**The folder contains six subfolders:**
**ExtendedDataFiguresFiles** contains the polarisation analysis results necessary to reproduce extended data figures (ED) ED1, ED4, ED5, ED6, ED7, ED8. All these files are also contained in the component *Software for Figures*.
**ED2 ED3 ED9 ED10** contain the files necessary to reproduce the corresponding figures with Grapher.
**MainPaperFiles** contains the polarisation analysis results necessary to reproduce Figures 1, 2, 3.
In **ExtendedDataFiguresFiles** and **MainPaperFiles**, the title of each file corresponds to the time period when the data were recorded:
*Examples:*
2017_2009_stat.xls -> years 2009 and 2017
2018_stat.xls -> year 2018
2019_10_11_stat.xls -> October-November 2019
202001_stat.xls -> January 2020
20191202_stat.xls -> Day 02 December 2019.
*Structure of the excel files:*
First column: Name of the station
Second column: Azimuth between 0.2-1 Hz
Third column: Azimuth standard deviation between 0.2-1 Hz
Fourth column: Resultant length between 0.2-1 Hz
Fifth column: Name of the station
Sixth column: Azimuth between 0.2-1 Hz
Seventh column: Azimuth standard deviation between 1-5 Hz
Eight column: Resultant length between 1-5 Hz
