RT info:eu-repo/semantics/article
T1 Searching for Carrington-like events and their signatures and triggers
A1 Saiz Villanueva, María Elena
A1 Guerrero Ortega, Antonio
A1 Cid Tortuero, Consuelo
A1 Palacios Hernández, Judith
A1 Cerrato Montalbán, Yolanda
K1 Interplanetary medium
K1 Geomagnetism
K1 Space weather
K1 Storm
K1 Indices
K1 Física
K1 Physics
K1 Astronomía
K1 Astronomy
AB 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.
PB EDP Sciences
YR 2016
FD 2016-01-26
LK http://hdl.handle.net/10017/54483
UL http://hdl.handle.net/10017/54483
LA eng
NO Ministerio de Economía y Competitividad
DS MINDS@UW
RD 19-abr-2024