TEC Regional Map

Please Note:We are aware of issues with the TEC maps on this page. These plots are not functioning correctly. A fix is currently being investigated.

Updates: Every 15 minutes

Latest observations

(click for full-sized image)

Model accuracy

(click for full-sized image)

Your browser has javascript disabled. With javascript enabled you would see control buttons here to enable viewing up the last 3 days of TEC map images interactively.

The map above shows a near real-time ionospheric Total Electron Content (TEC) map produced by combining real time GPS data and ASWFC ionosonde foF2 observations with the IRI-2007 ionospheric model. The last 3 days of maps can be viewed using the control buttons underneath the above image.

To view the raw GPS TEC data used to construct the map, click on the thumbnail image in the top right of the screen. An estimate of the map accuracy is also available in real time and can be seen by clicking on the second thumbnail image to the right of the main map. More details on the mapping procedure can be found in About TEC Mapping.

The map shows colour contours of TEC in units of TECU (1 TECU = 10¹⁶electrons/m²).