Loading…

Extreme geomagnetic storms, recent Gleissberg cycles and space era-superintense storms

Extreme historical and space era geomagnetic storms ( Δ H or Dst ≤ − 400 nT ) are studied in terms of their sunspot and Gleissberg solar cycle distributions. Interplanetary and magnetospheric processes associated with the Carrington storm are summarized and the intense storm of August 4, 1972 is dis...

Full description

Saved in:
Bibliographic Details
Published in:Journal of atmospheric and solar-terrestrial physics 2011-07, Vol.73 (11), p.1447-1453
Main Authors: Gonzalez, W.D., Echer, E., Clúa de Gonzalez, A.L., Tsurutani, B.T., Lakhina, G.S.
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Extreme historical and space era geomagnetic storms ( Δ H or Dst ≤ − 400 nT ) are studied in terms of their sunspot and Gleissberg solar cycle distributions. Interplanetary and magnetospheric processes associated with the Carrington storm are summarized and the intense storm of August 4, 1972 is discussed in the context of the possibility of having occurred as an extreme storm instead, if the polarity of the related magnetic cloud would have been opposite. We also discuss about superintense geomagnetic storms ( Dst ≤ − 250 nT ) that occurred in the space era, showing their solar cycle and seasonal distributions and also providing averages for the peak values of their main associated interplanetary parameters. A discussion about the possible occurrence of more Carrington type storms is also addressed.
ISSN:1364-6826
1879-1824
DOI:10.1016/j.jastp.2010.07.023