DOI: 10.5281/zenodo.11032322
title: 8 years of dayside Magnetospheric Multiscale (MMS) unsupervised clustering plasma regions classifications

description: These files contain the 1-minute resolution dataset (“labeled_sunside_data.csv”) and 15 minute or longer region list (“<region_name>_region_list.csv”) for Toy-Edens et al.'s Classifying 8 years of MMS Dayside Plasma Regions via Unsupervised Machine Learning. The 1-minute resolution file contains the rolled up 1-minute epoch, probe name (mms1, mms2, mms3, mms4), features that go into clustering and post-cleansing methods, spacecraft positions (in GSE, GSM, and magnetic latitude/local time), raw and cleansed clustering labels, and transition name. The 15+ minute region lists contain the name of the plasma region type, the probe name (mms1, mms2, mms3, mms4), and the start and stop epoch of  >= 15 minute epoch where the probe is solidly within that region. NOTE: for the 15+ minute region lists we are only looking for changes in plasma regions, this means that missing data may artificially inflate the duration of the epoch, we suggest looking at the full 1-minute resolution dataset to confirm the region timing.

We ask that if you use any parts of the dataset that you cite Toy-Edens et al.'s Classifying 8 years of MMS Dayside Plasma Regions via Unsupervised Machine Learning (DOI:10.1029/2024JA032431).

This work was funded by grant 2225463 from the NSF GEM program.

 

The following tables detail the contents of the described files:

labeled_sunside_data.csv description






Column Name



Description





Epoch



Epoch in datetime





 probe



MMS probe name





 ratio_max_width



Ratio of the width of the most prominent ion spectra peak (in number of energy channels) to max number of energy channels. See paper for more information





 ratio_high_low



Ratio of the mean of the log intensity of high energies in the ion spectra to the mean of the log intensity of low energies in the ion spectra. See paper for more information





 norm_Btot



Magnitude of the total magnetic field normalized to 50nT. See paper for more information





 small_energy_mean



The denominator in ratio_high_low





 large_energy_mean



The numerator in ratio_high_low





 temp_total



Total temperature from the DIS moments. See paper for more information





 r_gse_x



x position of the spacecraft in GSE





 r_gse_y



y position of the spacecraft in GSE





 r_gse_z



z position of the spacecraft in GSE





 r_gsm_x



x position of the spacecraft in GSM





 r_gsm_y



y position of the spacecraft in GSM





 r_gsm_z



z position of the spacecraft in GSM





 mlat



magnetic latitude of spacecraft





 mlt



magnetic local time of spacecraft





 raw_named_label



Raw cluster assigned plasma region label (allowed values: magnetosheath, magnetosphere, solar wind, ion foreshock)





 modified_named_label



Cleansed cluster assigned plasma region label (use these unless have a specific reason to use raw labels). See paper for more information





 transition_name



Transition names (e.g. quasi-perpendicular bow shock, magnetopause). See paper for more information





 

<region_name>_region_list.csv description






Column Name



Description





start



Starting Epoch in datetime





stop



Stopping Epoch in datetime





probe



MMS probe name





region



Cleansed cluster name associated with 1-minute resolution “modified_named_label”