DynaRev - Dynamic Coastal Protection: Resilience of Dynamic Revetments Under Sea Level Rise

This dataset contains processed data from the DynaRev experiments carried out in the Large Wave Flume (Grosser Wellenkanal, GWK) from 14-08-2017 to 29-09-2017 as a Transnational Access project within the EU funded project HYDRALAB+ (654110). The dataset provided under this DOI includes the post-processed data detailed in the article submitted to Scientific Data titled "High-resolution, prototype-scale laboratory measurements of nearshore wave processes and morphological evolution of a sandy beach with and without a dynamic cobble berm revetment" The overall aim of this project was to construct a prototype-scale beach and investigate the response of the beach to a rising sea level and storms with and without a cobble berm dynamic revetment structure (a gravel or shingle ridge placed around the wave runup limit). The response of two beach configurations was investigated under erosive wave conditions (Hs=0.8m, Tp=6.0s) and a total sea-level rise, SLR = 0.4 m: i) an unmodified sand beach with an initially plane slope of 1:15, and<br> ii) a natural beach profile with a dynamic revetment installed at the location of the natural berm before imposing SLR. SLR was imposed in 4 steps of 0.1 m with an initial water depth of 4.5 m above the flume base. Each phase ran for a total of 58 hours, after which resilience testing under storm waves and accretive conditions was undertaken for a further 12 hours in each case. The changing profile of the sand beach and revetment was monitored throughout the experiments using a traditional profiler and a LiDAR array. Additional hydrodynamic measurements were obtained at the location of the offshore sandbar to investigate the process of bar formation and migration with SLR. The model set-up, experimental program and data structure are explained in the submitted Scientific Data paper. The data files are organised as detailed in "DynaRev_Data_Structure.doc".本数据集包含2017年8月14日至9月29日期间，在欧盟资助的跨国访问项目HYDRALAB+（项目编号654110）框架下，于大型波浪水槽（Großer Wellenkanal，简称GWK）中开展的DynaRev实验的后处理数据。本数据集对应DOI所收录的后处理数据，详见投稿至《Scientific Data》、题为《High-resolution, prototype-scale laboratory measurements of nearshore wave processes and morphological evolution of a sandy beach with and without a dynamic cobble berm revetment》的论文。本项目的整体目标为搭建原型尺度海滩，探究有无动态砾石滩护岸（即布设于波浪爬高边界处的砾石/卵石脊）时，海滩对海平面上升（Sea Level Rise, SLR）与风暴事件的响应。研究针对两种海滩构型在侵蚀性波浪条件（有效波高（Significant Wave Height, Hs）=0.8m，谱峰周期（Peak Period, Tp）=6.0s）及总海平面上升SLR=0.4m工况下的响应展开： i) 初始平面坡度为1:15的未改性砂质海滩； ii) 在施加SLR前，于天然滩肩位置布设动态护岸的天然海滩剖面。 SLR分4级逐步施加，每级增量0.1m，水槽基底初始水深为4.5m。每个阶段总时长为58小时，随后各工况均开展12小时的风暴浪与淤积条件下的恢复力测试。整个实验过程中，采用传统剖面仪与激光雷达（LiDAR）阵列对砂质海滩与护岸的剖面变化进行全程监测。于近海沙坝位置增设水动力测量环节，以探究SLR作用下沙坝的形成与迁移过程。模型设置、实验方案与数据结构详见本研究提交至《Scientific Data》的上述论文。数据文件的组织方式详见《DynaRev_Data_Structure.doc》。