THE HIGH-LATITUDE SYSTEM FOR ACOUSTIC WAVES AND ATMOSPHERIC ELECTRICITY MEASUREMENTS.

O.I.Shumilov (1,2), O.M. Raspopov (2), E.A. Kasatkina (1,2), and S.N. Kulichkov (3)

(1) Polar Geophysical Institute KSC RAS, Apatity, Murmansk Region, 184200 Russia
(2) SPbF IZMIRAN, P.O. Box 188, 191023 St.-Petersburg, Russia, oleg@or6074.spb.edu
(3) Institute of Physics of the Atmosphere RAS, Pyzhevsky per. 3, 109017 Moscow, Russia

The description of new instrumental system included acoustic waves and atmospheric electricity measurements is presented. The system locates in the high-latitude near Apatity city (66.5oN, 33.4oE) at Kola peninsula (Russia) and was installed in 2001. The main reason for installation of the equipment is to study the troposphere-middle atmosphere-ionosphere interaction. The recording of the signals carries out continuously. Thus this system may use for continuously control of acoustic signals in the different frequency ranges. The preliminary processing of the record has shown the existence of variations of atmospheric pressure with 20-40 min periods. The estimation of periods and amplitude of the atmospheric pressure variations observed demonstrated that the source of the pressure variations in the mountain waves generated in the vicinity of the Khibiny mountains. The system was working during the "Kursk" submarine event. Any specific acoustic signals don't observed at the time of the event.