Anisotropic Forbush decrease of 24 March 2024: First look
dc.contributor.author | Mishev A. | |
dc.contributor.author | Larsen N. | |
dc.contributor.author | Asvestari E. | |
dc.contributor.author | Sáiz A. | |
dc.contributor.author | Ann Shea M. | |
dc.contributor.author | Strauss D.T. | |
dc.contributor.author | Ruffolo D. | |
dc.contributor.author | Banglieng C. | |
dc.contributor.author | Seunarine S. | |
dc.contributor.author | Duldig M.L. | |
dc.contributor.author | Gil A. | |
dc.contributor.author | Blanco J.J. | |
dc.contributor.author | García-Población O. | |
dc.contributor.author | Cervino-Solana P. | |
dc.contributor.author | Adams, J.H. | |
dc.contributor.author | Usoskin I. | |
dc.contributor.correspondence | Mishev A. | |
dc.contributor.other | Mahidol University | |
dc.date.accessioned | 2024-08-29T18:15:43Z | |
dc.date.available | 2024-08-29T18:15:43Z | |
dc.date.issued | 2024-01-01 | |
dc.description.abstract | A strong Forbush decrease, i.e., suppression of the flux of galactic cosmic rays recorded on Earth, was observed by the global network of ground-based neutron monitors (NMs) on 24 – 25 March 2024. The decrease was very unusual as characterised by so rapid recovery that a false Ground-level enhancement (GLE) alarm was produced by the corresponding warning systems. Here we present the first comprehensive collection and analysis of the available data for this event. The event was highly anisotropic as exhibited in a 3-h spread of the deep-phase timing for different NMs. The anisotropy was focused nearly at the anti-sunward direction with a narrow cone of 20 – 30°. The heliospheric situation leading to this unusual Forbush decrease was quite complex. An analysis of first look records was performed, considering the stations acceptance, taking into account the complex geomagnetic conditions. A leader fraction analysis indicates that the recovery phase of the event was rigidity-independent and had essentially the same spectral shape as the pre-event period. A summary of the solar-terrestrial phenomena is provided to assist in future work on modelling this complex event. | |
dc.identifier.citation | Advances in Space Research (2024) | |
dc.identifier.doi | 10.1016/j.asr.2024.08.027 | |
dc.identifier.eissn | 18791948 | |
dc.identifier.issn | 02731177 | |
dc.identifier.scopus | 2-s2.0-85201687356 | |
dc.identifier.uri | https://repository.li.mahidol.ac.th/handle/123456789/100634 | |
dc.rights.holder | SCOPUS | |
dc.subject | Earth and Planetary Sciences | |
dc.subject | Physics and Astronomy | |
dc.subject | Engineering | |
dc.title | Anisotropic Forbush decrease of 24 March 2024: First look | |
dc.type | Article | |
mu.datasource.scopus | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85201687356&origin=inward | |
oaire.citation.title | Advances in Space Research | |
oairecerif.author.affiliation | Center for Space Plasma and Aeronomic Research | |
oairecerif.author.affiliation | University of Wisconsin-River Falls | |
oairecerif.author.affiliation | Rajamangala University of Technology Thanyaburi (RMUTT) | |
oairecerif.author.affiliation | North-West University | |
oairecerif.author.affiliation | Universidad de Alcalá | |
oairecerif.author.affiliation | University of Tasmania | |
oairecerif.author.affiliation | Sodankylä Geophysical Observatory | |
oairecerif.author.affiliation | Oulun Yliopisto | |
oairecerif.author.affiliation | Mahidol University | |
oairecerif.author.affiliation | Helsingin Yliopisto | |
oairecerif.author.affiliation | Siedlce University of Natural Sciences and Humanities | |
oairecerif.author.affiliation | 100 |