FY-3D MERSI On-Orbit Radiometric Calibration from the Lunar View
文献类型：期刊论文
| 作者 | Wu, Ronghua1,2,3; Zhang, Peng3; Xu, Na3; Hu, Xiuqing3; Chen, Lin3; Zhang, Lu3 ; Yang, Zhongdong3
|
| 刊名 | SENSORS
 |
| 出版日期 | 2020-09-01 |
| 卷号 | 20 |
| 关键词 | lunar irradiance Medium Resolution Spectral Imager (MERSI) reflective solar bands (RSBs) FY-3 |
| DOI | 10.3390/s20174690 |
| 通讯作者 | Zhang, Peng(zhangp@cma.cn) |
| 英文摘要 | Limited by the on-orbital calibration capability, scaling the measured radiance in accuracy and stability is challenging for the Earth observation satellites in the reflective solar bands (RSBs). Although the lunar calibration is a well-developed technique in the RSBs, limited work has been done for Chinese Earth observation satellites. To improve the on-orbital calibration performance, the advanced MEdium Resolution Spectral Imager (MERSI II), which is the primary payload of the fourth satellite of the Fengyun 3 Series (FY-3D), expands the space view angle of the imager in order to capture better lunar images. In this study, we propose an absolute radiometric calibration method based on the FY-3D/MERSI lunar observation data. A lunar irradiance model named ROLO/GIRO has been used together with the necessary data procedures, including dark current count estimation, single pixel irradiance calculation, and full disk lunar irradiance calculation. The calibration coefficients obtained by the lunar calibration are compared with the pre-launch laboratory calibration. The results show that the deviations between the two calibration procedures are in a reasonable range in general. However, a relatively high non-linear response was found in the low energy incidence for some detectors, which leads to the large deviation in the corresponding bands. This study explored an ideal and independent method to validate MERSI on-orbit radiometric performance. The lunar calibration practiced for MERSI also gave a valuable example that can be recommended to the other Chinese Earth observation satellites. |
| WOS关键词 | REFLECTIVE SOLAR BANDS ; SPECTRAL IRRADIANCE ; MOON ; SATELLITE |
| 资助项目 | National Key R&D Program of China[2018YFB0504900] ; National Natural Science Foundation of China[2015AA123700] |
| WOS研究方向 | Chemistry ; Engineering ; Instruments & Instrumentation |
| 语种 | 英语 |
| WOS记录号 | WOS:000571082900001 |
| 出版者 | MDPI |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/104226]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zhang, Peng |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 3.Natl Satellite Meteorol Ctr, Key Lab Radiometr Calibrat & Validat Environm Sat, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Ronghua,Zhang, Peng,Xu, Na,et al. FY-3D MERSI On-Orbit Radiometric Calibration from the Lunar View[J]. SENSORS,2020,20. |
| APA | Wu, Ronghua.,Zhang, Peng.,Xu, Na.,Hu, Xiuqing.,Chen, Lin.,...&Yang, Zhongdong.(2020).FY-3D MERSI On-Orbit Radiometric Calibration from the Lunar View.SENSORS,20. |
| MLA | Wu, Ronghua,et al."FY-3D MERSI On-Orbit Radiometric Calibration from the Lunar View".SENSORS 20(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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