Ocean surface currents, SSH and SST from LLC4320, before and after Lagrangian filtering

This dataset comprises daily snapshots of horizontal velocity, sea surface height and sea surface temperature from LLC4320, a high resolution setup of the MITgcm, in the Agulhas region. We provide the unfiltered data, and the data after Lagrangian filtering as described in Jones, CS, Xiao, Q, Abernathey, RP and Smith, KS Separating balanced and unbalanced flow at the surface of the Agulhas region using Lagrangian filtering (preprint: https://doi.org/10.31223/X5D352 ). Lagrangian filtering is not applied to the sea surface temperature.

This dataset is not the dataset that was used to make the figures in Jones et al. (see https://doi.org/10.5281/zenodo.6574163), but a separate dataset that is meant to be used in future study. We have decided to make this dataset publicly available because it may be useful for machine learning, or for studies that investigate the dynamical equations that govern the sea surface height and horizontal velocity field.

unfilt_u_v_ssh_sst.nc contains unfiltered horizontal velocity, sea surface height and sea surface temperature

filt_u_v_ssh.nc contains horizontal velocity and sea surface height after Lagrangian filtering

This work was supported by NASA award 80NSSC20K1142.