Preliminary results of simultaneous recording of auroral and geomagnetic pulsations at the ISTP SB RAS station Istok
Author:
Белецкий Александр1, Beletsky Aleksandr2, Рахматулин Равиль1, Rakhmatulin Ravil2, Сыренова Татьяна1, Syrenova Tatyana2, Васильев Роман1, Vasilyev Roman2, Михалев Александр1, Mikhalev Aleksandr2, Пашинин Александр1, Pashinin Aleksandr2, Шиокава К.3, Shiokawa K.4, Нишитани Н.3, Nishitani N.4
Affiliation:
1. Институт солнечно-земной физики СО РАН 2. Institute of Solar Terrestrial Physics SB RAS 3. Институт исследования околоземного пространства, Университет Нагойя 4. Institute for Space–Earth Environmental Research, Nagoya University
Abstract
The paper presents the results on first synchronous observations of variations in auroral luminosity and geomagnetic field, made with high temporal resolution at the ISTP SB RAS high-latitude station Istok (70° N, 88° E) in September–December 2018. Auroras were recorded with all-sky camera, pulsations in the auroras were recorded by a photometer in four spectral ranges with silicon photomultipliers. Continuous monitoring of geomagnetic pulsations was performed using a LEMI-30 three-component induction magnetometer.
Both synchronous bursts of auroras and magnetic field pulsations, as well as disturbances of auroras, not accompanied by disturbances in the geomagnetic field, were observed. We note that the photometer clearly recorded short-period (~20 min) variations in in auroral luminosity. At the same time, some instability of the photometer signal level occurred at sufficiently long time intervals.
In the photometer data, there are powerful signal bursts, probably of a hardware nature. Nevertheless, the temporary distribution analysis of the registration moments (registration frequency) of signal bursts indicates the possible dependence of the burst registration frequency on the geomagnetic activity level.
Publisher
Infra-M Academic Publishing House
Subject
Space and Planetary Science,Atmospheric Science,Geophysics
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