Ionospheric redistribution during geomagnetic storms. [PDF]
The abundance of plasma in the daytime ionosphere is often seen to grow greatly during geomagnetic storms. Recent reports suggest that the magnitude of the plasma density enhancement depends on the UT of storm onset. This possibility is investigated over a 7year period using global maps of ionospheric total electron content (TEC) produced at the Jet ...
Immel TJ, Mannucci AJ.
europepmc +4 more sources
Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement
Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm +2 more
wiley +1 more source
On extreme geomagnetic storms [PDF]
Extreme geomagnetic storms are considered as one of the major natural hazards for technology-dependent society. Geomagnetic field disturbances can disrupt the operation of critical infrastructures relying on space-based assets, and can also result in terrestrial effects, such as the Quebec electrical disruption in 1989. Forecasting potential hazards is
Cid Tortuero, Consuelo +4 more
openaire +3 more sources
Solar Cycle and Seasonal Distribution of Geomagnetic Storms with Sudden Commencement [PDF]
In this brief paper the seasonal and solar cycle distribution of storms with sudden commencement is presented. A correlation between the number of geomagnetic storms by month and monthly sunspot numbers is observed.
Mansilla, Gustavo Adolfo
core +1 more source
Statistical nature of geomagnetic storms [PDF]
On the basis of geomagnetic activity indices and solar wind parameters, a superposed epoch analysis has been conducted for more than 300 geomagnetic storms. The intensity of magnetic storms is found to depend on the duration of the main phase; larger storms have longer timescales.
N. Yokoyama, Y. Kamide
openaire +1 more source
Two Notable Geomagnetic Storms [PDF]
Disturbances of considerable intensity, comprising two distinct geomagnetic storms, occurred during the interval March 23–29, 1946. Displays of the Aurora Borealis have been reported; there was dislocation over long‐distance radio channels and, in the case of the second storm, with submarine‐cable telegraphy.
openaire +2 more sources
Quantifying extreme behaviour in geomagnetic activity [PDF]
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
core +1 more source
Evaluation of E Layer Dominated Ionosphere Events Using COSMIC/FORMOSAT-3 and CHAMP Ionospheric Radio Occultation Data [PDF]
At certain geographic locations, especially in the polar regions, the ionization of the ionospheric E layer can dominate over that of the F2 layer. The associated electron density profiles show their ionization maximum at E layer heights between 80 and ...
Hoque, Mohammed M. +3 more
core +2 more sources
Can Smartphones Detect Geomagnetic Storms? [PDF]
AbstractSeveral smartphone models on the Android and iOS platforms have been investigated for their ability to detect geomagnetic storms. Although this capability could have scientific application, there is a growing commercial interest in using smartphones for precision location applications not involving the GPS system.
openaire +2 more sources
Relativistic microburst storm characteristics: Combined satellite and ground-based observations [PDF]
We report a comparison of Solar Anomalous Magnetospheric Particle Explorer detected relativistic electron microbursts and short-lived subionospheric VLF perturbations termed FAST events, observed at Sodankyl Geophysical Observatory, Finland, during 2005.
Bortnik, Jacob +4 more
core +1 more source

