Total Electron Content

Product Description

2D map showing near real-time ionospheric Total Electron Content (TEC) conditions. Map produced by combining regional GNSS data with the IRI-2007 ionospheric model driven by real-time foF2 observations from IPS ionosondes distributed throughout the region. The ionosphere is modelled as a thin shell at a fixed height of 400km. Slant delay from GPS satellite to GPS receiver can be estimated from this map, for ionospheric correction.

Target Users

Include industries relying on high-accuracy GNSS positioning: agriculture, surveying, construction, drilling.

Data Source

Australian GPS data

Cadence

Hourly

Product Description

A near-real-time comparison of the current (observed) regional TEC map with that of the Klobuchar ionospheric model using the latest coefficients broadcast by GPS satellites. The Klobuchar model is widely used to correct for the ionosphere in single frequency GPS applications, and hence the difference between the observed and modelled TEC is an indicator of the degree to which the ionospheric effect has been corrected for in single frequency GPS applications.

Target Users

Key product users include industries relying on high-accuracy GNSS positioning: agriculture, surveying, construction, drilling.

Data Source

Australian GPS data

Cadence

Hourly