An update to a Regional Frequency Analysis to Global Extreme Sea Levels output data

This dataset contains local extreme water levels derived from the updated Global Coastal RFA. It represents extreme water levels across multiple return periods at approximately 1 km resolution along the global coastline (excluding Antarctica). The data combines contributions from tides, storm surge, waves, and regional mean sea level. Vertical reference is EGM08. Return levels represent present-day conditions, based on a 19-year period centred on 2011. Further methodological details are provided in the accompanying manuscript.本数据集包含经更新的全球海岸RFA（Global Coastal RFA）得到的局地极端水位，呈现了全球海岸线（南极洲除外）沿线约1公里分辨率下的多重现期极端水位分布。该数据融合了潮汐、风暴潮、海浪以及区域平均海平面的贡献分量，垂直基准面为EGM08。极端水位重现期值代表当前气候条件，其计算基于以2011年为中心的19年观测时段。更多方法学细节详见随附的研究手稿。