2017 Geomagnetic Storm Example
The map and station plots below are a snapshot of the Geomagnetic Storm on September 7-8, 2017. The TEC data cover four days and may therefore take some time to load. For the near-real-time map and station data, go to the home page.
How to Navigate
Draw rectangle on map to select stations, zoom in/out to focus on regions, then click on the station in the sidebar to see realtime slant TEC.
Legend
GPS
GLONASS
GALILEO
BEIDOU
Earthquake
USGS Tsunami Watch
GDGPS Station