1 / 13

MDI Global Field & Solar Wind

This study compares solar wind predictions for Solar Cycle 23 using data from MDI, Global Field, Solar Wind X, Sun Sunspot Number, Polar Field Strength, HCS Tilt Angle, CH Area and Source, Footpoint Sources, Zonal Surface B, Zonal PFSS B, Zonal SW Velocity 1 AU Velocity and Polarity Obs. + Model. The edge effect is explored by analyzing new data sources for High-Speed Streams, Solar Wind Velocity and Heliospheric Field Distribution from August 1996 to June 2009. The configuration of Solar Wind Velocity at SS and sources of open flux through Cycle 23 are examined, as well as the prediction performance at 1AU during the minimum and maximum of Cycle 23. The effect of Source Surface Height in the prediction and the comparison of minima in 1996 and 2009 are also discussed.

kranz
Download Presentation

MDI Global Field & Solar Wind

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. MDI Global Field & Solar Wind X. Sun

  2. Sunspot Number • Polar Field Strength • HCS Tilt Angle • CH Area & Source • Footpoint Sources • Zonal Surface B • Zonal PFSS B • Zonal SW Velocity

  3. 1 AU Velocity and Polarity Obs + Model – Solar Cycle 23

  4. MDI Solar Wind Prediction – Method Comparison

  5. The Edge Effect – New Data

  6. Sources of 4 HighSpeed streams

  7. Solar Wind Velocity & Heliospheric Field Distribution • 1996 August – 2009 June

  8. Configuration of Solar Wind Velocity at SS and Sources of Open Flux Through Cycle 23

  9. 1AU Prediction Performance – Cycle 23

  10. Minimum & Maximum Compared

  11. Source Surface Height ? • |Bx| at 1AU for Rss=2.5 by Rotation • Total/Dipole Open Flux Ratio • Best Rss for Observed Br Min 22/23 – CR 1911-1930 Min 23/24 – CR 2063-2082 • Velocity Correlation vs Rss • Polarity Prediction vs Rss

  12. Effect of Source Surface HeightComparing Minima in 1996 & 2009

More Related