干旱区生态环境知识资源中心(Arid): Mapping and accuracy assessment of siltation of recharge dams using remote sensing technique

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DOI	10.1038/s41598-020-67137-9
	Mapping and accuracy assessment of siltation of recharge dams using remote sensing technique
	Rajendran, Sankaran 1; Nasir, Sobhi 2; Al Jabri, Khalifa 3
通讯作者	Rajendran, Sankaran
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2020
卷号	10 期号:1
英文摘要	This study demonstrates the use of ASTER data to map the siltation of the Al-Khod Dam constructed at the lower reaches of Samail Catchment area, north Muscat, Sultanate of Oman. In this study, the decorrelated image of spectral bands 6, 3, and 1 clearly discriminated the distribution of siltation. The occurrence of siltation is confirmed by the detection of minerals using the VNIR-SWIR bands by the Spectral Angle Mapper (SAM) method. In addition, the siltation of the dam is studied for the years 1987 to 2018 using Landsat satellite images. Interpretation of images showed a gradual increase of the siltation. Mapping accuracy for the occurrence of siltation is assessed by a confusion matrix which produced an overall accuracy of 97.88% and Kappa coefficient of 0.98 in the Maximum Likelihood method. Results of image analyses are verified in the field and confirmed through laboratory analyses. The study of spectral absorption characters of field samples using a Portable Infrared Mineral Analyzer (PIMA) showed the presence of OH molecule bearing minerals (clays, serpentines, etc.) and carbonate minerals (calcite and dolomite) in the silt deposits. The occurrence of these minerals is confirmed further by X-ray diffraction (XRD) and Scanning Electron Microscope (SEM) analyses.
类型	Article
语种	英语
国家	Qatar ; Oman
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000546573500006
WOS关键词	ESTIMATING GROUNDWATER RECHARGE ; RADIOMETRIC CROSS-CALIBRATION ; LAND-USE CHANGE ; CARBONATE MINERALS ; SATELLITE SIGNAL ; SOLAR SPECTRUM ; ARID AREAS ; IMPACT ; REGIONS ; ZONE
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319795
作者单位	1.Qatar Univ, Ctr Environm Sci, POB 2713, Doha, Qatar; 2.Sultan Qaboos Univ, Earth Sci Res Ctr, Muscat 123, Oman; 3.Sultan Qaboos Univ, Dept Civil & Architectural Engn, Muscat 123, Oman
推荐引用方式 GB/T 7714	Rajendran, Sankaran,Nasir, Sobhi,Al Jabri, Khalifa. Mapping and accuracy assessment of siltation of recharge dams using remote sensing technique[J],2020,10(1).
APA	Rajendran, Sankaran,Nasir, Sobhi,&Al Jabri, Khalifa.(2020).Mapping and accuracy assessment of siltation of recharge dams using remote sensing technique.SCIENTIFIC REPORTS,10(1).
MLA	Rajendran, Sankaran,et al."Mapping and accuracy assessment of siltation of recharge dams using remote sensing technique".SCIENTIFIC REPORTS 10.1(2020).