Idealized cross-shore XBeach simulations of storm-induced barrier island change with varying subaerial profile and sediment mobility characteristics

Six thousand, four hundred and fourty four (6,444) two-dimensional, cross-shore computational simulations were carried out with the open computational model XBeach (Roelvink et al., 2009, Coastal Engineering; https://oss.deltares.nl/web/xbeach/) to investigate the influence of subaerial barrier-island profile shape and sediment mobility on barrier-island morphological response during coastal storms; results are presented in Irish et al. (2024; DOI: 10.1061/JWPED5/WWENG-2047). All simulations were forced at the offshore boundary (25-m depth) with (1) a 6-hr sinusoid storm surge timeseries varying from 1 m, Mean Sea Level (MSL) up to the provided Peak Surge value then returning to 1 m and (2) JONSWAP wave spectra with significant wave height and peak period respectively of 8 m and 10 s. Initial barrier island profiles, final XBeach-simulated barrier island profiles, varied XBeach input parameters, and output parameters calculated from the initial and final profiles are provided herein. Three sediment grain size distributions were considered, with distribution specified by median and 90th percentile, respectively: (0.2 mm, 0.3 mm), (0.4 mm,0.6 mm), and (0.6, 0.8 mm). All other XBeach input parameters were set to their default values. Four csv files are included within the zipped archive XBeachInputOutput_Irish_etal2023.zip, as discussed below.<br>Related research paper citation:Irish, J. L., Cheng, W., Weiss, R., Patch, S. M., Beever, M. A. (2024). Influence of belowground biomass on barrier-island evolution during storms: A computational parameter study. DOI: 10.1061/JWPED5/WWENG-2047<br>

本研究共开展了6444组二维跨岸数值模拟，采用开源数值模型XBeach（Roelvink等，2009，《Coastal Engineering》；https://oss.deltares.nl/web/xbeach/），旨在探究陆上障壁岛剖面形态与泥沙活动性对海岸风暴期间障壁岛地貌响应的影响，相关研究结果发表于Irish等（2024）的工作中（DOI: 10.1061/JWPED5/WWENG-2047）。
所有模拟均于离岸边界（水深25米）处施加两类强迫条件：(1) 时长6小时的正弦型风暴潮过程序列，其水位从平均海平面（Mean Sea Level, MSL）1米起涨至给定的风暴潮峰值，随后回落至1米；(2) 有效波高8米、峰值周期10秒的JONSWAP波浪谱。
本数据集包含初始障壁岛剖面、XBeach模拟得到的最终障壁岛剖面、设置为不同取值的XBeach输入参数，以及基于初始与最终剖面计算得到的输出参数。本次研究共考虑3组泥沙粒径分布，分别以中值粒径和第90百分位粒径表征：(0.2 mm, 0.3 mm)、(0.4 mm, 0.6 mm) 及 (0.6 mm, 0.8 mm)。其余所有XBeach输入参数均采用默认值。
压缩归档文件XBeachInputOutput_Irish_etal2023.zip中共包含4个CSV文件，详见下文。相关研究论文引用信息如下：Irish, J. L., Cheng, W., Weiss, R., Patch, S. M., Beever, M. A. (2024). 风暴过程中地下生物量对障壁岛演化的影响：一项数值参数化研究. DOI: 10.1061/JWPED5/WWENG-2047