Tide gauge data and information from tide, surge and ocean models have been used to calculate and validate the Gumbel scale parameters of extreme sea level distributions along the world coastline. The inclusion of ocean model information is found to result in significantly improved correspondence between observed and modelled scale parameters to that obtained using tide and surge model information alone. The scale parameters so obtained are shown to be consistent with findings reported previously, such as in assessments of the Intergovernmental Panel on Climate Change. However, the considerably improved provision of scale parameters along the coast means that coastal planners, and others concerned with impacts of sea level rise, can now undertake more complete investigations of the likely increase in sea level exceedance frequencies. In addition, coastal engineers will have access to more reliable estimates of the ‘sea level allowances’ needed to design defences for protecting coastal populations.

来自潮汐、潮汐和海洋模型的潮位计数据和信息已被用于计算和验证世界海岸线极端海平面分布的 Gumbel 尺度参数。发现包含海洋模型信息可以显着改善观测和模拟的比例参数与单独使用潮汐和浪涌模型信息获得的比例参数之间的对应关系。如此获得的尺度参数与之前报告的结果一致，例如在政府间气候变化专门委员会的评估中。然而，沿海提供的比例参数的显着改善意味着沿海规划者和其他关注海平面上升影响的人现在可以对海平面超标频率可能增加的可能性进行更完整的调查。此外，