干旱区生态环境知识资源中心(Arid): On-Orbit Calibration and Performance of NOAA-20 VIIRS Reflective Solar Bands

Arid

DOI	10.1109/TGRS.2021.3108970
	On-Orbit Calibration and Performance of NOAA-20 VIIRS Reflective Solar Bands
	Twedt, Kevin; Lei, Ning; Xiong, Xiaoxiong; Angal, Amit; Li, Sherry; Chang, Tiejun; Sun, Junqiang
通讯作者	Twedt, K (corresponding author), Sci Syst & Applicat Inc, Lanham, MD 20706 USA.
来源期刊	IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
ISSN	0196-2892
EISSN	1558-0644
出版年	2022
英文摘要	The NOAA-20 (N20) satellite was launched on November 18, 2017 carrying the second Visible Infrared Imaging Radiometer Suite (VIIRS) instrument. Immediately following the launch, the VIIRS passed a series of intensive calibration and validation tests, after which regular calibration and operation activities have continued successfully for more than three years. The production of NASA Collection 2 Level 1B (C2 L1B) for N20 VIIRS began in summer 2019. In this article, we evaluate the early mission performance of the N20 VIIRS reflective solar bands (RSB) covering the first three full years of operation. The calibrated RSB gains are calculated primarily from the onboard solar diffuser (SD) and used in generating the C2 L1B reflectance and radiance products. We also show the on-orbit performance of the instrument noise, signal-to-noise ratio (SNR), and a reflectance uncertainty assessment. Comparisons are made to the first three years of operation of the first VIIRS instrument, aboard the Suomi National Polar-orbiting Partnership (SNPP) satellite. We evaluate the long-term stability of the calibrated N20 RSB reflectance product by looking at the long-term trends of lunar observations and data from the pseudo-invariant Libya 4 desert site. The N20 RSB have had excellent early mission performance, with changes in the gain of less than 0.5% in the first three years across all detectors, stable L1B reflectance, and very stable values of detector SNR and reflectance uncertainty.
英文关键词	Calibration Instruments Sun Degradation Signal to noise ratio Detectors Extraterrestrial measurements Calibration reflective solar bands (RSB) solar diffuser (SD) Visible Infrared Imaging Radiometer Suite (VIIRS)
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000732769800001
WOS关键词	DIFFUSER ; SNPP
WOS类目	Geochemistry & Geophysics ; Engineering, Electrical & Electronic ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Geochemistry & Geophysics ; Engineering ; 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/2XILL650/374583
作者单位	[Twedt, Kevin; Lei, Ning; Angal, Amit; Li, Sherry; Chang, Tiejun; Sun, Junqiang] Sci Syst & Applicat Inc, Lanham, MD 20706 USA; [Xiong, Xiaoxiong] NASA, Sci & Explorat Directorate, GSFC, Greenbelt, MD 20771 USA
推荐引用方式 GB/T 7714	Twedt, Kevin,Lei, Ning,Xiong, Xiaoxiong,et al. On-Orbit Calibration and Performance of NOAA-20 VIIRS Reflective Solar Bands[J],2022.
APA	Twedt, Kevin.,Lei, Ning.,Xiong, Xiaoxiong.,Angal, Amit.,Li, Sherry.,...&Sun, Junqiang.(2022).On-Orbit Calibration and Performance of NOAA-20 VIIRS Reflective Solar Bands.IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING.
MLA	Twedt, Kevin,et al."On-Orbit Calibration and Performance of NOAA-20 VIIRS Reflective Solar Bands".IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING (2022).