Solar Activity and Cosmic Ray Variations in September 2017

В. С. Махмутов, G. A. Bazilevskaya, Yuri I. Stozhkov, Maxim Philippov, E. V. Kalinin, Aidar K. Morzabayev, Vladimir Erkhov, Sh. Giniyatova

2019

Closed access Metadata (CSL-JSON)

DOI 10.3103/s1062873819050228

Data confidence 70 medium

How this score is calculated

It is built from checkable properties of the record itself: whether the article has a DOI, how many independent sources confirmed its data, whether the required fields are filled in, and how recent the latest confirmation is. Disagreement between sources and a missing identifier lower it. A value of 80 or above means the record was published without further checking; 60 to 79 means it is published at reduced confidence, with a manual check advisable. A record verified by an editor by hand is never pushed below 90 by a recalculation. This scores our data about the article, not the article itself.

Abstract

Abstract The results are presented from an analysis of data on solar activity and cosmic ray variations observed in September 2017. This period is characterized by a sharp increase in the solar flare activity in the active region AR 12673 during the late descending phase of the 24th solar activity cycle. Solar protons are recorded by the particle instruments aboard the GOES-13 satellite, in the atmosphere, and by the ground-based neutron monitor network. A moderate Forbush decrease in the cosmic ray flux during September 6–10 is also recorded by a number of neutron monitors. Several solar proton energy spectra during September 10, 2017, (GLE72 event) are evaluated using the results from satellite measurements, balloon observations, and neutron monitor records.