Projected coastal flooding extents for 1-, 20-, and 100-year return interval storms and 0.00, +0.25, +0.50, +1.00, +1.50, +2.00, and +3.00 meter sea-level rise scenarios in the Hawaiian Islands

This data release provides flooding extent polygons based on sea-level rise and wave-driven total water levels for the coast of the most populated Hawaiian Islands of Oahu, Molokai, Kauai, Maui, and Big Island. Oceanographic, coastal engineering, ecologic, and geospatial data and tools were combined to evaluate the increased risks of storm-induced coastal flooding due to climate change and sea-level rise. We followed risk-based valuation approaches to map flooding due to waves and storm surge at 10-m2 resolution along these islands' coastlines for annual (1-year), 20-year, and 100-year return-interval storm events and +0.25 m, +0.50 m, +1.00 m, +1.50 m, +2.00 m, and +3.00 m sea-level rise scenarios.

本数据集发布提供了基于海平面上升与波浪驱动总水位的瓦胡岛(Oahu)、莫洛凯岛(Molokai)、考艾岛(Kauai)、毛伊岛(Maui)及夏威夷大岛(Big Island)海岸带的淹没范围多边形数据。本研究整合海洋学、海岸工程、生态学及地理空间相关数据与工具，以评估气候变化与海平面上升所加剧的风暴诱发海岸洪水风险。本研究采用基于风险的评估方法，针对上述群岛的海岸线，以10平方米的空间分辨率，绘制了年遇（1年一遇）、20年一遇、100年一遇三类重现期风暴事件，以及0.25米、0.50米、1.00米、1.50米、2.00米、3.00米共6种海平面上升情景下的波浪与风暴潮淹没范围。