干旱区生态环境知识资源中心(Arid): S-NPP and N20 VIIRS RSB bands detector-to-detector calibration differences assessment using a homogeneous ground target

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DOI	10.1117/12.2568694
	S-NPP and N20 VIIRS RSB bands detector-to-detector calibration differences assessment using a homogeneous ground target
	Li, Sherry; Xiong, Xiaoxiong; Lei, Ning
通讯作者	Li, S (corresponding author), Sci Syst & Applicat Inc, 10210 Greenbelt Rd,Suite 600, Lanham, MD 20706 USA.
会议名称	Conference on Earth Observing Systems XXV
会议日期	AUG 24-SEP 04, 2020
会议地点	ELECTR NETWORK
英文摘要	The S-NPP and N20 satellites have successfully operated since their launches on October 28, 2011 and November 18, 2017, respectively. This paper provides an assessment of the detector calibration stability for the reflective solar bands (RSBs) observed from both S-NPP and N20 VIIRS. Top- of-atmosphere radiances from near-nadir observations over the homogeneous Libya 4 desert site are extracted from the S-NPP VIIRS Collection 1 and N20 Collection 2 Level-1B products. The radiances from individual detectors per Half-angle Mirror side are studied. The comparisons of the normalized radiance to all detector average values indicate that the detector calibration differences are wavelength dependent. The S-NPP detector differences have been slowly increasing in the past 8.5 years and bands M1-M4 have 1.3%-2.2% detector differences in 2019. N20 detector differences are stable and small in the past two years except SWIR M bands. N20 M10 and M11 have 1.3% and 2.1% detector differences, respectively. S-NPP DNB detector differences are about 0.8% and N20 DNB detector differences are about 0.5%. Most bands HAM side differences are less than 0.25% in the past years except N20 VIIRS M1 HAM side differences are 0.57% in 2018 and 0.54% in 2019. The Libya 4 images have small but noticeable striping in S-NPP M1-M4 data as well as in N20 M1, M8, M10, and M11 data. These study results have been applied in the S-NPP Collection 2 new algorithm to remove the detector differences. This research help scientists and VIIRS users better understand detector calibration differences in different version VIIRS products.
英文关键词	Libya 4 wavelength dependence Half-angle Mirror (HAM)
来源出版物	EARTH OBSERVING SYSTEMS XXV
ISSN	0277-786X
EISSN	1996-756X
出版年	2020
卷号	11501
ISBN	978-1-5106-3809-9
出版者	SPIE-INT SOC OPTICAL ENGINEERING
类型	Proceedings Paper
语种	英语
收录类别	CPCI-S
WOS记录号	WOS:000632463000036
WOS类目	Remote Sensing ; Physics, Applied
WOS研究方向	Remote Sensing ; Physics
资源类型	会议论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353121
作者单位	[Li, Sherry; Lei, Ning] Sci Syst & Applicat Inc, 10210 Greenbelt Rd,Suite 600, Lanham, MD 20706 USA; [Xiong, Xiaoxiong] NASA Goddard Space Flight Ctr, 8800 Greenbelt Greenbelt Rd, Greenbelt, MD 20661 USA
推荐引用方式 GB/T 7714	Li, Sherry,Xiong, Xiaoxiong,Lei, Ning. S-NPP and N20 VIIRS RSB bands detector-to-detector calibration differences assessment using a homogeneous ground target[C]:SPIE-INT SOC OPTICAL ENGINEERING,2020.