Sea-level observations provide information on a variety of processes occurring over different temporal and spatial scales that may contribute to coastal flooding and hazards. However, global research on sea-level extremes is restricted to hourly datasets, which prevent the quantification and analyses of processes occurring at timescales between a few minutes and a few hours. These shorter-period processes, like seiches, meteotsunamis, infragravity and coastal waves, may even dominate in low tidal basins. Therefore, a new global 1 min sea-level dataset – MISELA (Minute Sea-Level Analysis) – has been developed, encompassing quality-checked records of nonseismic sea-level oscillations at tsunami timescales (T<2 h) obtained from 331 tide-gauge sites (https://doi.org/10.14284/456, Zemunik et al., 2021b). This paper describes data quality control procedures applied to the MISELA dataset, world and regional coverage of tide-gauge sites, and lengths of time series. The dataset is appropriate for global, regional or local research of atmospherically induced high-frequency sea-level oscillations, which should be included in the overall sea-level extremes assessments.

中文翻译：

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Minute Sea-Level Analysis (MISELA)：高频海平面分析全球数据集

海平面观测提供了在不同时间和空间尺度上发生的可能导致沿海洪水和灾害的各种过程的信息。然而，全球对海平面极端事件的研究仅限于每小时数据集，这阻止了对几分钟到几小时之间时间尺度上发生的过程的量化和分析。这些较短周期的过程，如潮汐、气象海啸、次重力和海岸波，甚至可能在低潮汐盆地中占主导地位。因此，开发了一个新的全球 1 分钟海平面数据集——MISELA（分钟海平面分析），包括海啸时间尺度（T <2 h) 从 331 个测潮站获得 (https://doi.org/10.14284/456, Zemunik et al., 2021b)。本文描述了应用于 MISELA 数据集的数据质量控制程序、测潮站的世界和区域覆盖范围以及时间序列的长度。该数据集适用于大气引起的高频海平面振荡的全球、区域或局部研究，应包括在整体海平面极端评估中。