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

GPS

GLONASS

GLONASS

GALILEO

GALILEO

BEIDOU

BEIDOU

Earthquake

Earthquake

USGS Tsunami Watch

USGS Tsunami Watch

GDGPS Station

GDGPS Station

About 2017 Geomagnetic Storm

On September 7-8, 2017, a severe geomagnetic storm (Kp ~8) triggered severe ionospheric disturbances. These disturbances caused severe disruptions in satellite navigation and radio communication. The stations displayed here show data from September 6 to September 9, 2017. The noise level in the TEC time series changes drastically during the storm, especially in the high-latitude stations, whereas the mid-latitude and low-latitude stations are relatively less affected. Zoom out from the original view to be able to see four days of data and the relative noise levels.

link to GDGPS

Powered by the JPL Global Differential GPS (GDGPS) System