干旱区生态环境知识资源中心(Arid): Accuracy Assessment of Different Open-Source Digital Elevation Model Through Morphometric Analysis for a Semi-arid River Basin in the Western Part of India

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DOI	10.1007/s41651-021-00089-4
	Accuracy Assessment of Different Open-Source Digital Elevation Model Through Morphometric Analysis for a Semi-arid River Basin in the Western Part of India
	Shaikh, Mohamedmaroof; Yadav, Sanjaykumar; Manekar, Vivek
通讯作者	Shaikh, M (corresponding author), Sardar Vallabhbhai Natl Inst Technol, Civil Engn Dept, Surat, Gujarat, India.
来源期刊	JOURNAL OF GEOVISUALIZATION AND SPATIAL ANALYSIS
ISSN	2509-8810
EISSN	2509-8829
出版年	2021
卷号	5 期号:2
英文摘要	Accurate watershed delineation and drainage system extraction are critical aspects for the hydrological and geomorphological models. However, high-resolution digital elevation models (DEMs) are often not accessible without cost. This reason leads to assessing low-resolution open-source products that are freely accessible. Watershed morphology evaluation is very important for flood control and recovery planning and understanding basin hydrology. In this study, the Rel River Basin has been selected as the study area in northern Gujarat, India. DEM reliability is a significant element of such a study. The accuracy of DEM highly affects the accuracy of mapping the catchment area. This analysis has been therefore directed to compare various morphological watershed parameters depicted by the open-source DEMs, i.e., Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), Shuttle Radar Topography Mission (SRTM), and Cartosat and Advanced Land Observing Satellite (ALOS). A new approach has been introduced in this study to combine four DEMs (ALOS, SRTM, Cartosat, and ASTER) by averaging the pixels to enhance the accuracy of the calculated topography known as Average DEM. This study compares various open-source DEMs and newly generated Average DEM with digitized topographic data using morphometric parameters. Percentage error is used to compute the accuracy of the open-source DEMs and the Average DEM for every morphometric parameter. While comparing the open-source DEMs and Average DEM with the Survey of India (SOI) toposheet using mean percentage error (MPE) and the mean absolute percentage error (MAPE), Average DEM exhibited the least error. Hence, Average DEM has been considered more appropriate to derive the morphological characteristics for the Rel River Basin.
英文关键词	ASTER SRTM Cartosat ALOS Average DEM SOI toposheet
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000707348500001
WOS关键词	VERTICAL ACCURACY ; DRAINAGE SYSTEMS ; 30-M RESOLUTION ; ASTER GDEM2 ; SRTM DEM ; VALIDATION ; DELINEATION ; ALOS
WOS类目	Environmental Sciences ; Geography ; Geography, Physical ; Remote Sensing
WOS研究方向	Environmental Sciences & Ecology ; Geography ; Physical Geography ; Remote Sensing
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363901
作者单位	[Shaikh, Mohamedmaroof; Yadav, Sanjaykumar; Manekar, Vivek] Sardar Vallabhbhai Natl Inst Technol, Civil Engn Dept, Surat, Gujarat, India
推荐引用方式 GB/T 7714	Shaikh, Mohamedmaroof,Yadav, Sanjaykumar,Manekar, Vivek. Accuracy Assessment of Different Open-Source Digital Elevation Model Through Morphometric Analysis for a Semi-arid River Basin in the Western Part of India[J],2021,5(2).
APA	Shaikh, Mohamedmaroof,Yadav, Sanjaykumar,&Manekar, Vivek.(2021).Accuracy Assessment of Different Open-Source Digital Elevation Model Through Morphometric Analysis for a Semi-arid River Basin in the Western Part of India.JOURNAL OF GEOVISUALIZATION AND SPATIAL ANALYSIS,5(2).
MLA	Shaikh, Mohamedmaroof,et al."Accuracy Assessment of Different Open-Source Digital Elevation Model Through Morphometric Analysis for a Semi-arid River Basin in the Western Part of India".JOURNAL OF GEOVISUALIZATION AND SPATIAL ANALYSIS 5.2(2021).