Source data for graphs and charts in Rivoire, L., Curbelo, J., and Linz, M., 2026, Tracking jet streams as Lagrangian objects, Commun. Earth Environ.

This dataset provides the source data needed to reproduce graphs and charts for the four figures found in the main text of: Rivoire, L., Curbelo, J., and Linz, M., 2026, Tracking jet streams as Lagrangian objects, Commun. Earth Environ.
Each file corresponds to a figure in the paper. Files are in MATLAB's native .mat format, produced with MATLAB 23.2.0.2485118 (R2023b) Update 6. See the documentation: https://www.mathworks.com/help/matlab/import_export/mat-file-versions.html. To read the files with Python:
from scipy.io import loadmat
data = loadmat('fig_1.mat')

All variables are given descriptive names, including which panel they correspond to in the figures. For example, in fig_1.mat, variable 'jet_left_panel_B' provides the jet axis for the left side of panel B. In fig_4.mat, variable 'KDE_F' is a MATLAB structure (for Python users, analogous to a list of dictionaries whose values are NumPy arrays) and provides the estimated probability density values for the corresponding x-values (the latitude or wind speed grid) in 'KDE_XF'. Within the structures, data for the Eulerian "wind-based" method are denoted with "W", data for the Lagrangian method are denoted with "M" (the "M" function), and data for the Eulerian "theta-based" method are denoted with "PT" (theta is Potential Temperature). See the full detail of variables and attributes at the end of this document.

Data from figure 2 panel C are not provided and can be more efficiently reproduced using equation (2) in the paper. This dataset is intended solely for figure reproduction and does not include the full underlying analysis pipeline or raw input data. All physical quantities use the same units and conventions as in the published figures (e.g., latitude in degrees, wind speed in m/s). Missing values are represented as NaNs.

Also see the full JetLag dataset: 10.5281/zenodo.16178219

Full detail of variables and attributes:
fig_1.mat
jet_extra 17x360 48960 double
jet_left_panel_B 1x360 2880 double
jet_left_panel_C 1x360 2880 double
jet_lon 1x360 2880 double
jet_right_panel_B 1x360 2880 double
jet_right_panel_C 1x360 2880 double
time_left_panel_B - 8 datetime
time_left_panel_C - 8 datetime
time_right_panel_B - 8 datetime
time_right_panel_C - 8 datetime
trajlat_1_panel_B 48x1 384 double
trajlat_1_panel_C 36x1 288 double
trajlat_2_panel_B 48x1 384 double
trajlat_2_panel_C 36x1 288 double
trajlon_1_panel_B 48x1 384 double
trajlon_1_panel_C 36x1 288 double
trajlon_2_panel_B 48x1 384 double
trajlon_2_panel_C 36x1 288 double
wind_lat 721x1 5768 double
wind_left_panel_B 1440x721 8305920 double
wind_left_panel_C 1440x721 8305920 double
wind_lon 1440x1 11520 double
wind_right_panel_B 1440x721 8305920 double
wind_right_panel_C 1440x721 8305920 double

fig_2.mat
M 181x360x6 3127680 double
jet_eulerian 1x360 2880 double
jet_lagrangian_mat 5x360 14400 double
jetlat_jetlag_DJF 1x13 104 double
jetlat_jetlag_JJA 1x13 104 double
jetlat_wind_DJF 1x7 56 double
jetlat_wind_JJA 1x7 56 double
jetlatstd_jetlag_DJF 1x13 104 double
jetlatstd_jetlag_JJA 1x13 104 double
jetlatstd_wind_DJF 1x7 56 double
jetlatstd_wind_JJA 1x7 56 double
lat_out 1x181 1448 double
lon_out 1x360 2880 double
t_start 1x1 8 double
tau_panel_B 1x6 48 double
tau_panel_D 1x13 104 double

fig_3.mat
PSD_jetlag 1x58440 467520 double
PSD_theta 1x58440 467520 double
PSD_wind 1x58440 467520 double
hov_jetlag_DJF 364x360 1048320 double
hov_jetlag_JJA 368x360 1059840 double
hov_wind_DJF 364x360 1048320 double
hov_wind_JJA 368x360 1059840 double
lat_jetlag 7309x1 58472 double
lat_theta 7309x1 58472 double
lat_wind 7309x1 58472 double
period 1x58440 467520 double
speed_jetlag 7309x1 58472 double
speed_theta 7309x1 58472 double
speed_wind 7309x1 58472 double
time - 116896 datetime
time_DJF - 2912 datetime
time_JJA - 2944 datetime

fig_4.mat
KDE_F 1x1 18528 struct
KDE_XF 1x1 18528 struct
jetfreq_diff_stj 180x360 518400 double
jetfreq_jetlag_pfj 180x360 518400 double
jetfreq_jetlag_stj 180x360 518400 double
jetfreq_wind_stj 180x360 518400 double
lat 1x180 1440 double
lon 1x360 2880 double