Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement
Geophysical Monograph Series, Page 27-82., 2021 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 +2 more sources
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
doaj +1 more source
Earth, Planets and Space, 2022 Cosmogenic radionuclide records (e.g., 10Be and 14C) contain information on past geomagnetic dipole moment and solar activity changes. Disentangling these signals is challenging, but can be achieved by using independent reconstructions of the geomagnetic
Long Nguyen +3 more
doaj +1 more source
Solar wind and geomagnetism: toward a standard classification of geomagnetic activity from 1868 to 2009 [PDF]
Annales Geophysicae, 2012 We examined solar activity with a large series of geomagnetic data from 1868 to 2009. We have revisited the geomagnetic activity classification scheme of Legrand and Simon (1989) and improve their scheme by lowering the minimum Aa index value for ...
J. L. Zerbo +4 more
doaj +1 more source
Did Open Solar Magnetic Field Increase during the Last 100 Years: A Reanalysis of Geomagnetic Activity [PDF]
, 2004 Long-term geomagnetic activity presented by the aa index has been used to show that the heliospheric magnetic field has more than doubled during the last 100 years. However, serious concern has been raised on the long-term consistency of the aa index and
Karinen, A., Martini, D., Mursula, K.
core +2 more sources
Dynamics of Electron Flux in the Slot Region and Geomagnetic Activity
Space Weather, 2021 The slot region between the radiation belts in the magnetosphere is statistically less populated by the energetic electrons, which makes it attractive in the design considerations of the satellite missions.
L. Nikitina, L. Trichtchenko
doaj +1 more source
Effects of solar wind magnetosphere coupling recorded at different geomagnetic latitudes: Separation of directly-driven and storage/release systems [PDF]
, 2008 The effect on geomagnetic activity of solar wind speed, compared with that of the strength of the interplanetary magnetic field, differs with geomagnetic latitude.
A. P. Rouillard +22 more
core +1 more source
Long-term trends of foE and geomagnetic activity variations [PDF]
Annales Geophysicae, 2003 A relationship between foE trends and geomagnetic activity long-term variations has been revealed for the first time. By analogy with earlier obtained results on the foF2 trends it is possible to speak about the geomagnetic control of the foE ...
A. V. Mikhailov, B. A. de la Morena
doaj +1 more source
Multiscale variation model and activity level estimation algorithm of the Earth's magnetic field based on wavelet packets [PDF]
Annales Geophysicae, 2018 We suggest a wavelet-based multiscale mathematical model of geomagnetic field variations. The model is particularly capable of reflecting the characteristic variation and local perturbations in the geomagnetic field during the periods of increased ...
O. V. Mandrikova +7 more
doaj +1 more source
Atmospheric temperature responses to solar irradiance and geomagnetic activity [PDF]
, 2005 The relative effects of solar irradiance and geomagnetic activity on the atmospheric temperature anomalies (Ta) are examined from the monthly to interdecadal timescales. Geomagnetic Ap (Ap) signals are found primarily in the stratosphere, while the solar
Hua Lu +76 more
core +2 more sources