Coastal Vulnerability Index (CVI) for Fire Island National Seashore (fiis_shore)

A coastal vulnerability index (CVI) was used to map the relative vulnerability of the coast to future sea-level rise within Fire Island National Seashore in New York. The CVI ranks the following in terms of their physical contribution to sea-level rise-related coastal change: geomorphology, regional coastal slope, rate of relative sea-level rise, historical shoreline change rates, mean tidal range and mean significant wave height. The rankings for each input variable were combined and an index value calculated for 1-minute grid cells covering the park. The CVI highlights those regions where the physical effects of sea-level rise might be the greatest. This approach combines the coastal system's susceptibility to change with its natural ability to adapt to changing environmental conditions, yielding a quantitative, although relative, measure of the park's natural vulnerability to the effects of sea-level rise. The CVI and the data contained within this dataset provide an objective technique for evaluation and long-term planning by scientists and park managers.本研究采用海岸脆弱性指数（Coastal Vulnerability Index, CVI），对纽约州火岛国家海岸公园内海岸针对未来海平面上升的相对脆弱性开展制图工作。该指数依据各因子对海平面上升相关海岸变化的物理贡献程度，对以下要素进行评级：地貌特征、区域海岸坡度、相对海平面上升速率、历史海岸线变化速率、平均潮差与平均有效波高。研究团队将各输入变量的评级结果进行整合，并为覆盖整个公园的1分钟分辨率网格单元计算指数值。该指数可标识出海平面上升物理影响最为显著的区域。本方法将海岸系统的变化易感性与其适应环境变化的自然能力相结合，得到一套量化（尽管为相对量化）的公园针对海平面上升影响的自然脆弱性评估指标。该指数与本数据集包含的数据，可为科研人员与公园管理者提供一套用于评估与长期规划的客观技术手段。