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VICARIOUS RADIOMETRIC CALIBRATION USING A GROUND RADIANCE-BASED APPROACH: A CASE STUDY OF SENTINEL 2A MSI | |
Liu, Yaokai1,2; Ma, Zhihong1,2; Ma, Lingling1; Wang, Ning1; Qian, Yonggang1; Li, Chuanrong1; Tang, Lingli1 | |
通讯作者 | Ma, Zhihong |
会议名称 | 38th IEEE International Geoscience and Remote Sensing Symposium (IGARSS) |
会议日期 | JUL 22-27, 2018 |
会议地点 | Valencia, SPAIN |
英文摘要 | Radiometric characteristics monitoring of optical remote sensing data is a very essential step that enables further quantitative study and application of the data. In this paper, long term vicarious radiometric calibration using ground reflected radiance-based approach was introduced in this study. A case study of Sentinel 2A multispectral imager (MSI) vicarious radiometric characteristics monitoring based on our proposed approach with an automatic observation system was conducted over a large scale desert at the Baotou calibration site in Inner Mongolia, China. And, twelve clear Sentinel 2A MSI scenes as well as ground measurements were successfully acquired during the year of 2017. Top of Atmospheric (TOA) radiance and reflectance were predicted with introduced approach from ground reflected radiance and atmospheric data. The long term radiometric calibration results suggests that the Sentinel 2A MSI display a stable radiometric performance over the calibration period. Vicarious and onboard radiometric calibration results were also cross compared with average relative error about 5%. Uncertainty analysis also show that the TOA radiance overall uncertainty is less than 3.5% due to the atmospheric characteristics, surface characteristics, and the calibration model uncertainties sources. |
英文关键词 | vicarious radiometric calibration Sentinel 2A radiance-based calibration site |
来源出版物 | IGARSS 2018 - 2018 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM |
ISSN | 2153-6996 |
出版年 | 2018 |
页码 | 3296-3299 |
EISBN | 978-1-5386-7150-4 |
出版者 | IEEE |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | CPCI-S |
WOS记录号 | WOS:000451039803076 |
WOS类目 | Engineering, Electrical & Electronic ; Geosciences, Multidisciplinary ; Remote Sensing |
WOS研究方向 | Engineering ; Geology ; Remote Sensing |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/307447 |
作者单位 | 1.Chinese Acad Sci, Acad Optoelect, Key Lab Quantitat Remote Sensing Informat Technol, Beijing 100094, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, Yaokai,Ma, Zhihong,Ma, Lingling,et al. VICARIOUS RADIOMETRIC CALIBRATION USING A GROUND RADIANCE-BASED APPROACH: A CASE STUDY OF SENTINEL 2A MSI[C]:IEEE,2018:3296-3299. |
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