Real-time model of the Ionospheric Electric Fields 

Real-time Electric field 


Transfer function model 

Climatological Model 

Data & processing 




The equatorial ionospheric eastward electric field (EEF)  is predicted on a real-time basis using the solar wind data from the Advanced Composition Explorer (ACE) satellite.  The web application can also be used to calculate the EEF for all longitudes from 01-01-1995 to present.  The web application uses a transfer function model to predict the EEF variation from solar wind data and a climatological model to account for the quiet day variations of EEF. More details of the model and data processing are available with the links on the left side.

****ACE satellite data outages are affecting the real time part of this service. We are currently transitioning our interplanetary data source to NOAA's DSCOVR satellite. Sorry for your inconvenience.****