干旱区生态环境知识资源中心(Arid): Radiometric Inter-Consistency of VIIRS DNB on Suomi NPP and NOAA-20 from Observations of Reflected Lunar Lights over Deep Convective Clouds

Arid

DOI	10.3390/rs11080934
	Radiometric Inter-Consistency of VIIRS DNB on Suomi NPP and NOAA-20 from Observations of Reflected Lunar Lights over Deep Convective Clouds
	Cao, Changyong 1; Bai, Yan 2; Wang, Wenhui 3; Choi, Taeyoung 3
通讯作者	Cao, Changyong
来源期刊	REMOTE SENSING
ISSN	2072-4292
出版年	2019
卷号	11 期号:8
英文摘要	The Visible Infrared Imaging Radiometer Suite (VIIRS) Day/Night Band (DNB) is capable of observing reflected lunar radiances at night with its high gain stage (HGS), and the radiometric calibration is traceable to the sun through gain transfer from the low gain stage (LGS) calibrated near the terminator with the solar diffuser. Meanwhile, deep convective clouds (DCC) are known to have a stable reflectance in the visible spectral range. Therefore, the reflected lunar radiance at night from the DCC provides a unique dataset for the inter-calibration of VIIRS DNB on different satellites such as Suomi National Polar-orbiting Partnership (NPP) and NOAA-20, as well as quantifying the lunar radiance as a function of lunar phase angle. This study demonstrates a methodology for comparing nighttime Suomi NPP and NOAA-20 VIIRS DNB measured DCC reflected lunar radiance at various phase angles using data from July 2018 to March 2019 with an 86 second sampling interval and comparing Suomi NPP VIIRS DNB measured lunar radiances with those from lunar model predictions. The result shows good consistency between these two instruments on the two satellites, although a low bias in the NOAA-20 VIIRS DNB of similar to 5% is found. Also, observed lunar radiance from VIIRS DNB on Suomi NPP is found to be consistent with model predictions within 3% +/- 5% (1 sigma) for a large range of lunar phase angles. However, discrepancies are significant near full moon, due to lunar opposition effects, and limitations of the lunar models. This study is useful not only for monitoring the DNB calibration stability and consistency across satellites, but also may help validate lunar models independently.
英文关键词	VIIRS DNB nighttime low light remote sensing reflected lunar light deep convective clouds suomi NPP NOAA-20 radiometric measurement consistency
类型	Article
语种	英语
国家	USA
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000467646800044
WOS关键词	VICARIOUS CALIBRATION ; SOLAR BANDS ; STABILITY ; VALIDATION ; DESERT ; MOON
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/2XILL650/218360
作者单位	1.NOAA, Ctr Satellite Applicat & Res, College Pk, MD 20740 USA; 2.Univ Maryland, CICS, College Pk, MD 20740 USA; 3.Global Sci & Technol Inc, Greenbelt, MD 20770 USA
推荐引用方式 GB/T 7714	Cao, Changyong,Bai, Yan,Wang, Wenhui,et al. Radiometric Inter-Consistency of VIIRS DNB on Suomi NPP and NOAA-20 from Observations of Reflected Lunar Lights over Deep Convective Clouds[J],2019,11(8).
APA	Cao, Changyong,Bai, Yan,Wang, Wenhui,&Choi, Taeyoung.(2019).Radiometric Inter-Consistency of VIIRS DNB on Suomi NPP and NOAA-20 from Observations of Reflected Lunar Lights over Deep Convective Clouds.REMOTE SENSING,11(8).
MLA	Cao, Changyong,et al."Radiometric Inter-Consistency of VIIRS DNB on Suomi NPP and NOAA-20 from Observations of Reflected Lunar Lights over Deep Convective Clouds".REMOTE SENSING 11.8(2019).