干旱区生态环境知识资源中心(Arid): MODIS detector differences using deep convective clouds and desert targets

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DOI	10.1117/12.2571977
	MODIS detector differences using deep convective clouds and desert targets
	Mu, Qiaozhen; Angal, Amit; Twedt, Kevin; Wu, Aisheng; Xiong, Xiaoxiong
通讯作者	Mu, QZ (corresponding author), Sci Syst & Applicat Inc, 10210 Greenbelt Rd, Lanham, MD 20706 USA.
会议名称	Conference on Sensors, Systems, and Next-Generation Satellites XXIV
会议日期	SEP 21-25, 2020
会议地点	ELECTR NETWORK
英文摘要	An accurate on-orbit characterization of the Moderate Resolution Imaging Spectroradiometer (MODIS) sensors onboard the Terra and Aqua satellites is essential to satisfy the requirements from the scientific community for high-quality operational and research products. In this study, NASA's C6.1 L1B data are utilized to assess the stability of the calibrated top of atmosphere reflectance retrieved from individual detectors within a spectral band over deep convective clouds (DCCs) and desert sites. The results from these invariant Earth targets show detector-to-detector (D2D) differences in the L1B reflectance products for select MODIS reflective solar bands. For Aqua MODIS, the D2D differences have no significant change over time for the bands studied. However, the D2D differences exhibit an increase in magnitude over time for Terra MODIS bands 1, 3-7, and 26, which can induce noticeable striping and higher uncertainties in the downstream data products. The D2D stability assessment results over DCCs are consistent with those observed over desert sites. In addition, the view-angle dependence of the D2D differences is investigated by separating the frames along scan into five zones. The D2D assessment is performed for each of the five zones, and the results will further benefit any improvements in the calibration of a detector-dependent response versus scan angle that can be considered for future MODIS Level 1B Collections.
英文关键词	MODIS detector-to-detector difference L1B reflectance product response versus scan angle (RVS) deep convective clouds (DCCs)
来源出版物	SENSORS, SYSTEMS, AND NEXT-GENERATION SATELLITES XXIV
ISSN	0277-786X
EISSN	1996-756X
出版年	2020
卷号	11530
ISBN	978-1-5106-3874-7
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:000632468300029
WOS关键词	SENSITIVITY
WOS类目	Engineering, Aerospace ; Remote Sensing ; Optics
WOS研究方向	Engineering ; Remote Sensing ; Optics
资源类型	会议论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353177
作者单位	[Mu, Qiaozhen; Angal, Amit; Twedt, Kevin; Wu, Aisheng] Sci Syst & Applicat Inc, 10210 Greenbelt Rd, Lanham, MD 20706 USA; [Xiong, Xiaoxiong] NASA, Sci & Explorat Directorate, GSFC, Greenbelt, MD 20771 USA
推荐引用方式 GB/T 7714	Mu, Qiaozhen,Angal, Amit,Twedt, Kevin,et al. MODIS detector differences using deep convective clouds and desert targets[C]:SPIE-INT SOC OPTICAL ENGINEERING,2020.