{"title":"揭示河流形态的隐藏动态:来自2010年伊朗西南部山洪暴发和卡伦-4大坝影响的见解","authors":"Arash Koohizadeh Dehkordi , Milad Khastar Boroujeni , Mohammad Reza Nikoo , Nasim Sadra , Rouhallah Fatahi Nafchi , Hossein Samadi Boroujeni","doi":"10.1016/j.jhydrol.2025.133709","DOIUrl":null,"url":null,"abstract":"<div><div>This research presents a novel, comprehensive analysis of the geomorphological evolution of the Bazoft River over 30 years (1985–2015), combining high-resolution satellite imagery with advanced spatial analysis techniques to reveal the unprecedented interplay between extreme flood events and large-scale dam construction. It highlights, for the first time in this region, how the December 2010 flash flood and the Karun-4 Dam’s impoundment revealed previously unexplored dimensions of erosion, deposition, and channel dynamics. Large bank migrations and flood-event-related asymmetric bank erosions were realized; impoundment of this dam caused ultimate variations within a radius of 21 km in geometrical status. It remarkably identifies distinct phases of instability and stabilization in the period of filling, which is important to understand sediment transport and river regulation in extreme anthropogenic intervention. The general sinuosity trends underlined the differential response of the reaches, identifying the second and third intervals as those most sensitive to hydrological and structural controls. The paper uses remote sensing to bring together temporal dynamics of extremes with spatial scales of dam-induced geomorphic modification. This would add value to the current understanding and management of river systems undergoing rapid hydrological and structural alteration and contribute to the international debate on the sustainable development of water resources and riverine ecosystem resilience.</div></div>","PeriodicalId":362,"journal":{"name":"Journal of Hydrology","volume":"661 ","pages":"Article 133709"},"PeriodicalIF":6.3000,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Unveiling hidden dynamics of river morphology: insights from the 2010 flash flood and Karun-4 dam impact in Southwestern Iran\",\"authors\":\"Arash Koohizadeh Dehkordi , Milad Khastar Boroujeni , Mohammad Reza Nikoo , Nasim Sadra , Rouhallah Fatahi Nafchi , Hossein Samadi Boroujeni\",\"doi\":\"10.1016/j.jhydrol.2025.133709\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This research presents a novel, comprehensive analysis of the geomorphological evolution of the Bazoft River over 30 years (1985–2015), combining high-resolution satellite imagery with advanced spatial analysis techniques to reveal the unprecedented interplay between extreme flood events and large-scale dam construction. It highlights, for the first time in this region, how the December 2010 flash flood and the Karun-4 Dam’s impoundment revealed previously unexplored dimensions of erosion, deposition, and channel dynamics. Large bank migrations and flood-event-related asymmetric bank erosions were realized; impoundment of this dam caused ultimate variations within a radius of 21 km in geometrical status. It remarkably identifies distinct phases of instability and stabilization in the period of filling, which is important to understand sediment transport and river regulation in extreme anthropogenic intervention. The general sinuosity trends underlined the differential response of the reaches, identifying the second and third intervals as those most sensitive to hydrological and structural controls. The paper uses remote sensing to bring together temporal dynamics of extremes with spatial scales of dam-induced geomorphic modification. This would add value to the current understanding and management of river systems undergoing rapid hydrological and structural alteration and contribute to the international debate on the sustainable development of water resources and riverine ecosystem resilience.</div></div>\",\"PeriodicalId\":362,\"journal\":{\"name\":\"Journal of Hydrology\",\"volume\":\"661 \",\"pages\":\"Article 133709\"},\"PeriodicalIF\":6.3000,\"publicationDate\":\"2025-06-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Hydrology\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0022169425010479\",\"RegionNum\":1,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CIVIL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Hydrology","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022169425010479","RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}
Unveiling hidden dynamics of river morphology: insights from the 2010 flash flood and Karun-4 dam impact in Southwestern Iran
This research presents a novel, comprehensive analysis of the geomorphological evolution of the Bazoft River over 30 years (1985–2015), combining high-resolution satellite imagery with advanced spatial analysis techniques to reveal the unprecedented interplay between extreme flood events and large-scale dam construction. It highlights, for the first time in this region, how the December 2010 flash flood and the Karun-4 Dam’s impoundment revealed previously unexplored dimensions of erosion, deposition, and channel dynamics. Large bank migrations and flood-event-related asymmetric bank erosions were realized; impoundment of this dam caused ultimate variations within a radius of 21 km in geometrical status. It remarkably identifies distinct phases of instability and stabilization in the period of filling, which is important to understand sediment transport and river regulation in extreme anthropogenic intervention. The general sinuosity trends underlined the differential response of the reaches, identifying the second and third intervals as those most sensitive to hydrological and structural controls. The paper uses remote sensing to bring together temporal dynamics of extremes with spatial scales of dam-induced geomorphic modification. This would add value to the current understanding and management of river systems undergoing rapid hydrological and structural alteration and contribute to the international debate on the sustainable development of water resources and riverine ecosystem resilience.
期刊介绍:
The Journal of Hydrology publishes original research papers and comprehensive reviews in all the subfields of the hydrological sciences including water based management and policy issues that impact on economics and society. These comprise, but are not limited to the physical, chemical, biogeochemical, stochastic and systems aspects of surface and groundwater hydrology, hydrometeorology and hydrogeology. Relevant topics incorporating the insights and methodologies of disciplines such as climatology, water resource systems, hydraulics, agrohydrology, geomorphology, soil science, instrumentation and remote sensing, civil and environmental engineering are included. Social science perspectives on hydrological problems such as resource and ecological economics, environmental sociology, psychology and behavioural science, management and policy analysis are also invited. Multi-and interdisciplinary analyses of hydrological problems are within scope. The science published in the Journal of Hydrology is relevant to catchment scales rather than exclusively to a local scale or site.