干旱区生态环境知识资源中心(Arid): Geo-Leo intercalibration to evaluate the radiometric performance of NOAA-20 VIIRS and GOES-16 ABI

Arid

DOI	10.1117/12.2528468
	Geo-Leo intercalibration to evaluate the radiometric performance of NOAA-20 VIIRS and GOES-16 ABI
	Uprety, Sirish; Cao, Changyong; Shao, Xi
通讯作者	Uprety, S (corresponding author), Univ Maryland, College Pk, MD 20742 USA.
会议名称	Conference on Earth Observing Systems XXIV
会议日期	AUG 11-15, 2019
会议地点	San Diego, CA
英文摘要	With more than seven years in space, S-NPP VIIRS has been rigorously calibrated and validated. The global coverage of VIIRS has been doubled after the launch of NOAA-20 in November 2017. Since no direct SNO exist between SNPP and NOAA-20, radiometric consistency between VIIRS sensors onboard these satellites can be quantified through double differencing. This study performs geo-leo interccomparison using SNOs between GOES-16 ABI and VIIRS instruments. A past study suggested that NOAA-20 VIIRS has nearly -2% bias relative to S-NPP for most of the VNIR bands. Similarly, GOES-16 ABI comparison with S-NPP VIIRS using field campaign data over Sonoran desert in the past indicated a large discrepancy (more than 6%) for ABI band 2 (0.86 mu m). This paper attempts to fulfill two major purposes, one is to evaluate the temporal radiometric consistency between VIIRS and ABI and the other is to quantify the radiometric consistency between the two VIIRS instruments through double differencing using ABI as a reference. SNOs over the ocean are analyzed to quantify the bias for both NOAA-20 VIIRS and ABI relative to S-NPP using ray matching technique. The impact on bias due to spectral differences will be corrected using spectral band adjustment factors estimated using hyperspectral measurements from instruments such as Sciamachy.
英文关键词	VIIRS and ABI consistency NOAA-20 VIIRS calibration VIIRS RSB bias double differencing
来源出版物	EARTH OBSERVING SYSTEMS XXIV
ISSN	0277-786X
EISSN	1996-756X
出版年	2019
卷号	11127
ISBN	978-1-5106-2948-6
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:000535229000017
WOS关键词	SUOMI-NPP VIIRS ; CALIBRATION ; MODIS ; AQUA
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/2XILL650/370083
作者单位	[Uprety, Sirish; Shao, Xi] Univ Maryland, College Pk, MD 20742 USA; [Cao, Changyong] NOAA, NESIDS, STAR, College Pk, MD USA
推荐引用方式 GB/T 7714	Uprety, Sirish,Cao, Changyong,Shao, Xi. Geo-Leo intercalibration to evaluate the radiometric performance of NOAA-20 VIIRS and GOES-16 ABI[C]:SPIE-INT SOC OPTICAL ENGINEERING,2019.