文章基本信息

标题：A Theory for Estuarine Delta Formation with Finite Beach Length under Sediment Supplied from the River
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作者：Duy, Dinh Van ; Tanaka, Hitoshi ; Larson, Magnus 等
期刊名称：Journal of Marine Science and Engineering
电子版ISSN：2077-1312
出版年度：2022
卷号：10
期号：7
页码：1-20
DOI：10.3390/jmse10070947
语种：English
出版社：MDPI AG
摘要：Analytical solutions for a one-line model for shoreline changes are employed to investigate the formation of two wave-dominated river delta coastlines, along with a small-scale laboratory experiment. Since the present analytical solution can be applied only to a river delta with infinite shorelines, a new analytical solution was developed to consider the effects of lateral boundaries to the evolution of delta coastlines. It was determined that two demarcations represented by the dimensionless times t* can be used to judge whether the lateral boundaries have affected the coastline evolution or not. After the successful application of a new analytical solution to the experimental data, the new analytical solution was applied to predict the formation and deformation of the shorelines of the Ombrone River and Funatsu River deltas. Results obtained from the analysis showed that the new analytical solution can be used to describe well the formation and deformation of finite river-delta shorelines. Based on the two demarcations as represented by the dimensionless time t*, the shorelines of the Ombrone River and Funatsu River deltas are classified as finite shorelines.
关键词：analytical solution; finite shorelines; river sediment; river delta; wave-dominated; formation; deformation