{"title":"Investigation of hydromorphological changes of river corridor using satellite images","authors":"M. Bagheri, M. Masoudian, A. Afrous","doi":"10.1007/s13762-024-06126-1","DOIUrl":null,"url":null,"abstract":"<div><p>In Iran during five decades ago, flood is the most prevalent disaster that threatened more than 80% of cities area. In this research, using remote sensing methods, Google Earth satellite images, and GPSVisualizer Internet system by producing multiple maps in ArcGIS and AutoCAD software environment and using the method of overlaying, the hydromorphological changes of Tajan River during floods and the effects of hydraulic structures in the river corridor on erosion and sedimentation phenomena were identified. The results showed that due to the intensity and strength of the flood flow, erosion was the predominant phenomenon in the study area and the most severe erosion occurred in segment No. 2 (the second kilometer of the study area includes the most of hydraulic structures). Also, Tajan Bridge as an intersection structure and Drop No. 4 as a parallel flow structure were the most important structures that had the greatest impact on the river’s hydromorphological changes in terms of erosion. Finally, the evaluation of the accuracy of the modeling results with the facts that occurred in nature (recorded by multiple field visits) indicated that the results were in good agreement with the facts that occurred in the study area (about 80% of the results corresponded to the facts that occurred in nature). Thus, <b>the Google Earth Pro satellite images in a short time and at the lowest cost, have the ability to measure and identify hydromorphological changes caused by river floods</b>. This method can be favored by city and regional managers and policymakers.</p></div>","PeriodicalId":589,"journal":{"name":"International Journal of Environmental Science and Technology","volume":"22 7","pages":"5289 - 5308"},"PeriodicalIF":3.0000,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Environmental Science and Technology","FirstCategoryId":"93","ListUrlMain":"https://link.springer.com/article/10.1007/s13762-024-06126-1","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
In Iran during five decades ago, flood is the most prevalent disaster that threatened more than 80% of cities area. In this research, using remote sensing methods, Google Earth satellite images, and GPSVisualizer Internet system by producing multiple maps in ArcGIS and AutoCAD software environment and using the method of overlaying, the hydromorphological changes of Tajan River during floods and the effects of hydraulic structures in the river corridor on erosion and sedimentation phenomena were identified. The results showed that due to the intensity and strength of the flood flow, erosion was the predominant phenomenon in the study area and the most severe erosion occurred in segment No. 2 (the second kilometer of the study area includes the most of hydraulic structures). Also, Tajan Bridge as an intersection structure and Drop No. 4 as a parallel flow structure were the most important structures that had the greatest impact on the river’s hydromorphological changes in terms of erosion. Finally, the evaluation of the accuracy of the modeling results with the facts that occurred in nature (recorded by multiple field visits) indicated that the results were in good agreement with the facts that occurred in the study area (about 80% of the results corresponded to the facts that occurred in nature). Thus, the Google Earth Pro satellite images in a short time and at the lowest cost, have the ability to measure and identify hydromorphological changes caused by river floods. This method can be favored by city and regional managers and policymakers.
期刊介绍:
International Journal of Environmental Science and Technology (IJEST) is an international scholarly refereed research journal which aims to promote the theory and practice of environmental science and technology, innovation, engineering and management.
A broad outline of the journal''s scope includes: peer reviewed original research articles, case and technical reports, reviews and analyses papers, short communications and notes to the editor, in interdisciplinary information on the practice and status of research in environmental science and technology, both natural and man made.
The main aspects of research areas include, but are not exclusive to; environmental chemistry and biology, environments pollution control and abatement technology, transport and fate of pollutants in the environment, concentrations and dispersion of wastes in air, water, and soil, point and non-point sources pollution, heavy metals and organic compounds in the environment, atmospheric pollutants and trace gases, solid and hazardous waste management; soil biodegradation and bioremediation of contaminated sites; environmental impact assessment, industrial ecology, ecological and human risk assessment; improved energy management and auditing efficiency and environmental standards and criteria.