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A long-term dataset of topography and nearshore bathymetry at the macrotidal pocket beach of Porsmilin, France
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A long-term dataset of topography and nearshore bathymetry at the macrotidal pocket beach of Porsmilin, France
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Journal Article
A long-term dataset of topography and nearshore bathymetry at the macrotidal pocket beach of Porsmilin, France
2022
Overview
Long-term datasets documenting the evolution of coastal forms and processes, through the provision of recurring beach as well as shoreface morphological observations and accompanying time-series of environmental controls, remain difficult to collect and are rarely made available. However, they are increasingly needed to further our understanding of coastal change and to improve the models that will help planning what our future coast will be. This data descriptor presents the results of topographic and bathymetric surveys at Porsmilin, a macrotidal embayed beach situated in Brittany, northwest France. The Porsmilin beach survey program was launched in January 2003 by the Institut Universitaire Européen de la Mer (IUEM/Univ. Brest) and is continuing today in the framework of the French coastal observation service SNO-DYNALIT. The dataset contains over 16 years of monthly beach profile surveys and a large collection of repeated high-resolution subtidal and subaerial digital elevation models (DEMs). The dataset is accompanied by time-series of inshore waves and water levels, and enriched metadata, that will facilitate its future reuse in coastal research.Measurement(s)Beach topography • Nearshore bathymetryTechnology Type(s)RTK-GNSS • Terrestrial laser scanning • Digital photogrammetry • Multibeam echosounderFactor Type(s)ElevationSample Characteristic - EnvironmentshoreSample Characteristic - LocationBretagne Region
Publisher
Nature Publishing Group
Subject
