气候变化领域集成服务门户(CCPortal): Flood susceptibility mapping using a geomorphometric approach in South Australian basins

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DOI	10.1007/s11069-020-04481-z
	Flood susceptibility mapping using a geomorphometric approach in South Australian basins
	Ahmed A.; Hewa G.; Alrajhi A.
发表日期	2021
ISSN	0921030X
起始页码	629
结束页码	653
卷号	106 期号:1
英文摘要	Watershed characteristics and their hydrological responses can have severe effects on the occurrence and extent of floods. Therefore, this study focuses on the integration of geospatial techniques and remote sensing data to identify watershed terrain characteristics and evaluate the influence of these characteristics on flood susceptibility in South Australia. Data from the Shuttle Radar Topography Mission (SRTM) and geologic and topographic maps and a geographic information system (GIS) were used to delineate drainage basins, measure morphometric parameters and link different parameters to evaluate the degree of flood vulnerability. Depending on their relations to the flood hazards, the morphometric parameters were categorized into two groups; then, a rank score was assigned to each group. Finally, the flood susceptibility of the basins was visualized, and the basins were classified into low, intermediate and high flood hazard areas. The results show that approximately 45.7, 44.7 and 9.7% of the study area is at risk of high, medium and low degrees of flooding, respectively. The results were validated through secondary data relating to historic floods. The causes of flooding were analysed using rainfall and road density data, while the consequences of flooding were verified by the population distribution across the study area. The findings of this study can be used to support decision-makers in planning and investing in mitigation measures, especially in highly susceptible areas of South Australian basins. © 2021, Crown.
关键词	Flood GIS Morphometric analysis Remote sensing South Australia
英文关键词	decision making; flood; GIS; remote sensing; Shuttle Radar Topography Mission; terrain; topographic mapping; watershed; Indian Ocean; South Australian Basin
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206067
作者单位	Centre for Scarce Resources and Circular Economy (ScaRCE), UniSA STEM, University of South Australia, Mawson Lakes Campus, Adelaide, SA P2-50, Australia; Geology Department, Division of Water Resource, Desert Research Center, Mathaf El Matariya Street, Cairo, 11753, Egypt; King Abdulaziz City for Science and Technology, King Abdullah Road, Riyadh, 11442, Saudi Arabia
推荐引用方式 GB/T 7714	Ahmed A.,Hewa G.,Alrajhi A.. Flood susceptibility mapping using a geomorphometric approach in South Australian basins[J],2021,106(1).
APA	Ahmed A.,Hewa G.,&Alrajhi A..(2021).Flood susceptibility mapping using a geomorphometric approach in South Australian basins.Natural Hazards,106(1).
MLA	Ahmed A.,et al."Flood susceptibility mapping using a geomorphometric approach in South Australian basins".Natural Hazards 106.1(2021).