The relationship between geomagnetic indices and the interplanetary medium parameters in magnetic storm main phases during CIR and ICME events

Boroyev, R. N.; Vasiliev, Mikhail; Otsuka, Yuichi

doi:10.1016/j.jastp.2020.105290

Cited by 14 publications

(9 citation statements)

References 25 publications

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“…Consequently, Earth-Sun and southward IMF orientations can lead to strong geomagnetic activities. This result is consistent with previous studies by Schatten & Wilcox (1967); Boroyev et al (2020). The Sun-Earth, northward, and ecliptic IMF orientations lead to K p ≤ 4 if |B IMF | = 250 nT, thus the geomagnetic activity that is caused is relatively quiet.…”

Section: Open and Closed Field Line Boundary For Different Imf Orient...supporting

confidence: 92%

MHD study of the planetary magnetospheric response during extreme solar wind conditions: Earth and exoplanet magnetospheres applications

Varela

Brun

Strugarek

et al. 2022

A&A

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Context. The stellar wind and the interplanetary magnetic field modify the topology of planetary magnetospheres. Consequently, the hazardous effect of the direct exposition to the stellar wind, for example, regarding the integrity of satellites orbiting the Earth or the habitability of exoplanets, depends upon the space weather conditions. Aims. The aim of the study is to analyze the response of an Earth-like magnetosphere for various space weather conditions and interplanetary coronal mass ejections. The magnetopause standoff distance, the open-close field line boundary, and plasma flows toward the planet surface are calculated. Methods. We used the magnetohydrodynamics code PLUTO in spherical coordinates to perform a parametric study of the dynamic pressure and temperature of the stellar wind as well as of the interplanetary magnetic field intensity and orientation. The range of the parameters we analyzed extends from regular to extreme space weather conditions, which is consistent with coronal mass ejections at the Earth orbit for the present and early periods of the solar main sequence. In addition, implications of sub-Afvénic solar wind configurations for the Earth and exoplanet magnetospheres were analyzed. Results. The direct precipitation of the solar wind at the Earth dayside in equatorial latitudes is extremely unlikely even during super coronal mass ejections. On the other hand, for early evolution phases during the solar main sequence, when the solar rotation rate was at least five times faster (<440 Myr), the Earth surface was directly exposed to the solar wind during coronal mass ejections. Today, satellites at high, geosynchronous, and medium orbits are directly exposed to the solar wind during coronal mass ejections because part of the orbit at the Earth dayside is beyond the nose of the bow shock.

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Section: Open and Closed Field Line Boundary For Different Imf Orient...supporting

confidence: 92%

MHD study of the planetary magnetospheric response during extreme solar wind conditions: Earth and exoplanet magnetospheres applications

Varela

Brun

Strugarek

et al. 2022

A&A

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“…Sojka, Schunk, and Nicolls, 2014). The distinction between CMEinduced and CIR-induced storms has been discussed by Borovsky and Denton (2006), Denton et al (2006), Dremukhina, Yermolaev, andLodkina (2020), Dugassa, Habarulema, and Nigussie (2020b), Murphy et al (2020), Boroyev, Vasiliev, andBaishev (2020), Chakraborty et al (2020), andArowolo, Akala, andOyeyemi (2021). As stated by Borovsky and Denton (2006), CME-driven storms are relatively shorter, have denser plasma sheets, and cause large Dst-index perturbation, and among other effects they can produce dangerous geomagnetically induced currents (GICs), which have impacts on the energy infrastructure (e.g.…”

Section: Introductionmentioning

confidence: 97%

Solar Rotation Multiples in Space-Weather Effects

et al. 2021

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The solar rotation period is the most prominent mid-term periodicity in the temporal behaviour of solar, heliospheric, and geomagnetic parameters. It is also a cause of the repeatedly appearing geomagnetic storms originating from the corotating interaction regions (CIRs). Since geomagnetic CIR-driven storms have a natural periodic character, and geomagnetic storms impact energy infrastructure via geomagnetically induced currents, it is of interest whether this periodic character is also noticeable in the temporal behaviour of electrical-grid failures (EGFs), which, at least to some extent, might be of solar origin.

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“…In these works 11,12 have analyzed the AE and Kp indices during CIR and ICME events. It has been found that for CIR events, in contrast to ICME (MC + ejecta), AE increases with Esw.…”

Section: Introductionmentioning

confidence: 99%

The variations in SME index during the main phase of magnetic storms during CIR and ICME

Boroyev

Vasiliev

2022

28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

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In this paper, we examine the relationship of the SME index with magnetic storm characteristics and inter-planetary medium parameters during the main phase of magnetic storms caused by CIR and ICME events. Over the period 1990– 2017, 107 magnetic storms driven by (64) CIR and (43) ICME events have been selected. Close correlation coefficients between SMEaver and the SW electric field have been obtained for CIR and ICME events. SMEaver has been found to increase with the rate of magnetic storm development and |Dstmin|.

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The relationship between geomagnetic indices and the interplanetary medium parameters in magnetic storm main phases during CIR and ICME events

Cited by 14 publications

References 25 publications

MHD study of the planetary magnetospheric response during extreme solar wind conditions: Earth and exoplanet magnetospheres applications

MHD study of the planetary magnetospheric response during extreme solar wind conditions: Earth and exoplanet magnetospheres applications

Solar Rotation Multiples in Space-Weather Effects

The variations in SME index during the main phase of magnetic storms during CIR and ICME

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