A method of separating linear internal wave and vortical mode energies using shipboard ADCP velocity measurements

We present a method to quantify total, horizontal kinetic and available potential energies of linear internal waves (IW) and vortical mode (VM) using only two-dimensional (2D) (depth, along-track distance) measurements of horizontal velocity, such as those commonly taken by oceanic shipboard ADCP (SADCP). Previous IW and VM energy decomposition methods (Bühler et al. 2014, 2017, and their extensions) require both velocity and buoyancy measurements. Applying Helmholtz decomposition, 2D horizontal kinetic energy wavenumber (kx , kz) spectra are projected onto divergent Kdiv and rotational Krot components. IW total energy spectrum is EIW = 2Kdiv . VM total energy is EVM=1/Bu[(1+Bu)Krot-Kdiv], where Bu is Burger number with N and f buoyancy and inertial frequencies, kh horizontal wavenumber magnitude and kz vertical wavenumber. IW and VM horizontal kinetic energy (K) and available potential energy (P) can be inferred from EVM and EIW as functions of Bu. The proposed method, derived directly..., , # Data from: A method of separating linear internal wave and vortical mode energies using shipboard ADCP velocity measurements

Dataset DOI: [10.5061/dryad.70rxwdcc9](https://doi.org/10.5061/dryad.70rxwdcc9)

## Description of the data and file structure

Data to accompany the article \"A Method of Separating Linear Internal Wave and Vortical Mode Energies Using

Shipboard ADCP Velocity Measurements\" (Journal of Atmospheric and Oceanic Technology, DOI: 10.1175/JTECH-D-25-0076.1) by Anda Vladoiu and Ren-Chieh Lien.

### File: SupportingData.zip

**Description:** 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 contains structures pertaining to variables plotted in each figure panel, named in alphabetical order.

Contact Anda Vladoiu ([[e-mail]](...,