Data Availability Statement
The ESA Swarm data can be obtained from the ESA server at
swarm-diss.eo.esa.int. The Swarm A 2 Hz E-field data is accessible at
swarm-diss.eo.esa.int/Advanced/Plasma_Data/2Hz_TII_Cross-track_Dataset/New_baseline/Sat_A.
Geomagnetic conditions and L1 information can be found at
https://omniweb.gsfc.nasa.gov.