Ионосферные явления-77: материалы наблюдений Поляр. геофиз. ин-та по проекту Междунар. исслед. магнитосферы за 1977г. (оперативно-информационный материал). Апатиты, 1978.

6 September la quiet. In daytime В and P1 layera are вееп, at night they disappeared. The fQP2 towards the night decreasea, but still remains measurable. During nights an additional ionization арреагеѳ in P-region. During the seoond decade of September (15 and 1 7 . U ) the disturbances arise which are liked to the simultaneous proton and electron precipitations! the absorption increases and has maximum near noon, the magnetic field is quiet or moderate disturbed, the geomagnetic pulsations IPDP are observed. During quiet period in the beginning of October E and P1 layers are seen in daytimej P1 layer is not clear.In quiet days in the beginning of November Бand PI layers are not seen. Near the beginning end the end of qiuet nights the value of f0?2 decreases and is near the lower limit of ionosonde scale. The unusual storms occur at the end of November and the beginning of December (25.XI and 10.XII). During the storm of 2.Ill the unusual aurora with red oxygen emissions are seen at morning, which may be connected with the soft particle precipitation. Storms are accompanied by anomalous formations in P-region which give the high frequency reflections. t The volume is based on ionosonde measurements at Murmansk carried out by Yu»G. Mizun, riometer observations at Loparskaya carried out by W.Ya.Oorelow and R.S.Kukushkina*. The radar observations at et.Molodezhnaya were carried by Yu.N.Losev (January-February) and O.B.Kotelnikov (the rest April-December). The description of ionospheric behaviour іѳ done by B.E.Brunelli and N.V.Shulgina. The volume is prepared to publication by L.V.Kovalevskaya.