干旱区生态环境知识资源中心(Arid): Investigation of rivers planform change in a semi-arid region of high vulnerability to climate change: A case study of Tigris River and its tributaries in Iraq

Arid

DOI	10.1016/j.rsma.2023.103233
	Investigation of rivers planform change in a semi-arid region of high vulnerability to climate change: A case study of Tigris River and its tributaries in Iraq
	Rasheed, Nisreen Jawad; Al-Khafaji, Mahmoud S.; Alwan, Imzahim A.
通讯作者	Rasheed, NJ
来源期刊	REGIONAL STUDIES IN MARINE SCIENCE
ISSN	2352-4855
出版年	2023
卷号	68
英文摘要	In this paper, the planform changes of rivers in a semi-arid region, which are particularly vulnerable to the impacts of climate change, were investigated. This research provides valuable insights into the adaptation and mitigation efforts necessary for effective climate change risk management in this area. A comprehensive analysis was carried out using satellite images and GIS to investigate the changes in the planform of the Mosul-Makhool reach of the Tigris River and its Lesser Zab and Greater Zab tributaries as a case study. To date, no studies have examined the impact of dam construction and climate change on the planform changes of these rivers. A survey was conducted to analyze the channel planform from 1979 to 2021. Various channel planform features were computed, including sinuosity index, braiding index, erosion and accretion, migration rate, confluence point, and junction angle. Results demonstrated that the Tigris River has low meandering features, the Lesser Zab has moderate meandering features, and the Greater Zab has the highest sinuosity index value of 1.95, which indicates very high meandering features. The change in the sinuosity index was fairly small. Generally, the rivers tended slightly towards deposition rather than erosion. The migration rate of the meandering rivers was high, with the highest value recorded in the Tigris River and Greater Zab. The average movement rate of the Greater Zab-Tigris River confluence was 31.81 m/year, and the Lesser Zab-Tigris River confluence moved 20.2 m/year. The study results demonstrate that climate change and dam construction significantly impact the rivers' planform in semiarid regions. This investigation holds significant importance in evaluating morphodynamic changes in river systems worldwide with great detail and accuracy using satellite data.
英文关键词	River planform Tigris River Greater Zab Lesser Zab Sinuosity indices Erosion and deposition Migration rate Confluence movement
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001097201900001
WOS关键词	DIFFERENCE WATER INDEX ; CHANNEL WIDTH ; MEANDERING RIVER ; MIGRATION RATES ; DAMODAR RIVER ; NORTHERN IRAQ ; WEST-BENGAL ; REACH ; EXTRACTION ; GEOMETRY
WOS类目	Ecology ; Marine & Freshwater Biology
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398221
推荐引用方式 GB/T 7714	Rasheed, Nisreen Jawad,Al-Khafaji, Mahmoud S.,Alwan, Imzahim A.. Investigation of rivers planform change in a semi-arid region of high vulnerability to climate change: A case study of Tigris River and its tributaries in Iraq[J],2023,68.
APA	Rasheed, Nisreen Jawad,Al-Khafaji, Mahmoud S.,&Alwan, Imzahim A..(2023).Investigation of rivers planform change in a semi-arid region of high vulnerability to climate change: A case study of Tigris River and its tributaries in Iraq.REGIONAL STUDIES IN MARINE SCIENCE,68.
MLA	Rasheed, Nisreen Jawad,et al."Investigation of rivers planform change in a semi-arid region of high vulnerability to climate change: A case study of Tigris River and its tributaries in Iraq".REGIONAL STUDIES IN MARINE SCIENCE 68(2023).