Morphodynamic Controls on Thermal Plume Dispersion at River Mouths: Insights from Field Data and Numerical Modeling

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dc.authorid0000-0001-9245-8817
dc.contributor.authorHeidari, Naghmeh
dc.contributor.authorAksel, Murat
dc.contributor.authorYagci, Oral
dc.contributor.authorErbisim, Mehmet Yusuf
dc.contributor.authorCokgor, Sevket
dc.contributor.authorValyrakis, Manousos
dc.date.accessioned2026-01-24T12:26:36Z
dc.date.available2026-01-24T12:26:36Z
dc.date.issued2025
dc.departmentAlanya Alaaddin Keykubat Üniversitesi
dc.description.abstractThermal discharge from power plants causes significant concerns in aquatic environments. The purpose of this study is to evaluate how river mouth morphodynamics, particularly spit development and removal, influence the dispersion of thermal plumes. To achieve this, a case study was carried out at a coastal power plant in southwest T & uuml;rkiye, where thermal effluent is conveyed to the sea through a low-flow river. Field measurements combined with numerical modeling were used to analyze plume dynamics under varying spit configurations. Results revealed that the evolution of a spit on one side of the river mouth influences plume dispersion and redirects the mixing zone toward the opposite shoreline. Numerical simulations demonstrated that spit development reduces dispersion efficiency (by over 75%), while the physical removal of the spit significantly improves it, reducing temperature excess from 4-5 degrees C to 0-1 degrees C within the mixing zone, meeting safe environmental standards. The findings highlight the pivotal role of morphological changes in governing thermal discharge behavior and emphasize the importance of continuous monitoring and management strategies, such as periodic dredging, to ensure compliance with environmental regulations.
dc.description.sponsorshipHEC Engineering Ltd.
dc.description.sponsorshipThe authors acknowledge the support of HEC Engineering Ltd. and are appreciative for sharing the data used in this study.
dc.identifier.doi10.3390/w17182721
dc.identifier.issn2073-4441
dc.identifier.issue18
dc.identifier.scopus2-s2.0-105017373843
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.3390/w17182721
dc.identifier.urihttps://hdl.handle.net/20.500.12868/4802
dc.identifier.volume17
dc.identifier.wosWOS:001579562400001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherMdpi
dc.relation.ispartofWater
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20260121
dc.subjectthermal discharge
dc.subjectriver mouth morphodynamics
dc.subjectthermal plume
dc.subjectmixing zone
dc.subjectspit development
dc.titleMorphodynamic Controls on Thermal Plume Dispersion at River Mouths: Insights from Field Data and Numerical Modeling
dc.typeArticle

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