干旱区生态环境知识资源中心(Arid): New Approach for Temporal Stability Evaluation of Pseudo-Invariant Calibration Sites (PICS)

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DOI	10.3390/rs11121502
	New Approach for Temporal Stability Evaluation of Pseudo-Invariant Calibration Sites (PICS)
	Tuli, Fatima Tuz Zafrin 1; Pinto, Cibele Teixeira 1; Angal, Amit 2; Xiong, Xiaoxiong 3; Helder, Dennis 1
通讯作者	Pinto, Cibele Teixeira
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2019
卷号	11 期号:12
英文摘要	Pseudo-Invariant Calibration Sites (PICS) are one of the most popular methods for in-flight vicarious radiometric calibration of Earth remote sensing satellites. The fundamental question of PICS temporal stability has not been adequately addressed. However, the main purpose of this work is to evaluate the temporal stability of a few PICS using a new approach. The analysis was performed over six PICS (Libya 1, Libya 4, Niger 1, Niger 2, Egypt 1 and Sudan 1). The concept of a Virtual Constellation was developed to provide greater temporal coverage and also to overcome the dependence limitation of any specific characteristic derived from one particular sensor. TOA reflectance data from four sensors consistently demonstrating stable calibration to within 5%-the Landsat 7 ETM+ (Enhanced Thematic Mapper Plus), Landsat 8 OLI (Operational Land Imager), Terra MODIS (Moderate Resolution Imaging Spectroradiometer) and Sentinel-2A MSI (Multispectral Instrument)-were merged into a seamless dataset. Instead of using the traditional method of trend analysis (Student's T test), a nonparametric Seasonal Mann-Kendall test was used for determining the PICS stability. The analysis results indicate that Libya 4 and Egypt 1 do not exhibit any monotonic trend in six reflective solar bands common to all of the studied sensors, indicating temporal stability. A decreasing monotonic trend was statistically detected in all bands, except SWIR 2, for Sudan 1 and the Green and Red bands for Niger 1. An increasing trend was detected in the Blue band for Niger 2 and the NIR band for Libya 1. These results do not suggest abandoning PICS as a viable calibration source. Rather, they indicate that PICS temporal stability cannot be assumed and should be regularly monitored as part of the sensor calibration process.
英文关键词	PICS BRDF virtual constellation monotonic trend radiometric calibration Landsat MODIS Sentinel
类型	Article
语种	英语
国家	USA
开放获取类型	Green Published, Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000473794600108
WOS关键词	MODIS COLLECTION 6 ; RADIOMETRIC CALIBRATION ; DESERT ; LANDSAT ; ETM+
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; 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/2XILL650/218386
作者单位	1.South Dakota State Univ, Dept Elect Engn & Comp Sci, Brookings, SD 57007 USA; 2.Sci Syst & Applicat Inc, Lanham, MD 20706 USA; 3.NASA, GSFC, Greenbelt, MD 20771 USA
推荐引用方式 GB/T 7714	Tuli, Fatima Tuz Zafrin,Pinto, Cibele Teixeira,Angal, Amit,et al. New Approach for Temporal Stability Evaluation of Pseudo-Invariant Calibration Sites (PICS)[J],2019,11(12).
APA	Tuli, Fatima Tuz Zafrin,Pinto, Cibele Teixeira,Angal, Amit,Xiong, Xiaoxiong,&Helder, Dennis.(2019).New Approach for Temporal Stability Evaluation of Pseudo-Invariant Calibration Sites (PICS).REMOTE SENSING,11(12).
MLA	Tuli, Fatima Tuz Zafrin,et al."New Approach for Temporal Stability Evaluation of Pseudo-Invariant Calibration Sites (PICS)".REMOTE SENSING 11.12(2019).