Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/30812
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Scolini, Camilla | en_US |
dc.contributor.author | MESSEROTTI, Mauro | en_US |
dc.contributor.author | Poedts, Stefaan | en_US |
dc.contributor.author | Rodriguez, Luciano | en_US |
dc.date.accessioned | 2021-04-20T09:35:42Z | - |
dc.date.available | 2021-04-20T09:35:42Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 2115-7251 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/30812 | - |
dc.description.abstract | In this study we present a statistical analysis of 53 fast Earth-directed halo CMEs observed by the SOHO/LASCO instrument during the period Jan. 2009-Sep. 2015, and we use this CME sample to test the capabilities of a Sun-to-Earth prediction scheme for CME geoeffectiveness. First, we investigate the CME association with other solar activity features by means of multi-instrument observations of the solar magnetic and plasma properties. Second, using coronagraphic images to derive the CME kinematical properties at 0.1 AU, we propagate the events to 1 AU by means of the WSA-ENLIL+Cone model. Simulation results at Earth are compared with in-situ observations at L1. By applying the pressure balance condition at the magnetopause and a solar wind-Kp index coupling function, we estimate the expected magnetospheric compression and geomagnetic activity level, and compare them with global data records. The analysis indicates that 82% of the CMEs arrived at Earth in the next 4 days. Almost the totality of them compressed the magnetopause below geosynchronous orbits and triggered a geomagnetic storm. Complex sunspot-rich active regions associated with energetic flares result the most favourable configurations from which geoeffective CMEs originate. The analysis of related SEP events shows that 74% of the CMEs associated with major SEPs were geoeffective. Moreover, the SEP production is enhanced in the case of fast and interacting CMEs. In this work we present a first attempt at applying a Sun-to-Earth geoeffectiveness prediction scheme - based on 3D simulations and solar wind-geomagnetic activity coupling functions - to a statistical set of potentially geoeffective halo CMEs. The results of the prediction scheme are in good agreement with geomagnetic activity data records, although further studies performing a fine-tuning of such scheme are needed. <P /> | en_US |
dc.language.iso | eng | en_US |
dc.title | Halo Coronal Mass Ejections during Solar Cycle 24: reconstruction of the global scenario and geoeffectiveness | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1051/swsc/2017046 | en_US |
dc.identifier.scopus | 2-s2.0-85042201417 | en_US |
dc.identifier.isi | 000425456800003 | en_US |
dc.identifier.url | https://www.swsc-journal.org/articles/swsc/full_html/2018/01/swsc170032/swsc170032.html | en_US |
dc.relation.medium | ELETTRONICO | en_US |
dc.relation.volume | 8 | en_US |
dc.relation.numberofpages | 19 | en_US |
dc.relation.article | A09 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 4 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | BEL | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | JOURNAL OF SPACE WEATHER AND SPACE CLIMATE | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2018JSWSC...8A...9S | en_US |
dc.description.apc | sì | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
crisitem.journal.journalissn | 2115-7251 | - |
crisitem.journal.ance | E213309 | - |
crisitem.author.dept | O.A. Trieste | - |
crisitem.author.orcid | 0000-0002-5422-1963 | - |
È visualizzato nelle collezioni: | 1.01 Articoli in rivista |
File in questo documento:
File | Descrizione | Dimensioni | Formato | |
---|---|---|---|---|
swsc170032.pdf | Pdf editoriale | 1.95 MB | Adobe PDF | Visualizza/apri |
Page view(s)
47
controllato il 19-lug-2024
Download(s)
24
controllato il 19-lug-2024
Google ScholarTM
Check
Altmetric
Altmetric
Tutti i documenti in DSpace sono pubblicati ad Accesso Aperto, salvo diversa indicazione per alcuni documenti specifici.