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Near-earth solar wind flows and related geomagnetic activity during more than four solar cycles (1963-2011)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Cane, Hilary V. Richardson, Ian G. |
| Copyright Year | 2012 |
| Description | 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 l1e related geomagnetic activity over more than four solar cycles, updating some of the results of our earlier studies. |
| File Size | 5554716 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20120016041 |
| Archival Resource Key | ark:/13960/t6rz4872v |
| Language | English |
| Publisher Date | 2012-05-07 |
| Access Restriction | Open |
| Subject Keyword | Solar Physics Coronal Mass Ejection Coronal Holes Upstream Solar Cycles Plasma Interactions Solar Wind Sun Cosmic Rays Energetic Particles Interplanetary Magnetic Fields Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
