干旱区生态环境知识资源中心(Arid): Discharge estimation and rating curve derivation, using satellite geometry data and isovel contours at Karun River, Iran

Arid

DOI	10.1007/s11600-022-00965-7
	Discharge estimation and rating curve derivation, using satellite geometry data and isovel contours at Karun River, Iran
	Farnoush, Hossein; Maghrebi, Mahmoud F. F.
通讯作者	Maghrebi, MF
来源期刊	ACTA GEOPHYSICA
ISSN	1895-6572
EISSN	1895-7455
出版年	2023
卷号	71 期号:6 页码:2825-2838
英文摘要	Determining discharge and stage-discharge curves in fluvial environments without hydrometric gauges is a critical challenge in hydrologic studies and river hydraulics. This issue will be more evident in managing flood hazards in the rivers of arid areas without flow measurement gauges, where the reaction time is the critical factor. Researchers and designers have always tried to access simpler, cheaper methods to estimate discharge and rating curves. This research aims to facilitate the determination of the discharge and stage-discharge relationship by applying remote sensing techniques and the concept of isovel contours. For this purpose, the geometry of the river cross section is determined using remotely sensed data from the images of the Sentinel-1 and two satellites, and then discharge passed through the cross section is estimated by the single point velocity measurement method. The observed data were collected from the Mollasani station in Karun River, Iran, to confirm this method. The obtained discharges and stage-discharge relationship curves are used to evaluate the accuracy of the proposed methodology. Statistical analyses showed that the mean value of the normalized percentage error and mean absolute percentage error (MAPE) calculated based on the difference between the estimated and observed discharges are limited to 6.3 and 8.36%, respectively. Also, the stage-discharge curves in these studies were estimated with a maximum MAPE of 9.5%, which is considered a good initial approximation considering the minimum required data.
英文关键词	Discharge estimation Stage-discharge Isovel contours Remote sensing satellite Single point velocity measurement method (SPM) Karun river
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000911909100002
WOS关键词	SYNTHETIC-APERTURE RADAR ; WATER INDEX NDWI ; IMAGERY
WOS类目	Geochemistry & Geophysics
WOS研究方向	Geochemistry & Geophysics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394957
推荐引用方式 GB/T 7714	Farnoush, Hossein,Maghrebi, Mahmoud F. F.. Discharge estimation and rating curve derivation, using satellite geometry data and isovel contours at Karun River, Iran[J],2023,71(6):2825-2838.
APA	Farnoush, Hossein,&Maghrebi, Mahmoud F. F..(2023).Discharge estimation and rating curve derivation, using satellite geometry data and isovel contours at Karun River, Iran.ACTA GEOPHYSICA,71(6),2825-2838.
MLA	Farnoush, Hossein,et al."Discharge estimation and rating curve derivation, using satellite geometry data and isovel contours at Karun River, Iran".ACTA GEOPHYSICA 71.6(2023):2825-2838.