Juan Torres-Córdoba , Arnoldo Valle-Levinson , Vladimir G. Toro-Valencia , Yuley Cardona , Juan F. Paniagua-Arroyave , Maria C. Aguirre-Pérez
{"title":"侧面有收缩的准矩形半封闭盆地的潮汐动力学","authors":"Juan Torres-Córdoba , Arnoldo Valle-Levinson , Vladimir G. Toro-Valencia , Yuley Cardona , Juan F. Paniagua-Arroyave , Maria C. Aguirre-Pérez","doi":"10.1016/j.ecss.2025.109496","DOIUrl":null,"url":null,"abstract":"<div><div>Understanding tidal dynamics allows effective coastal management, as tides influence navigation, water quality, and ecosystem health. Tidal waves may undergo changes in amplitude and phase as they move through semi-enclosed basins, and their behavior depends on local conditions. This study seeks to determine the dominant tidal dynamics in a tropical, tectonic, semi-enclosed basin with a constriction at its flank, the Gulf of Urabá. Water-level data from five stations elucidated the spatial variability of the main tidal constituents (<span><math><mrow><msub><mi>K</mi><mn>1</mn></msub></mrow></math></span>, <span><math><mrow><msub><mi>M</mi><mn>2</mn></msub></mrow></math></span>, <span><math><mrow><msub><mi>O</mi><mn>1</mn></msub></mrow></math></span>, and <span><math><mrow><msub><mi>N</mi><mn>2</mn></msub></mrow></math></span>). The Gulf exhibits a mixed, primarily diurnal tidal regime, with amplification: semidiurnal constituents (<em>M</em><sub><em>2</em></sub> and <em>N</em><sub><em>2</em></sub>) amplify by about 21.7 %, while diurnal constituents (<em>K</em><sub><em>1</em></sub> and <em>O</em><sub><em>1</em></sub>) increase between 1 % and 10 %. An analytical model further explores these results. The model incorporates the effects of bottom friction and channel geometry. Our findings indicate that the mild tidal amplification is linked to nearly frictionless conditions and coastline convergence. Thus, findings provide insights into the complex tidal dynamics of semi-enclosed basins, advancing understanding of tidal hydrodynamics that shape the Gulf of Urabá and similar coastal systems.</div></div>","PeriodicalId":50497,"journal":{"name":"Estuarine Coastal and Shelf Science","volume":"325 ","pages":"Article 109496"},"PeriodicalIF":2.6000,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Tidal dynamics in a quasi-rectangular semi-enclosed basin with a constriction at its flank\",\"authors\":\"Juan Torres-Córdoba , Arnoldo Valle-Levinson , Vladimir G. Toro-Valencia , Yuley Cardona , Juan F. Paniagua-Arroyave , Maria C. Aguirre-Pérez\",\"doi\":\"10.1016/j.ecss.2025.109496\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Understanding tidal dynamics allows effective coastal management, as tides influence navigation, water quality, and ecosystem health. Tidal waves may undergo changes in amplitude and phase as they move through semi-enclosed basins, and their behavior depends on local conditions. This study seeks to determine the dominant tidal dynamics in a tropical, tectonic, semi-enclosed basin with a constriction at its flank, the Gulf of Urabá. Water-level data from five stations elucidated the spatial variability of the main tidal constituents (<span><math><mrow><msub><mi>K</mi><mn>1</mn></msub></mrow></math></span>, <span><math><mrow><msub><mi>M</mi><mn>2</mn></msub></mrow></math></span>, <span><math><mrow><msub><mi>O</mi><mn>1</mn></msub></mrow></math></span>, and <span><math><mrow><msub><mi>N</mi><mn>2</mn></msub></mrow></math></span>). The Gulf exhibits a mixed, primarily diurnal tidal regime, with amplification: semidiurnal constituents (<em>M</em><sub><em>2</em></sub> and <em>N</em><sub><em>2</em></sub>) amplify by about 21.7 %, while diurnal constituents (<em>K</em><sub><em>1</em></sub> and <em>O</em><sub><em>1</em></sub>) increase between 1 % and 10 %. An analytical model further explores these results. The model incorporates the effects of bottom friction and channel geometry. Our findings indicate that the mild tidal amplification is linked to nearly frictionless conditions and coastline convergence. Thus, findings provide insights into the complex tidal dynamics of semi-enclosed basins, advancing understanding of tidal hydrodynamics that shape the Gulf of Urabá and similar coastal systems.</div></div>\",\"PeriodicalId\":50497,\"journal\":{\"name\":\"Estuarine Coastal and Shelf Science\",\"volume\":\"325 \",\"pages\":\"Article 109496\"},\"PeriodicalIF\":2.6000,\"publicationDate\":\"2025-08-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Estuarine Coastal and Shelf Science\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0272771425003749\",\"RegionNum\":3,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MARINE & FRESHWATER BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Estuarine Coastal and Shelf Science","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0272771425003749","RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MARINE & FRESHWATER BIOLOGY","Score":null,"Total":0}
Tidal dynamics in a quasi-rectangular semi-enclosed basin with a constriction at its flank
Understanding tidal dynamics allows effective coastal management, as tides influence navigation, water quality, and ecosystem health. Tidal waves may undergo changes in amplitude and phase as they move through semi-enclosed basins, and their behavior depends on local conditions. This study seeks to determine the dominant tidal dynamics in a tropical, tectonic, semi-enclosed basin with a constriction at its flank, the Gulf of Urabá. Water-level data from five stations elucidated the spatial variability of the main tidal constituents (, , , and ). The Gulf exhibits a mixed, primarily diurnal tidal regime, with amplification: semidiurnal constituents (M2 and N2) amplify by about 21.7 %, while diurnal constituents (K1 and O1) increase between 1 % and 10 %. An analytical model further explores these results. The model incorporates the effects of bottom friction and channel geometry. Our findings indicate that the mild tidal amplification is linked to nearly frictionless conditions and coastline convergence. Thus, findings provide insights into the complex tidal dynamics of semi-enclosed basins, advancing understanding of tidal hydrodynamics that shape the Gulf of Urabá and similar coastal systems.
期刊介绍:
Estuarine, Coastal and Shelf Science is an international multidisciplinary journal devoted to the analysis of saline water phenomena ranging from the outer edge of the continental shelf to the upper limits of the tidal zone. The journal provides a unique forum, unifying the multidisciplinary approaches to the study of the oceanography of estuaries, coastal zones, and continental shelf seas. It features original research papers, review papers and short communications treating such disciplines as zoology, botany, geology, sedimentology, physical oceanography.