Open AccessSpace weather effects on Earth's environment associated to the 24–25 October 2011 geomagnetic storm
Author(s) -
Blanch E.,
Marsal S.,
Segarra A.,
Torta J. M.,
Altadill D.,
Curto J. J.
Publication year - 2013
Publication title -
space weather
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.254
H-Index - 56
ISSN - 1542-7390
DOI - 10.1002/swe.20035
Subject(s) - earth's magnetic field , space weather , geomagnetic storm , ionosphere , thermosphere , ionospheric dynamo region , atmospheric sciences , ionosonde , solar cycle 24 , storm , geophysics , observatory , coronal mass ejection , environmental science , meteorology , geology , solar wind , physics , magnetic field , electron density , quantum mechanics , astrophysics , electron
Space weather studies have increased due to human society dependence on spaceborne and terrestrial infrastructure vulnerable to its effects. In this paper, we present an interdisciplinary study of the effects of solar activity on the Earth's environment; specifically, we focus on the effects on the ionosphere and the geomagnetic field. A timeline of effects occurring on the Earth produced by one of the first relevant events of the present solar cycle (24–25 October 2011) is given. We have analyzed the solar wind shockwave from satellite data, the storm‐time development, the ionospheric effects at global and local scales using the National Center for Atmospheric Research Thermosphere‐Ionosphere‐Electrodynamics General Circulation Model fed with geomagnetic field‐aligned current data from the Active Magnetosphere and Planetary Electrodynamics Response Experiment, and ground ionosonde data from both hemispheres, at Ebre Observatory and Port Stanley locations. We have compared observed geomagnetic variations at high latitudes with those modeled by the National Center for Atmospheric Research Thermosphere‐Ionosphere‐Electrodynamics General Circulation Model. We have analyzed rapid geomagnetic variations (e.g., solar flare effect, storm commencement, Pi2) also on both hemispheres, at Ebre Observatory and Livingston Island locations. Finally, we have estimated geoelectric field and geomagnetically induced currents in the northeast of Spain (Catalonia) produced by this geomagnetic disturbance.