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Multiple discrete-energy ion bands observed by the Polar satellite in the inner magnetosphere on 9 Febru- ary 1998 were investigated by means of particle simulation with a

A case study objectively selected by means of a rotated principal component analysis over the diabatic field is analyzed to test the proposed parametrization.. This study highlights

The assumptions are that substorms expansions are the unloading of magnetic energy stored in the tail and that of the energy thus unloaded more goes into the ionosphere as Joule

Time evolution of the (NO) mixing ratio in the model box: 1, narrow plume; 2, basic, 3, wide plume, and circles, measured (NO) in cross section of various exhaust plumes over

Two conclusions are reached: (1) with an optimal set of solar-wind data available, the AE predictions are not markedly improved by the Dst input, but (2) the AE predictions are

Thermal, pressure and wind fields at ground level in the area of the Italian base at Terra Nova Bay, Victoria Land, Antarctica, as observed by a network of automatic weather

We ®nd, for instance, that in cases where the electron temperature is striated along B0 and low frequency waves (x  Xci) are excited in this environ- ment, for instance by a

From comparison of ground observations of auroral forms with meridional pro®les of particle ¯ux measured simultaneously by the low-altitude NOAA satellites above the ground