Effect of Ap-Index of Geomagnetic Activity on S&P 500 Stock Market Return
Advances in Astronomy, 2019 Geomagnetic activity with global influence is an essential object of space weather research and is a significant link in the section of the solar wind-magnetospheric coupling process.
Lifang Peng, Ning Li, Jingwen Pan
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EARTHQUAKES AND GEOMAGNETIC DISTURBANCES
Solar-Terrestrial Physics, 2020 The article addresses the problem of the connection of earthquakes with geomagnetic phenomena. We have carried out an experimental study using a method based, firstly, on the separation of periods of geomagnetic activity into extremely quiet and ...
A.V. Guglielmi +2 more
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An interpretation of the ƒoF2 and hmF2 long-term trends in the framework of the geomagnetic control concept [PDF]
Annales Geophysicae, 2001 Earlier revealed morphological features of the foF2 and hmF2 long-term trends are interpreted in the scope of the geomagnetic control concept based on the contemporary F2-layer storm mechanisms.
A. V. Mikhailov, D. Marin
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Atmosphere, 2022 Nighttime F-region field-aligned irregularities (FAIs) associated with equatorial plasma bubbles (EPBs) are impacted by terrestrial factors, such as solar irradiance and geomagnetic activity. This paper examines the impact of the planetary-scale periodic
Lalit Mohan Joshi +3 more
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On the Influence of the Data Sampling Interval on Computer-Derived K-Indices [PDF]
, 2011 The K index was devised by Bartels et al. (1939) to provide an objective monitoring of irregular geomagnetic activity. The K index was then routinely used to monitor the magnetic activity at permanent magnetic observatories as well as at temporary ...
Bernard, Armelle +2 more
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The influence of geomagnetic activity on mesospheric summer echoes in middle and polar latitudes [PDF]
Annales Geophysicae, 2009 The dependence of mesospheric VHF radar echoes during summer months on geomagnetic activity has been investigated with observation data of the OSWIN radar in Kühlungsborn (54° N) and of the ALWIN radar in Andenes (69° N).
O. Zeller, O. Zeller, J. Bremer
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Statistical study and corresponding evolution of plasmaspheric plumes under different levels of geomagnetic storms [PDF]
Annales Geophysicae, 2022 Using observations of Van Allen Probes, we present a statistical study of plasmaspheric plumes in the inner magnetosphere. Plasmaspheric plumes tend to occur during the recovery phase of geomagnetic storms.
H. Li +7 more
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Quantifying extreme behaviour in geomagnetic activity [PDF]
, 2011 Understanding the extremes in geomagnetic activity is an important component in understanding just how severe conditions can become in the terrestrial space environment. Extreme activity also has consequences for technological systems.
Alan W. P. Thomson +18 more
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Local impact of solar variation on NO2 in the lower mesosphere and upper stratosphere from 2007 to 2012 [PDF]
Atmospheric Chemistry and Physics, 2014 MIPAS/ENVISAT data of nighttime NO2 volume mixing ratios (VMR) from 2007 until 2012 between 40 km and 62 km altitude are compared with the geomagnetic Ap index and solar Lyman-α radiation.
F. Friederich +4 more
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Halo Coronal Mass Ejections during Solar Cycle 24: reconstruction of the global scenario and geoeffectiveness [PDF]
, 2017 In this study we present a statistical analysis of 53 fast Earth-directed halo CMEs observed by the SOHO/LASCO instrument during the period Jan. 2009-Sep.
Messerotti, Mauro +3 more
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