Coastal Change Potential (CPI) Assessment of Apostle Islands National Lakeshore (apis_shore)

A coastal change potential index (CPI) was used to map the relative change potential of the coast to future lake-level change within Apostle Islands National Lakeshore in Wisconsin. The CPI ranks the following in terms of their physical contribution to lake-level change-related coastal change: geomorphology, regional coastal slope, rate of relative lake-level change, historical shoreline change rates, mean annual ice cover 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 lake-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 succeptibility to the effects of lake-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 Index，CPI），对美国威斯康星州使徒群岛国家湖岸范围内未来湖面变化引发的海岸相对变化潜力进行制图。该指数依据各因子对湖面变化相关海岸变化的物理贡献程度，对以下要素进行排序：地貌、区域海岸坡度、相对湖面变化速率、历史海岸线变化速率、年平均冰盖覆盖率及平均有效波高。将各输入变量的排序结果进行整合，并为覆盖该公园的1分钟格网计算得到指数值。该指数可识别出湖面上升可能产生最显著物理影响的区域。该方法将海岸系统对变化的易感性与其适应环境变化的自然能力相结合，生成了一套量化（尽管为相对量化）的指标，用以评估该公园受湖面变化影响的自然易感性。本数据集所包含的海岸变化潜力指数及相关数据，可为科学家与公园管理者开展评估及长期规划提供一套客观技术方法。