Real-time comparisons with the ionosonde network

For current results click on the station location on the map or on the station name in the list:

Currently, the real-time (or near real-time) ionosonde data from the global network is available on-line at the Space Environment Center WWW-server as monthly and daily files. The UAF EPPIM domain (Figure on top) incorporates locations of fifteen ionosondes from this network, while two more sites are outside in a relatively close vicinity to the EPPIM mid-latitude boundary. Numerical emulation of the critical frequency (foF2, [MHz]) measurements is performed during the EPPIM forecasting real-time run. Forecasted foF2 are evaluated using maximal value N_e[cm ^-3] of the simulated electron density profiles, selected from the 3-D electron density distribution for the corresponding times at the locations above:

N_e [cm ^-3] = 1.24*10⁴ * (foF2 [MHz] ) ²

Please follow links below for qraphical comparisons of the forecasts with the measured values. Accumulated monthly RMS errors (in %) are specfied for each location. Each daily graph on the monthly plot shows the following information: