Searching for Carrington-like events and their signatures and triggers
| Autor: | Saiz Villanueva, María Elena, Guerrero Ortega, Antonio, Cid Tortuero, Consuelo, Palacios Hernández, Judith, Cerrato Montalbán, Yolanda |
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| Přispěvatelé: | Universidad de Alcalá. Departamento de Física y Matemáticas. Unidad docente Física |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Atmospheric Science
Disturbance (geology) Space weather 010504 meteorology & atmospheric sciences Astronomy FOS: Physical sciences lcsh:QC851-999 01 natural sciences Physics - Geophysics Physics - Space Physics Storm 0103 physical sciences 010303 astronomy & astrophysics Ring current 0105 earth and related environmental sciences Geomagnetic storm Solar storm of 1859 Physics Física Geomagnetism Geophysics Space Physics (physics.space-ph) Geophysics (physics.geo-ph) Astronomía Solar wind Earth's magnetic field Space and Planetary Science lcsh:Meteorology. Climatology Interplanetary spaceflight Interplanetary medium Indices Geology |
| Zdroj: | Journal of Space Weather and Space Climate, Vol 6, p A6 (2016) |
| 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 re- interpretation 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. Accepted in Journal of Space Weather and Space Climate (SWSC) |
| Databáze: | OpenAIRE |
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