干旱区生态环境知识资源中心(Arid): Radiometric Cross-Calibration of the Wide Field View Camera Onboard GaoFen-6 in Multispectral Bands

Arid

DOI	10.3390/rs12061037
	Radiometric Cross-Calibration of the Wide Field View Camera Onboard GaoFen-6 in Multispectral Bands
	Yang, Aixia 1; Zhong, Bo 1; Hu, Longfei 1; Wu, Shanlong 1; Xu, Zhaopeng 2; Wu, Hongbo 3; Wu, Junjun 1; Gong, Xueshuang 2; Wang, Haibo 2; Liu, Qinhuo 1
通讯作者	Zhong, Bo
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2020
卷号	12 期号:6
英文摘要	GaoFen6 (GF-6), successfully launched on June 2, 2018, is the sixth satellite of the High-Definition Earth observation system (HDEOS). Although GF-6 is the first high-resolution satellite in China to achieve precise agricultural observation, it will be widely used in many other domains, such as land survey, natural resources management, emergency management, ecological environment and so on. The GF-6 was not equipped with an onboard calibration instrument, so on-orbit radiometric calibration is essential. This paper aimed at the on-orbit radiometric calibration of the wide field of view camera (WFV) onboard GF-6 (GF-6/WFV) in multispectral bands. Firstly, the radiometric capability of GF-6/WFV is evaluated compared with the Operational Land Imager (OLI) onboard Landsat-8, Multi Spectral Instrument (MSI) onboard Sentinel-2 and Moderate Resolution Imaging Spectroradiometer (MODIS) onboard Terra, which shows that GF-6/WFV has an obvious attenuation. Consequently, instead of vicarious calibration once a year, more frequent calibration is required to guarantee its radiometric consistency. The cross-calibration method based on the Badain Jaran Desert site using the bi-directional reflectance distribution function (BRDF) model calculated by Landsat-8/OLI and ZY-3/Three-Line Camera (TLC) data is subsequently applied to GF-6/WFV and much higher frequencies of calibration are achieved. Finally, the cross-calibration results are validated using the synchronized ground measurements at Dunhuang test site and the uncertainty of the proposed method is analyzed. The validation shows that the relative difference of cross-calibration is less than 5% and it is satisfied with the requirements of cross-calibration.
英文关键词	cross-calibration GF-6 WFV radiometric capability Badain Jaran Desert bidirectional reflectance distribution function (BRDF) model
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000526820600139
WOS关键词	REFLECTIVE BANDS ; MODIS ; SATELLITE ; IMAGERY ; LAND ; CHANNELS ; AVHRR
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315435
作者单位	1.Chinese Acad Sci, Aerosp Informat Res Inst, State Key Lab Remote Sensing Sci, Beijing 100101, Peoples R China; 2.China Ctr Resources Satellite Data & Applicat, Beijing 100094, Peoples R China; 3.Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China
推荐引用方式 GB/T 7714	Yang, Aixia,Zhong, Bo,Hu, Longfei,et al. Radiometric Cross-Calibration of the Wide Field View Camera Onboard GaoFen-6 in Multispectral Bands[J],2020,12(6).
APA	Yang, Aixia.,Zhong, Bo.,Hu, Longfei.,Wu, Shanlong.,Xu, Zhaopeng.,...&Liu, Qinhuo.(2020).Radiometric Cross-Calibration of the Wide Field View Camera Onboard GaoFen-6 in Multispectral Bands.REMOTE SENSING,12(6).
MLA	Yang, Aixia,et al."Radiometric Cross-Calibration of the Wide Field View Camera Onboard GaoFen-6 in Multispectral Bands".REMOTE SENSING 12.6(2020).