A dataset for comparing filtering methods used to wave and non-wave flow at the surface of the Agulhas region

This dataset comprises sea surface height (SSH) and velocity data at the ocean surface in two small regions near the Agulhas retroflection. The unfiltered SSH and a horizontal velocity field are provided, along with the same fields after various kinds of filtering, as described in the accompanying manuscript, <em>Using Lagrangian filtering to remove waves from the ocean surface velocity field</em><em> (</em>https://doi.org/10.31223/X5D352)<em>. </em>The code repository for this work is https://github.com/cspencerjones/separating-balanced . Two time-resolutions are provided: two weeks of hourly data and 70 days of daily data. Seventy_daysA.nc contains daily data for region A and Seventy_daysB.nc contains daily data for region B, including unfiltered, lagrangian filtered and omega-filtered velocity and sea-surface height. two_weeksA.nc contains hourly data for region A and two_weeksB.nc contains hourly data for region B, including unfiltered and lagrangian filtered velocity and sea-surface height. Note that region A has been moved in version 2 of this dataset. See the manuscript and code repository for more information. This work was supported by NASA award 80NSSC20K1142.本数据集包含厄加勒斯流折返（Agulhas retroflection）附近两个小区域的海面高度（sea surface height, SSH）与表层海洋流速数据。本数据集提供未滤波的海面高度场与水平流场，以及随附论文《使用拉格朗日滤波（Lagrangian filtering）去除海洋表层流速场中的波浪》（https://doi.org/10.31223/X5D352）中描述的各类滤波后对应场数据。本研究的代码仓库地址为https://github.com/cspencerjones/separating-balanced。 本数据集提供两种时间分辨率方案：两周逐小时数据与70天逐日数据。其中，Seventy_daysA.nc 包含区域A的逐日数据，Seventy_daysB.nc 包含区域B的逐日数据，涵盖未滤波、拉格朗日滤波及欧米伽滤波（omega-filtered）的流速与海面高度数据；two_weeksA.nc 包含区域A的逐小时数据，two_weeksB.nc 包含区域B的逐小时数据，涵盖未滤波与拉格朗日滤波的流速与海面高度数据。 请注意，本数据集的2.0版本中区域A已调整位置。更多详细信息请参阅随附论文与代码仓库。本研究受NASA项目编号80NSSC20K1142资助。