干旱区生态环境知识资源中心(Arid): Response Versus Scan-Angle Assessment of MODIS Reflective Solar Bands in Collection 6.1 Calibration

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DOI	10.1109/TGRS.2019.2946963
	Response Versus Scan-Angle Assessment of MODIS Reflective Solar Bands in Collection 6.1 Calibration
	Bhatt, Rajendra 1; Doelling, David R.2; Angal, Amit 3; Xiong, Xiaoxiong 4; Haney, Conor 1; Scarino, Benjamin R.1; Wu, Aisheng 3; Gopalan, Arun 1
通讯作者	Bhatt, Rajendra
来源期刊	IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
ISSN	0196-2892
EISSN	1558-0644
出版年	2020
卷号	58 期号:4 页码:2276-2289
英文摘要	The Moderate Resolution Imaging Spectroradiometer (MODIS) instruments onboard the Aqua and Terra satellites have been operated for nearly two decades, producing high-quality earth observation data sets suitable for a broad range of scientific studies regarding the earth & x2019;s land, ocean, and atmospheric processes. The high radiometric accuracy of MODIS reflective solar band (RSB) calibration has also served as benchmark measurements for on-orbit cross-calibration studies. As the two MODIS instruments have operated well beyond their design lifespan of six years, the measurements from the onboard calibrators alone become inadequate to characterize the sensor & x2019;s response at all scan angles, as evinced by long-term drifts observed at certain scan positions of the Aqua-MODIS 0.64- and 0.86- bands in Collection 6 (C6) data set. The latest MODIS Level 1B C6.1 data set incorporates earth-view response trending from invariant desert sites as supplemental inputs to characterize the scan-angle calibration dependencies for all RSB. This article presents a deep convective cloud (DCC)-based calibration approach for an independent evaluation of the MODIS RSB response versus scan-angle (RVS) performance in C6.1. The long-term calibration stability and RVS differences in C6.1 have been significantly improved for Aqua-MODIS RSB. The observed RVS differences of more than 2 & x0025; in Aqua-MODIS C6 bands 1 and 2 have been reduced to within 1 & x0025; in C6.1. Some RSBs of Terra-MODIS have suffered temporal drifts up to & x007E;2 & x0025; and calibration shifts up to 3 & x0025;, particularly around 2016 when the Terra satellite entered into safe mode. The DCC approach has been found very effective in tracking the on-orbit RVS changes over time.
英文关键词	Clouds and the Earth's Radiant Energy System (CERES) deep convective cloud (DCC) Earth Polychromatic Imaging Camera (EPIC) Moderate Resolution Imaging Spectroradiometer (MODIS) radiometric calibration response versus scan-angle (RVS) VIIRS
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000538748900003
WOS关键词	ENERGY SYSTEM CERES ; CLOUDS ; STABILITY ; DESERT ; ATMOSPHERE
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/2XILL650/318906
作者单位	1.Sci Syst & Applicat Inc, Hampton, VA 23666 USA; 2.NASA, Langley Res Ctr, Climate Sci Branch, Hampton, VA 23666 USA; 3.Sci Syst & Applicat Inc, Lanham, MD 20706 USA; 4.NASA, Goddard Space Flight Ctr, Sci & Explorat Directorate, Greenbelt, MD 20771 USA
推荐引用方式 GB/T 7714	Bhatt, Rajendra,Doelling, David R.,Angal, Amit,et al. Response Versus Scan-Angle Assessment of MODIS Reflective Solar Bands in Collection 6.1 Calibration[J],2020,58(4):2276-2289.
APA	Bhatt, Rajendra.,Doelling, David R..,Angal, Amit.,Xiong, Xiaoxiong.,Haney, Conor.,...&Gopalan, Arun.(2020).Response Versus Scan-Angle Assessment of MODIS Reflective Solar Bands in Collection 6.1 Calibration.IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,58(4),2276-2289.
MLA	Bhatt, Rajendra,et al."Response Versus Scan-Angle Assessment of MODIS Reflective Solar Bands in Collection 6.1 Calibration".IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 58.4(2020):2276-2289.