Pre-Launch Radiometric Characterization of EMI-2 on the GaoFen-5 Series of Satellites
文献类型：期刊论文
| 作者 | Zhao, Minjie1 ; Si, Fuqi1; Zhou, Haijin1; Jiang, Yu1; Ji, Chunyan1,2; Wang, Shimei1; Zhan, Kai1; Liu, Wenqing1
|
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2021-07-01 |
| 卷号 | 13 |
| 关键词 | EMI-2 GaoFen-5 pre-launch radiometric calibration instrument BSDF |
| DOI | 10.3390/rs13142843 |
| 通讯作者 | Si, Fuqi(sifuqi@aiofm.ac.cn) |
| 英文摘要 | The environmental trace gas monitoring instrument (EMI) is a space-borne imaging spectrometer onboard GaoFen-5, which was launched in May 2018, covering wavelengths in the range of 240-710 nm to measure NO2, O-3, HCHO, and SO2. An advanced EMI-2 instrument with a higher spatial resolution and sufficient signal-to-noise is currently planned for launch on the GaoFen-5(02) satellite in 2021. The EMI-2 instrument bidirectional scattering distribution function (BSDF) is obtained from the absolute irradiance and radiance calibration on-ground. Based on EMI-2 earth and sun optical paths, the key factors of BSDF parameters are introduced. An NIST-calibrated 1000 W FEL quartz tungsten halogen lamp and a 2D turntable are adopted for the absolute irradiance calibration. A large aperture integrating sphere system is used for the absolute radiance calibration. Based on absolute irradiance and radiance calibration functions, the BSDF parameters are obtained, with accuracy of 4.9% for UV1, 4.3% for UV2, 4.1% for VIS1, and 4.2% for VIS2. The on-ground measurement results show that the reflectance spectrum can be calculated from BSDF parameters. On-orbit application of the EMI-2 instrument BSDF are also discussed. |
| WOS关键词 | GASES MONITORING INSTRUMENT ; SENTINEL-5 PRECURSOR ; CALIBRATION ; TROPOMI |
| 资助项目 | National Natural Science Foundation of China[41705016] |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000676904200001 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/123227]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Si, Fuqi |
| 作者单位 | 1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Minjie,Si, Fuqi,Zhou, Haijin,et al. Pre-Launch Radiometric Characterization of EMI-2 on the GaoFen-5 Series of Satellites[J]. REMOTE SENSING,2021,13. |
| APA | Zhao, Minjie.,Si, Fuqi.,Zhou, Haijin.,Jiang, Yu.,Ji, Chunyan.,...&Liu, Wenqing.(2021).Pre-Launch Radiometric Characterization of EMI-2 on the GaoFen-5 Series of Satellites.REMOTE SENSING,13. |
| MLA | Zhao, Minjie,et al."Pre-Launch Radiometric Characterization of EMI-2 on the GaoFen-5 Series of Satellites".REMOTE SENSING 13(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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