Intermediate data products for: Long-distance radiation of Rossby waves from the equatorial current system (Farrar et al., 2021, Journal of Physical Oceanography)

This repository contains some of the intermediate data products needed to reproduce the results in the Journal of Physical Oceanography article "Long-distance radiation of Rossby waves from the equatorial current system" by J.T. Farrar, T.S. Durland, S.R. Jayne, and J.F. Price.  Specifically, this material should allow reproduction of Figures 2 and 4-9 and all figures in the appendices.  This code and data files were used with Matlab Version 9.6.0.1072779 (R2019a).

Code to do the analysis and make the plots is here:  https://doi.org/10.5281/zenodo.4549917 and (possibly with updates) https://github.com/jtomfarrar/barotropic_wave_JPO_paper_2021

Matlab data files:

(1) SSH_grid_global_0.5deg_6deg_3day_Sx_gauss_fixed_inpaint.mat 

Gridded sea surface height product described in Appendix A of Farrar et al. (2021).  Gridding was done using a Gaussian smoother with half-power wavelengths of 6-deg×6-deg×17-days.  The input data used for the mapped product are sea surface height anomalies from the multi-mission, geophysically corrected, cross-calibrated, unfiltered along-track altimetry data produced and distributed by the Copernicus Marine and Environment Monitoring Service (CMEMS) (http://www.marine.copernicus.eu).

(2) aviso_pacific_nanland_out_truncated_2014product.mat

This file is a truncated version of the standard multi-satellite DUACS gridded SSH anomaly product (known as DUACS 2014).  The data were downloaded from Aviso in 2016; they are now available from CMEMS (http://www.marine.copernicus.eu).

(3) coast_tom.mat (coastline file that is a duplication of Matlab's included "coast.mat" file, but with variables renamed)
(4) twilight_colormap2.mat (taken from the python matplotlib twilight color map)
(5) ETOPO2v2c.mat (bathymetry data from https://www.ngdc.noaa.gov/mgg/global/etopo2.html, saved in Matlab format)

(6) ETOPO2v2c_1_deg_avg_whole_deg.mat (same as (5), but averaged to 1-deg-- only needed for land mask)

(7) H_L06_23_Ted_ray_tracing_bathy_final.mat (smoothed bathymetry for ray tracing, needed for Fig 2)

(8) ModelAmpPhase_IandR.mat

Amplitude and phase of equlilbrated (statistically steady state) barotropic model run (see text and appendix of paper).