Solar cycle dependence of High‐Intensity Long‐Duration Continuous AE Activity (HILDCAA) events, relativistic electron predictors?
Abstract High‐Intensity, Long‐Duration, Continuous AE Activity (HILDCAA) events are
studied using long‐term geomagnetic and solar wind/interplanetary databases. We use the …
studied using long‐term geomagnetic and solar wind/interplanetary databases. We use the …
Supersubstorms (SML<− 2500 nT): Magnetic storm and solar cycle dependences
We study extremely intense substorms with SuperMAG AL (SML) peak intensities<− 2500 nT
(“supersubstorms”/SSSs) for the period from 1981 to 2012. The SSS events were often found …
(“supersubstorms”/SSSs) for the period from 1981 to 2012. The SSS events were often found …
Statistical studies of geomagnetic storms with peak Dst≤− 50 nT from 1957 to 2008
A catalog of 1377 geomagnetic storms with peak Dst (Dst p)≤− 50 nT for the period 1957–
2008 has been compiled. The dependence of Dst p on the solar cycle and annual variation …
2008 has been compiled. The dependence of Dst p on the solar cycle and annual variation …
Seasonal and diurnal variation of geomagnetic activity: Russell‐McPherron effect during different IMF polarity and/or extreme solar wind conditions
The Russell‐McPherron (R‐M) effect is one of the most prevailing hypotheses accounting for
semiannual variation of geomagnetic activity. To validate the R‐M effect and investigate the …
semiannual variation of geomagnetic activity. To validate the R‐M effect and investigate the …
MESSENGER observations of magnetotail loading and unloading: Implications for substorms at Mercury
We present the first statistical study of loading and unloading of magnetic flux in Mercury's
magnetotail. These events describe the global circulation of magnetic flux through the …
magnetotail. These events describe the global circulation of magnetic flux through the …
[HTML][HTML] Seasonal features of geomagnetic activity: a study on the solar activity dependence
A Marques de Souza Franco, R Hajra… - Annales …, 2021 - angeo.copernicus.org
Seasonal features of geomagnetic activity and their solar-wind–interplanetary drivers are
studied using more than five solar cycles of geomagnetic activity and solar wind …
studied using more than five solar cycles of geomagnetic activity and solar wind …
Intense geomagnetically induced currents (GICs): Association with solar and geomagnetic activities
R Hajra - Solar Physics, 2022 - Springer
We present a statistical study of the intense geomagnetically induced currents (GICs) in the
subauroral region, which can damage ground electronic systems. From the natural gas …
subauroral region, which can damage ground electronic systems. From the natural gas …
Effect of interplanetary magnetic field on hemispheric asymmetry in ionospheric horizontal and field‐aligned currents during different seasons
AB Workayehu, H Vanhamäki, AT Aikio… - Journal of …, 2021 - Wiley Online Library
We present a statistical investigation of the effects of interplanetary magnetic field (IMF) on
hemispheric asymmetry in auroral currents. Nearly 6 years of magnetic field measurements …
hemispheric asymmetry in auroral currents. Nearly 6 years of magnetic field measurements …
How different are the solar wind‐interplanetary conditions and the consequent geomagnetic activity during the ascending and early descending phases of the solar …
The current work investigates the possible solar wind‐interplanetary (SW‐IP) drivers of
geomagnetic storms during the longest period (ascending to early descending phases) of …
geomagnetic storms during the longest period (ascending to early descending phases) of …
Superposed epoch analyses of HILDCAAs and their interplanetary drivers: Solar cycle and seasonal dependences
We study the solar cycle and seasonal dependences of high-intensity, long-duration,
continuous AE activity (HILDCAA) events and associated solar wind/interplanetary external …
continuous AE activity (HILDCAA) events and associated solar wind/interplanetary external …