1 / 15

Simulating Superstorm Plasma Sources Mei-Ching Fok 1 , Thomas E. Moore 1 , Dominique C. Delcourt 2

Simulating Superstorm Plasma Sources Mei-Ching Fok 1 , Thomas E. Moore 1 , Dominique C. Delcourt 2 Joel A. Fedder 3 , and Steven P. Slinker 4 1 NASA Goddard Space Flight Center, USA 2 Centre d'etude des Environnements Terrestre et Planetaires, France 3 Icarus Research Inc., USA

spencer
Download Presentation

Simulating Superstorm Plasma Sources Mei-Ching Fok 1 , Thomas E. Moore 1 , Dominique C. Delcourt 2

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Simulating Superstorm Plasma Sources Mei-Ching Fok1, Thomas E. Moore1, Dominique C. Delcourt2 Joel A. Fedder3, and Steven P. Slinker4 1NASA Goddard Space Flight Center, USA 2Centre d'etude des Environnements Terrestre et Planetaires, France 3Icarus Research Inc., USA 4Naval Research Laboratory, USA SM44A-05, May 29, 2008 2008 Joint Assembly Fort Lauderdale, Florida

  2. Superstorm on 20-21 November 2003

  3. Global Ion Kinetic Model Solar Wind Parameters LFM Event Run Polar, Auroral Outflow Models Test-Particle Model Solar Wind Particle Distribution Polar Wind Particle Distribution Auroral Wind Particle Distribution Comprehensive Ring Current Model (CRCM) Plasmasphere Model

  4. Global Ion Kinetic Model Solar Wind Parameters LFM Event Run Polar, Auroral Outflow Models Plasmaspheric Outflow Model Test-Particle Model Solar Wind Particle Distribution Polar Wind Particle Distribution Auroral Wind Particle Distribution Comprehensive Ring Current Model (CRCM) Plasmasphere Model

  5. Global Ion Kinetic Model Solar Wind Parameters LFM Event Run Polar, Auroral Outflow Models Plasmaspheric Outflow Model Test-Particle Model Plasmaspheric Wind Particle Distribution Solar Wind Particle Distribution Polar Wind Particle Distribution Auroral Wind Particle Distribution Comprehensive Ring Current Model (CRCM) Plasmasphere Model

  6. Plasmasphere Model Driven by LFM-CRCM Fields CRCM run without plasmaspheric wind particles CRCM run with plasmaspheric wind particles • Plasmapause is closer to the Earth when plasmaspheric wind is not included. • Similar plume structure and escape flux on the dayside for both cases.

  7. Auroral Wind:Pressure

  8. Polar Wind: Pressure

  9. Plasmaspheric Wind: Pressure

  10. Ring Current Total Energy • Similar total energy: SW and AW displaced by PSW • PSW is dominant over SW and AW

  11. Global Ion (H+) Energetics • Enhances total energy • Reduces mean energy of solar wind • Reduces overall mean energy • Suggests two-temperature ring current plasma

  12. Why Is Plasmaspheric-Wind Dominant in Ring Current? Plasmaspheric Wind (PSW) • High PSW density at dusk local times at the CRCM boundary. • Deep penetration of keV’s PsW particles into low L’s Solar Wind (SW)

  13. Conclusions • Plasmaspheric wind (PSW) important, even dominant • PsW “displaces” other sources (CRCM is self-consistent) • But how to detect PSW (THEMIS observed PSW)? Without PSW With PSW

  14. Backup Slides

  15. Plasmaspheric Wind: Mean Energy

More Related