Surfzone-beach-dune interactions on the Chinese coasts

IF 2.6 3区地球科学 Q2 GEOSCIENCES, MULTIDISCIPLINARY

Marine Geology Pub Date : 2025-01-16 DOI:10.1016/j.margeo.2025.107480

Wei Tian , Yuxiang Dong , Shuyi Fu , Shaoyun Zhang , Dequan Huang , Lin Yang

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引用次数: 0

Abstract

Wave-beach-dune interactions are essential in investigating coastal aeolian landforms and have attracted decades of research effort. As the conceptual models were proposed and improved, case studies have been explored in-depth, indicating that beach and dune interactions exhibit significant spatial heterogeneity across tidal and wave environments. In this study, sixty-five coastal dune systems along China's coasts are investigated to explore the variability of surfzone-beach-dune interactions along the Chinese coasts and the underpinning mechanisms. A dataset comprising wave height, tidal range, Drift Potential, and beach-dune morphology is established based on interpretations of historical topographical and bathymetric maps, field survey investigations, and monitoring data for waves, tides, and winds. Classifications of surfzone/beach morphodynamics and dune morphology relationships at macro-, meso-, and micro-tide levels are presented, with mechanisms clarified through linear regression analysis between dune height and various environmental variables. Our results show that modal surfzone-beach states in the studied sites are correlated with dune sizes. Spring tidal range influences surfzone-beach state by providing a potentially greater storage space for aeolian sediment transport as tidal range increases. Wave energy acts as a clear driver of onshore sediment transport, with higher wave energy and more dissipative surfzone states correlated with greater sediment supply. Additionally, shoreline orientation and exposure to onshore winds control the occurrences of foredunes. The outcomes of this work provide an overview on the relationships between surfzone/beach and dune systems across the different tidal regimes along Chinese coast. Our dataset and results will provide a scientific basis for evaluating the vulnerability of dune system to hazards impacting the coasts.

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来源期刊

Marine Geology 地学-地球科学综合

CiteScore

6.10

自引率

6.90%

发文量

175

审稿时长

21.9 weeks

期刊介绍： Marine Geology is the premier international journal on marine geological processes in the broadest sense. We seek papers that are comprehensive, interdisciplinary and synthetic that will be lasting contributions to the field. Although most papers are based on regional studies, they must demonstrate new findings of international significance. We accept papers on subjects as diverse as seafloor hydrothermal systems, beach dynamics, early diagenesis, microbiological studies in sediments, palaeoclimate studies and geophysical studies of the seabed. We encourage papers that address emerging new fields, for example the influence of anthropogenic processes on coastal/marine geology and coastal/marine geoarchaeology. We insist that the papers are concerned with the marine realm and that they deal with geology: with rocks, sediments, and physical and chemical processes affecting them. Papers should address scientific hypotheses: highly descriptive data compilations or papers that deal only with marine management and risk assessment should be submitted to other journals. Papers on laboratory or modelling studies must demonstrate direct relevance to marine processes or deposits. The primary criteria for acceptance of papers is that the science is of high quality, novel, significant, and of broad international interest.