Spatial-time simulation of the upper ionosphere reaction on geomagnetic disturbances Original Research Article

The response of the ionosphere on two geomagnetic storms, as appearing in the ionosonde network in the Northern hemisphere, is examined and compared with ionospheric storm simulations provided by the theoretical data assimilative model of the ionosphere (TDAMI). This is a first principles analytical theoretical ionospheric model that updates its input parameters (neutral species O, N2, O2 and vertical plasma drift) by real measurements of |oF2 and hmF2 (Kilifarska, Ouzounov, 2001). It is concluded that TDAMI model successfully describes the ionospheric disturbances and might even be used as a prognostic tool.