| Autor: |
Saiz Elena, Guerrero Antonio, Cid Consuelo, Palacios Judith, Cerrato Yolanda |
| Jazyk: |
angličtina |
| Rok vydání: |
2016 |
| Předmět: |
|
| Zdroj: |
Journal of Space Weather and Space Climate, Vol 6, p A6 (2016) |
| Druh dokumentu: |
article |
| ISSN: |
2115-7251 |
| DOI: |
10.1051/swsc/2016001 |
| Popis: |
The Carrington storm in 1859 is considered to be the major geomagnetic disturbance related to solar activity. In a recent paper, Cid et al. (2015) discovered a geomagnetic disturbance case with a profile extraordinarily similar to the disturbance of the Carrington event at Colaba, but at a mid-latitude observatory, leading to a reinterpretation of the 1859 event. Based on those results, this paper performs a deep search for other “Carrington-like” events and analyses interplanetary observations leading to the ground disturbances which emerged from the systematic analysis. The results of this study based on two Carrington-like events (1) reinforce the awareness about the possibility of missing hazardous space weather events as the large H-spike recorded at Colaba by using global geomagnetic indices, (2) argue against the role of the ring current as the major current involved in Carrington-like events, leaving field-aligned currents (FACs) as the main current involved and (3) propose abrupt southward reversals of IMF along with high solar wind pressure as the interplanetary trigger of a Carrington-like event. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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