BetaEddyOne: A long-lived 1.5 layer quasigeostrophic eddy on a beta plane, with Lagrangian particles

<p>BetaEddyOne is a yearlong simulation of a large, nonlinear oceanic eddy under 1.5 layer quasigeostrophic dynamics on a beta plane, initially located at 24˚N. &nbsp;The simulation is run at 512 x 256 resolution and&nbsp;is seeded with Lagrangian particles with one particle per&nbsp;grid point.&nbsp;</p> <p>This simulation is indended for use as a common test case for eddy-related diagnostics and analysis methods. &nbsp;It approximately replicates the eddy analyzed in detail in&nbsp;Early, Samelson, and Chelton (2011), <a href="https://doi.org/10.1175/2011JPO4601.1">https://doi.org/10.1175/2011JPO4601.1</a>. &nbsp;The simulation&nbsp;was created using the WaveVortexModel (Early, Lelong, and Sundermeyer, 2021,&nbsp;<a href="https://doi.org/10.1017/jfm.2020.995">https://doi.org/10.1017/jfm.2020.995</a>), the code for which is available on GitHub at&nbsp;<a href="https://github.com/Energy-Pathways-Group/GLOceanKit">https://github.com/Energy-Pathways-Group/GLOceanKit</a>. &nbsp;This particular simulation was created for use in the paper</p> <p>Lilly, J. M., J. Feske, B. Fox-Kemper, and J. J. Early (2024). Integral theorems for the gradient of a vector field, with a fluid dynamical application. <em>Proceedings of the Royal Society of London, Series A</em>. <strong>480</strong> (2293): 20230550, 1&ndash;30. <a href="https://doi.org/10.1098/rspa.2023.0550">doi 10.1098/rspa.2023.0550</a>.</p> <p>The figure shows a snapshot of the model's vertical vorticity.&nbsp;</p> <p>&nbsp;</p>