干旱区生态环境知识资源中心(Arid): Analysis of Spatial and Temporal Variability in Libya-4 with Landsat 8 and Sentinel-2 Data for Optimized Ground Target Location

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DOI	10.3390/rs11242909
	Analysis of Spatial and Temporal Variability in Libya-4 with Landsat 8 and Sentinel-2 Data for Optimized Ground Target Location
	Fernando Rodrigo, Juan; Gil, Jorge; Salvador, Pablo; Gomez, Diego; Sanz, Julia; Luis Casanova, Jose
通讯作者	Fernando Rodrigo, Juan
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2019
卷号	11 期号:24
英文摘要	Pseudo-Invariant Calibration Sites (PICS) have been widely used by the remote sensing community in recent decades for post-launch absolute calibration, cross-calibration, and the monitoring of radiometric stability. The Committee on Earth Observation Satellites (CEOS) has established several official PICS for these purposes. Of these, Libya-4 is the most commonly used, due to its high uniformity and stability. The site was chosen as a large-area site for medium resolution sensors, and with high-resolution sensors now common, smaller sites are being identified. This work has identified an improved area of interest (AOI) within Libya-4 by using combined Landsat 8 and Sentinel 2 data. The Optimized Ground Target (OGT) was determined by calculating the coefficient of variation along with the use of a quasi-Newton optimization algorithm combined with the Basin-Hopping global optimization technique to constrain a search area small enough to perform a final brute-force refinement. The Coefficient of Variation CV of the proposed OGT is significantly lower than that in the original CEOS area, with differences between the CV of both zones in the order of 1% in the visible near-infrared (VNIR) bands. This new AOI has the potential to improve the cross-calibration between high-resolution sensors using the PICS methodology through an OGT with more homogeneous and stable characteristics.
英文关键词	PICS Libya-4 CEOS Coefficient of Variation Quasi-Newton Optimization Basin-Hopping Landsat 8 Sentinel 2
类型	Article
语种	英语
国家	Spain
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000507333400025
WOS关键词	GLOBAL OPTIMIZATION ; CROSS CALIBRATION ; DESERT SITES ; STABILITY ; CLUSTERS ; PRODUCT ; IMPACT
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
EI主题词	2019-12-02
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311505
作者单位	Univ Valladolid, Remote Sensing Lab LATUV, Paseo Belen 11, E-47011 Valladolid, Spain
推荐引用方式 GB/T 7714	Fernando Rodrigo, Juan,Gil, Jorge,Salvador, Pablo,et al. Analysis of Spatial and Temporal Variability in Libya-4 with Landsat 8 and Sentinel-2 Data for Optimized Ground Target Location[J],2019,11(24).
APA	Fernando Rodrigo, Juan,Gil, Jorge,Salvador, Pablo,Gomez, Diego,Sanz, Julia,&Luis Casanova, Jose.(2019).Analysis of Spatial and Temporal Variability in Libya-4 with Landsat 8 and Sentinel-2 Data for Optimized Ground Target Location.REMOTE SENSING,11(24).
MLA	Fernando Rodrigo, Juan,et al."Analysis of Spatial and Temporal Variability in Libya-4 with Landsat 8 and Sentinel-2 Data for Optimized Ground Target Location".REMOTE SENSING 11.24(2019).