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Difference in Polar Atmospheric Optical Emissions Between Mid-Day and Night-Time Aurorasines, the [OII] lines at 3727-29A and 7320-30A as well as [NI] lines at 3466A and 5199-5201A are prominent. Unlike the night-time auroras, the cusp auroras are almost devoid of N.IP and N.2P bands. N.ING bands in mid-day auroras are probably enhanced through resonant scattering of sunlight by N.ions

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The Solar Wind-Magnetosphere-Ionosphere System: An Overviewdistinct plasma regions, features two important characteristics: (1) As one proceeds from the main particle, energy and momentum source on the sun through the solar wind, the magnetosheath, magnetosphere and ionosphere to the sinks in the neutral atmosphere, one observes an increasingly important fe

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Mapping Archaeological Landscapes from Spacean altitude of 100 km. Looking at Fig. 1, we see that the altitude extent of the middle atmosphere varies with latitude and season such that’, for example, the lower boundary of the middle atmosphere, the tropopause, is at about 17 km (about 80 mb) at the equator and at about 8 or 9 km at the pole (

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Information Epidemics and Social Networking,ectively transport the lighter and minor species from the warmer toward the cooler regions on the globe. Due to the abundance of atomic oxygen a back pressure develops which significantly dampens the wind velocities and increases the temperature contrast. During summer and under magnetically disturb

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,Epilogue — Revising Urban Geography,tric fields originating in the magnetosphere penetrate into the ionosphere and affect production, loss and transport of ionization there. Some of the polar F-region phenomena, as troughs, polar cap ionization etc. are discussed in the light of these processes.