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Near-earth solar wind flows and related geomagnetic activity during more than four solar cycles (1963-2011)


Richardson, IG and Cane, HV, Near-earth solar wind flows and related geomagnetic activity during more than four solar cycles (1963-2011), Journal of Space Weather and Space Climate, 2 pp. 1-10. ISSN 2115-7251 (2012) [Refereed Article]


Copyright Statement

Copyright 2012 The Authors. Licensed under Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)

DOI: doi:10.1051/swsc/2012003


In past studies, we classified the near-Earth solar wind into three basic flow types based on inspection of solar wind plasma and magnetic field parameters in the OMNI database and additional data (e.g., geomagnetic indices, energetic particle, and cosmic ray observations). These flow types are: (1) High-speed streams associated with coronal holes at the Sun, (2) Slow, interstream solar wind, and (3) Transient flows originating with coronal mass ejections at the Sun, including interplanetary coronal mass ejections and the associated upstream shocks and post-shock regions. The solar wind classification in these previous studies commenced with observations in 1972. In the present study, as well as updating this classification to the end of 2011, we have extended the classification back to 1963, the beginning of near-Earth solar wind observations, thereby encompassing the complete solar cycles 20 to 23 and the ascending phase of cycle 24. We discuss the cycle-to-cycle variations in near-Earth solar wind structures and the related geomagnetic activity over more than four solar cycles, updating some of the results of our earlier studies. © Owned by the authors,

Item Details

Item Type:Refereed Article
Keywords:Solar cycless Interplanetary Coronal Mass Ejection (CME), Interplanetary medium
Research Division:Physical Sciences
Research Group:Astronomical sciences
Research Field:Solar physics
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Cane, HV (Dr Hilary Cane)
ID Code:110769
Year Published:2012
Web of Science® Times Cited:84
Deposited By:Mathematics and Physics
Deposited On:2016-08-12
Last Modified:2017-11-01
Downloads:183 View Download Statistics

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