launched in May 2018 and has successfully operated on-orbit for more than a year. EMI contains four grating spectrometers, covering wavelengths in the range 240-710 nm with a spectral resolution of 0.3-0.5 nm, and enables one-day global coverage. For EMI on-orbit calibration, two onboard solar diffusers (SD), one surface reflectance aluminum diffuser, and one quartz volume diffuser (QVD) are used to measure solar spectra. The solar spectra are used to perform accurate spectral and radiometric calibrations. EMI on-orbit spectral calibration contains wavelength calibration and instrument spectral response function (ISRF), both of which are the key quantities in trace gas retrievals based on differential optical absorption spectroscopy (DOAS) analysis. The wavelength calibration is performed using the Fraunhofer lines in the solar spectrum, and the ISRF parameters are obtained by fitting high-resolution and EMI-measured solar spectra. Based on the known solar irradiation and characteristic of SD, SD radiance can be calculated and is used for EMI on-orbit radiometric calibration. The radiometric calibration also determines the absolute Earth reflectance spectra that are used as inputs for atmospheric retrieval algorithms. For EMI on-orbit radiometric monitoring, aluminum diffuser is used as reference SD to monitor QVD degradation. An internal white light source is used to detect pixel performance and monitor radiometric throughput. |
| WOS关键词 | SENTINEL-5 PRECURSOR ; TROPOMI |
| 资助项目 | National Natural Science Foundation of China[41705016] ; Natural Science Foundation of Anhui Province[1808085QD114] |
| WOS研究方向 | Geochemistry & Geophysics ; Engineering ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000594389800022 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/105493]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Si, FuQi; Wang, Yu |
| 作者单位 | 1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China 2.Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230601, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, MinJie,Si, FuQi,Wang, Yu,et al. First Year On-Orbit Calibration of the Chinese Environmental Trace Gas Monitoring Instrument Onboard GaoFen-5[J]. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,2020,58. |
| APA | Zhao, MinJie.,Si, FuQi.,Wang, Yu.,Zhou, HaiJin.,Wang, ShiMei.,...&Liu, WenQing.(2020).First Year On-Orbit Calibration of the Chinese Environmental Trace Gas Monitoring Instrument Onboard GaoFen-5.IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,58. |
| MLA | Zhao, MinJie,et al."First Year On-Orbit Calibration of the Chinese Environmental Trace Gas Monitoring Instrument Onboard GaoFen-5".IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 58(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。