scholarly journals Solar energetic particles and space weather

2001 ◽  
Author(s):  
Donald V. Reames
Keyword(s):  
Space Weather ◽  
Energetic Particles ◽  
Solar Energetic Particles

scholarly journals Sources of solar energetic particles

2019 ◽  
Vol 377 (2148) ◽  
pp. 20180095 ◽  
Author(s):  
Loukas Vlahos ◽  
Anastasios Anastasiadis ◽  
Athanasios Papaioannou ◽  
Athanasios Kouloumvakos ◽  
Heinz Isliker
Keyword(s):  
Solar Corona ◽  
Space Weather ◽  
Solar Flares ◽  
Large Scale ◽  
Energetic Particles ◽  
Solar Energetic Particles ◽  
Plasma Parameters ◽  
Current Sheets ◽  
Solar Eruptions ◽  
Magnetohydrodynamic Simulations

Solar energetic particles are an integral part of the physical processes related with space weather. We present a review for the acceleration mechanisms related to the explosive phenomena (flares and/or coronal mass ejections, CMEs) inside the solar corona. For more than 40 years, the main two-dimensional cartoon representing our understanding of the explosive phenomena inside the solar corona remained almost unchanged. The acceleration mechanisms related to solar flares and CMEs also remained unchanged and were part of the same cartoon. In this review, we revise the standard cartoon and present evidence from recent global magnetohydrodynamic simulations that support the argument that explosive phenomena will lead to the spontaneous formation of current sheets in different parts of the erupting magnetic structure. The evolution of the large-scale current sheets and their fragmentation will lead to strong turbulence and turbulent reconnection during solar flares and turbulent shocks. In other words, the acceleration mechanism in flares and CME-driven shocks may be the same, and their difference will be the overall magnetic topology, the ambient plasma parameters, and the duration of the unstable driver. This article is part of the theme issue ‘Solar eruptions and their space weather impact’.

scholarly journals Current status and possible extension of the global neutron monitor network

2020 ◽  
Vol 10 ◽  
pp. 17
Author(s):  
Alexander Mishev ◽  
Ilya Usoskin
Keyword(s):  
Space Weather ◽  
Neutron Monitor ◽  
Cosmic Ray ◽  
Ground Level ◽  
Solar Proton ◽  
Energetic Particles ◽  
Solar Energetic Particles ◽  
Current Status ◽  
Flight Altitude ◽  
Ground Level Enhancements

The global neutron monitor network has been successfully used over several decades to study cosmic ray variations and fluxes of energetic solar particles. Nowadays, it is used also for space weather purposes, e.g. alerts and assessment of the exposure to radiation. Here, we present the current status of the global neutron monitor network. We discuss the ability of the global neutron monitor network to study solar energetic particles, specifically during large ground level enhancements. We demonstrate as an example, the derived solar proton characteristics during ground level enhancements GLE #5 and the resulting effective dose over the globe at a typical commercial jet flight altitude of 40 kft (≈12,200 m) above sea level. We present a plan for improvement of space weather services and applications of the global neutron monitor network, specifically for studies related to solar energetic particles, namely an extension of the existing network with several new monitors. We discuss the ability of the optimized global neutron monitor network to study various populations of solar energetic particles and to provide reliable space weather services.

Assessing the Predictability of Solar Energetic Particles with the Use of Machine Learning Techniques

Solar Physics ◽  
2021 ◽  
Vol 296 (7) ◽  
Author(s):  
E. Lavasa ◽  
G. Giannopoulos ◽  
A. Papaioannou ◽  
A. Anastasiadis ◽  
I. A. Daglis ◽  
...  
Keyword(s):  
Machine Learning ◽  
Energetic Particles ◽  
Solar Energetic Particles ◽  
Machine Learning Techniques ◽  
Learning Techniques

scholarly journals Evidence for Remnant Flare Suprathermals in the Source Population of Solar Energetic Particles in the 2000 Bastille Day Event

2001 ◽  
Vol 558 (1) ◽  
pp. L59-L63 ◽  
Author(s):  
A. J. Tylka ◽  
C. M. S. Cohen ◽  
W. F. Dietrich ◽  
C. G. Maclennan ◽  
R. E. McGuire ◽  
...  
Keyword(s):  
Energetic Particles ◽  
Solar Energetic Particles ◽  
Source Population

scholarly journals Solar energetic particles and their variability from the sun and beyond

2013 ◽  
Author(s):  
R. A. Mewaldt ◽  
C. M. S. Cohen ◽  
G. M. Mason ◽  
T. T. von Rosenvinge ◽  
R. A. Leske ◽  
...  
Keyword(s):  
Energetic Particles ◽  
Solar Energetic Particles ◽  
The Sun
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