Coastal Vulnerability Index (CVI) dataset for Cape Hatteras National Seashore (caha_shore)

A coastal vulnerability index (CVI) was used to map the relative vulnerability of the coast to future sea-level rise within Cape Hatteras National Seashore in North Carolina. 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），对北卡罗来纳州哈特拉斯角国家海岸区内海岸面对未来海平面上升的相对脆弱性进行制图。该指数基于各因子对海平面上升引发海岸变化的物理贡献程度，对以下指标进行分级：地貌（Geomorphology）、区域海岸坡度、相对海平面上升速率、历史海岸线变化速率、平均潮差以及平均有效波高（Mean Significant Wave Height）。将各输入变量的分级结果进行整合，并为覆盖该公园的1角分网格单元计算指数值。该CVI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敏感性与其适应环境变化的自然能力相结合，进而得到该公园受海平面上升影响的自然脆弱性的量化评估结果——尽管该结果为相对量化值。本海岸脆弱性指数及本数据集所包含的数据，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方法。