Coastal Change Potential Index Assessment (CPI) for Kenai Fjords National Park (kefj_shore)

A coastal change potential (CPI) was used to map the relative change potential of the coast to sea-level change within Kenai Fjords National Park in Alaska. The CPI 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 change, 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 CPI 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 change potential to the effects of sea-level change. The CPI and the data contained within this dataset provide an objective technique for evaluation and long-term planning by scientists and park managers.本研究采用海岸变化潜力指数（Coastal Change Potential, CPI），对阿拉斯加州基奈峡湾国家公园范围内海岸对海平面变化的相对变化潜力开展制图。CPI围绕海平面上升引发的海岸变化的物理贡献程度，对以下因子进行排序：地貌、区域海岸坡度、相对海平面变化速率、历史海岸线变化速率、平均潮差与平均有效波高。研究将各输入变量的排序结果进行合并，并为覆盖该公园的1分钟分辨率网格单元计算指数值。CPI可识别出海平面上升的物理影响可能最为显著的区域。该方法将海岸系统对变化的易受影响性与其适应环境变化的自然能力相结合，得到一种定量（尽管为相对定量）的评估该公园海岸对海平面变化影响的自然变化潜力的指标。本数据集包含的CPI及相关数据，可为科研人员与公园管理者提供一种用于评估及长期规划的客观技术手段。