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.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

六千四百四十四（6,444）次二维，横剖面计算模拟实验采用开放计算模型XBeach（Roelvink等，2009年，《海岸工程学》；https://oss.deltares.nl/web/xbeach/）进行，旨在探讨海岸风暴期间，海底沙坝岛形态及沉积物流动性对沙坝岛形态反应的影响；研究结果详见Irish等（2024年；DOI：10.1061/JWPED5/WWENG-2047）。所有模拟实验均在离岸边界（25米深度）施加影响，包括：（1）时长为6小时的正弦波风暴潮时间序列，从1米平均海平面（MSL）升至所提供的最高潮位，然后降至1米；（2）JONSWAP波浪谱，其显著波高和峰值周期分别为8米和10秒。初始沙坝岛形态、最终XBeach模拟的沙坝岛形态、XBeach输入参数的变化以及从初始和最终形态计算得出的输出参数均在本研究中提供。考虑了三种沉积物粒径分布，分别以中位数和90百分位数指定：0.2毫米、0.3毫米；（0.4毫米、0.6毫米）；（0.6毫米、0.8毫米）。所有其他XBeach输入参数均设置为默认值。压缩包XBeachInputOutput_Irish_etal2023.zip中包含四个csv文件，具体讨论如下。相关研究论文引用：Irish, J. L., Cheng, W., Weiss, R., Patch, S. M., Beever, M. A.（2024年）。风暴期间地下生物量对沙坝岛演化的影响：计算参数研究。DOI：10.1061/JWPED5/WWENG-2047