Finescale measurements of Kelvin-Helmholtz instabilities at a Kuroshio seamount

Data supporting the results presented in 'Finescale measurements of Kelvin-Helmholtz instabilities at a Kuroshio seamount', Journal of Physical Oceanography DOI 10.1175/JPO-D-24-0235.1 Fine-scale properties of Kelvin–Helmholtz (KH)-like shear instabilities on the trailing edge of a nonlinear lee wave generated by the Kuroshio impinging on a seamount were measured using a towed CTD chain, shipboard ADCP, and echosounder. Lee-wave vertical velocity amplitudes vary in phase with the upstream semidiurnal along-stream current. The instabilities are analogous to atmospheric billows induced by a recirculation on the trailing edge of mountain lee waves. A total of 135 KH billows were identified in a 4-day-long time series roughly 300 m downstream of the center of the lee wave. The KH billows have heights H=52+-11 m, widths L=162+-72 m, and aspect ratios H/L=0.39+-0.18. Positive reduced shear squared S2-4N2 (where S is the vertical shear magnitude and N is the ..., , # Data from: Finescale measurements of Kelvin-Helmholtz instabilities at a Kuroshio seamount Dataset DOI: [10.5061/dryad.pg4f4qs3b](https://doi.org/10.5061/dryad.pg4f4qs3b) ## Description of the data and file structure Data to accompany the article \"Fine-Scale Measurements of Kelvin–Helmholtz Instabilities at a Kuroshio Seamount\" (Journal of Physical Oceanography, DOI 10.1175/JPO-D-24-0235.1) by Anda Vladoiu, Ren-Chieh Lien, Eric Kunze, Barry Ma, Sebastian Essink, Yiing Jang Yang, Ming-Huei Chang, Sen Jan, Jia-Lin Chen, Kai-Chieh Yang, and Yu-Yu Yeh. Contact Anda Vladoiu ([[e-mail]](mailto:[e-mail])) for additional information. ### Files and variables #### File: supporting_data.zip The .zip archive contains .mat processed data files used in creating the figures in the article. Please see article for detailed data description and processing methods. Descriptions of each .mat file, corresponding to distinct figures, are below, with units in square brackets. Each file...,