Predicting extremes in European geomagnetic activity [PDF]
, 2010 Rapid variations in the geomagnetic field constitute a natural hazard, e.g. for navigation and to power grids and pipeline networks. In order to better allocate resources towards mitigating these risks, we must be able to model the recurrence of ...
Thomson, Alan, Dawson, Ewan, Reay, Sarah
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Analysis of geomagnetic disturbances dynamics during increased solar activity and magnetic storms (according to the measurements of INTERMAGNET station network) [PDF]
E3S Web of Conferences, 2019 We present and describe an automated method for analysis of magnetic data and for detection of geomagnetic disturbances based on wavelet transformation.
Mandrikova Oksana +2 more
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On the multi-scale nature of large geomagnetic storms: an empirical mode decomposition analysis [PDF]
Nonlinear Processes in Geophysics, 2012 Complexity and multi-scale are very common properties of several geomagnetic time series. On the other hand, it is amply demonstrated that scaling properties of geomagnetic time series show significant changes depending on the geomagnetic activity level.
P. De Michelis, G. Consolini, R. Tozzi
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Geomagnetic activity related NOx enhancements and polar surface air temperature variability in a chemistry climate model: modulation of the NAM index [PDF]
Atmospheric Chemistry and Physics, 2011 The atmospheric chemistry general circulation model ECHAM5/MESSy is used to simulate polar surface air temperature effects of geomagnetic activity variations.
P. Jöckel +3 more
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The driving mechanisms of particle precipitation during the moderate geomagnetic storm of 7 January 2005 [PDF]
, 2007 International audienceThe arrival of an interplanetary coronal mass ejection (ICME) triggered a sudden storm commencement (SSC) at ~09:22 UT on the 7 January 2005. The ICME followed a quiet period in the solar wind and interplanetary magnetic field (IMF).
N. Longden +7 more
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Geomagnetic Impulses and the Electrical Conductivity of the Lower Mantle [PDF]
, 1991 This thesis is an investigation of the changes in the magnetic field as measured at the surface of the Earth on the time-scale of months to decades. In particular the phenomena of geomagnetic "impulses" or "jerks" are investigated.
Stewart, Douglas Norman
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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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Scaling in long term data sets of geomagnetic indices and solar wind ϵ as seen by WIND spacecraft [PDF]
, 2003 We study scaling in fluctuations of the geomagnetic indices (AE, AU, and AL) that provide a measure of magnetospheric activity and of the ε parameter which is a measure of the solar wind driver.
Chapman, S.C. +8 more
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Particle precipitation during ICME-driven and CIR-driven geomagnetic storms [PDF]
, 2008 Interplanetary coronal mass ejections (ICME) and corotating interaction regions (CIR) alter the parameters of the solar wind and interplanetary magnetic field (IMF) that affect conditions in the Earth's magnetosphere and particle precipitation in the ...
Honary, Farideh +2 more
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Neural network prediction of geomagnetic activity: a method using local Hölder exponents [PDF]
, 2002 Local scaling and singularity properties of solar wind and geomagnetic time series were analysed using Hölder exponents . It was shown that in analysed cases due to the multifractality of fluctuations, α changes from point to point.
D. Jankovičová +3 more
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