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Forbush decrease observed by SEVAN particle detector network on November 4, 2021

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arxiv 2212.13514 v1 pith:ENKAVIBL submitted 2022-12-27 physics.space-ph physics.ao-ph

classification physics.space-phphysics.ao-ph
keywords sevanaragatsdecreasedetectorforbushgeomagneticicmenetwork
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On November 3-4 2021, an interplanetary coronal mass injection (ICME) hits the magnetosphere, sparking a strong G3-class geomagnetic storm and auroras as far south as California and New Mexico. All detectors of the SEVAN network registered a Forbush decrease (FD) of 5-10 percentdeep in 1 minute time series of count rates. We present the results of a comparison of Fd registered on mountain altitudes on Aragats (Armenia), Lomnicky Stit (Slovakia), Musala (Bulgaria), and at sea level DESY (Hamburg, Germany), and in Mileshovka, Czechia. We present as well purity and barometric coefficients of different coincidences of SEVAN detector layers on Aragats. We demonstrate disturbances of the near-surface electric (NSEF) and geomagnetic fields at the arrival of the ICME on Earth.

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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Morphological Fingerprints of Forbush Decreases and Their Relation to Geomagnetic Storm Severity

    astro-ph.IM 2026-02 unverdicted novelty 6.0 of 10

    Graph fingerprints of neutron-monitor responses to Forbush decreases carry a moderate, likely optimistic signal for classifying storm severity and predicting FD magnitude.

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