ANALYZING SOLAR, COSMIC, AND GEOPHYSICAL EVENTS IN SEPTEMBER 2017 USING SHICRA SB RAS COMPLEX OBSERVATIONS
Journal Title: Solar-Terrestrial Physics - Year 2019, Vol 5, Issue 1
Abstract
We report the results of monitoring of cosmic rays and geomagnetic field along 210 magnetic meridians in Yakutia in the first half of September 2017. The energy spectrum of solar cosmic rays during Ground Level Enhancement in September 10, 2017 is estimated as J=3027E–1.99exp(–E/729 MeV). We present the results of the forecast and complex analysis of the magnetic storm on September 7–9, 2017 with Dst=–124 nT. The forecast lead time is about one day. We examine how the storm affected the electric potential and VLF signal propagation from RSDN-20 radio navigation stations. Irregular Pi3–Pi1 pulsations occurred during the September 8, 2017 magnetic storm from 12 to 20 UT. The pulsations were accompanied by variations in electrotelluric potentials and geomagnetic fields with the correlation coefficient between them ρ(E, H)=0.5÷0.9. The effects of the magnetic storm manifested themselves as an increase in the attenuation and a decrease in the phase delay of VLF radio signals.
Authors and Affiliations
Starodubtsev S. A. , Baishev D. G. , Grigoryev V. G. , Karimov R. R. , Kozlov V. I. , Korsakov A. A. , Makarov G. A. , Moiseev A. V.
Keywords
Related Articles
- EP ID EP700250
- DOI 10.12737/stp-51201903
- Views 108
- Downloads 0
STUDYING THE RELATIONSHIP OF LOCALIZATION PARAMETERS OF SOLAR SOURCES OF MAGNETIC CLOUDS WITH THEIR CHARACTERISTICS AND SUBSTORM ACTIVITY
We propose a method for determining location and orientation of extended solar sources of magnetic clouds, using coronagraph data and SOHO EIT/MDI images of the photosphere. To estimate the probability of formation of ma...
DISTURBED MAGNETOSPHERE ON NOVEMBER 7–8, 2004 AND VARIATIONS OF COSMIC RAY CUTOFF RIGIDITY: LATITUDE EFFECTS
We have studied the latitude behavior of cosmic ray cutoff rigidity and their sensitivity to Bz and By components of the interplanetary magnetic field and geomagnetic activity indices Dst and Kp for different phases of t...
Ultra low frequency emissions ranging from 0.1 to 3 Hz in circumpolar areas
We examine the characteristics of oscillations of two types in the high-frequency edge of the ULF range (0.1–3 Hz), serpentine emission (SE), and discrete frequency dispersed signals (DS). Oscillations of both the types...
DIAGNOSTICS OF PLASMA JETS IN THE SOLAR CORONA
The paper discusses the diagnostics of plasma jets in the solar corona with the use of data from modern space- and ground-based telescopes observing the Sun in the extreme ultraviolet (EUV) and micro- wave bands. We exam...
CONDITIONS FOR ARRIVAL OF SOLAR ENERGETIC PROTONS IN EARTH AFTER STRONG SOLAR FLARES
We analyze the Sun-to-Earth transport of energetic protons accelerated in solar flares. We use a model which assumes that protons move earthward in the Parker electromagnetic field. In this model, protons are shown to be...