Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 35, issue 4
Articles | Volume 35, issue 4
https://doi.org/10.5194/angeo-35-825-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/angeo-35-825-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 35, issue 4
Regular paper
 | 
17 Jul 2017
Regular paper |  | 17 Jul 2017

Decadal trends in the diurnal variation of galactic cosmic rays observed using neutron monitor data

Simon Thomas, Mathew Owens, Mike Lockwood, and Chris Owen

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Short summary
Galactic cosmic rays are high-energy particles from outside of the solar system. The products of their interaction with the atmosphere are counted by a network of neutron monitors. The number of cosmic rays reaching Earth is affected by the magnetic field embedded in the solar wind. The result is a number of regular variations in the neutron monitor data, including a diurnal variation. We have found that this variation is influenced by 1–2 h by the polarity of the Sun's magnetic field.
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