干旱区生态环境知识资源中心(Arid): Assessment of VIIRS On-orbit Polarization Sensitivity and Its Impact on CLARREO Pathfinder Inter-calibration

Arid

DOI	10.1117/12.2532571
	Assessment of VIIRS On-orbit Polarization Sensitivity and Its Impact on CLARREO Pathfinder Inter-calibration
	Wu, Aisheng; Xiong, Xiaoxiong; Lukashin, Constantine
通讯作者	Wu, AS (corresponding author), Sci Syst & Applicat Inc, Lanham, MD 20706 USA.
会议名称	Conference on Sensors, Systems, and Next- Generation Satellites XXIII
会议日期	SEP 09-12, 2019
会议地点	Strasbourg, FRANCE
英文摘要	The primary objective of the CLARREO Pathfinder (CPF) mission is to demonstrate essential measurement technologies to enable highly accurate decadal change observations traceable on-orbit to SI standards. Another important objective of the CPF is to demonstrate inter-calibration with the VIIRS sensor and to show that such high-accuracy reference inter-calibration is achievable. To satisfy this requirement, it is important to understand and quantify uncertainties in VIIRS sensor measurements. Based on prelaunch test results, the reflective solar bands of both SNPP and NOAA-20 VIIRS have exhibited polarization sensitivities in the shortest wavelength bands, with an unexpectedly larger sensitivity observed for NOAA-20 VIIRS, particularly in bands M1 to M4. In this study, we use VIIRS Level-1B reflectance data collected over the Pseudo-Invariant Calibration Sites over North African desert region to examine the polarization associated uncertainty for these four bands. Impact due to BRDF on the reflectance data is considered by comparing baseline results obtained from the same viewing and solar zenith angles under relatively low polarization sensitivity. Impact due to detector relative difference in polarization sensitivity is examined by normalizing reflectances by the value of the middle detector. Results of this study provide useful information on VIIRS uncertainty contribution due to polarization when conducting CPF and VIIRS inter-calibration.
英文关键词	VIIRS polarization CLARREO inter-calibration
来源出版物	SENSORS, SYSTEMS, AND NEXTGENERATION SATELLITES XXIII
ISSN	0277-786X
EISSN	1996-756X
出版年	2019
卷号	11151
ISBN	978-1-5106-3006-2
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:000511160400042
WOS类目	Optics
WOS研究方向	Optics
资源类型	会议论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/370139
作者单位	[Wu, Aisheng] Sci Syst & Applicat Inc, Lanham, MD 20706 USA; [Xiong, Xiaoxiong] NASA, Goddard Space Flight Ctr, Greenbelt, MD USA; [Lukashin, Constantine] NASA, Langley Res Ctr, Hampton, VA 23665 USA
推荐引用方式 GB/T 7714	Wu, Aisheng,Xiong, Xiaoxiong,Lukashin, Constantine. Assessment of VIIRS On-orbit Polarization Sensitivity and Its Impact on CLARREO Pathfinder Inter-calibration[C]:SPIE-INT SOC OPTICAL ENGINEERING,2019.