A new version of the Neutron Monitor Based Anisotropic GLE Model : Application to GLE60

TL;DR

This paper introduces an improved cosmic ray model that links primary solar cosmic rays with ground-level secondary particles during GLEs, providing detailed insights into solar proton events.

Contribution

The paper presents a new version of the NMBANGLE model with an updated solar cosmic ray spectrum for better GLE analysis.

Findings

Model successfully characterizes GLE60 event

Enhanced understanding of solar proton event features

Comparison shows improved accuracy over previous version

Abstract

In this work we present a cosmic ray model that couples primary solar cosmic rays at the top of the Earth's atmosphere with the secondary ones detected at ground level by neutron monitors during Ground Level Enhancements (GLEs). The Neutron Monitor Based Anisotropic GLE Pure Power Law (NMBANGLE PPOLA) Model constitutes a new version of the already existing NMBANGLE Model, differing in the solar cosmic ray spectrum assumed. The total output of the model is a multi-dimensional GLE picture that reveals part of the characteristics of the big solar proton events recorded at ground level. We apply both versions of the model to the GLE of 15 April 2001 (GLE60) and compare the results.