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C. May 12, 1997 Interplanetary Event

C. May 12, 1997 Interplanetary Event. Ambient Solar Wind Models. SAIC 3-D MHD steady state coronal model based on photospheric field maps. CU/CIRES-NOAA/SEC 3-D solar wind model based on potential and current-sheet source surface empirical models. CME Cone Model. Conceptual model:

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C. May 12, 1997 Interplanetary Event

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  1. C. May 12, 1997 Interplanetary Event

  2. Ambient Solar Wind Models SAIC 3-D MHD steady state coronal model based on photospheric field maps CU/CIRES-NOAA/SEC 3-D solar wind model based on potential and current-sheet source surface empirical models

  3. CME Cone Model Conceptual model: CME as a shell-like region of enhanced density Geometrical and kinematical fitting: Dependence of predicted CME halos on the latitude, longitude, angular width, and velocity [ Zhao et al., 2001 ]

  4. CME Cone Model Best fitting for May 12, 1997 halo CME • latitude: N3.0 • longitude: W1.0 • angular width: 50 deg • velocity:650 km/s at 24 Rs (14:15 UT) • acceleration: 18.5 m/s2 [ Zhao et al., 2001 ]

  5. CASE - 1 Boundary Conditions CASE - 2 Ambient Solar Wind + Plasma Cloud Ambient Solar Wind

  6. CASE - 1 Evolution of Parameters at Earth CASE - 2 Ambient Solar Wind + Plasma Cloud Ambient Solar Wind

  7. May 12, 1997 Interplanetary Event ICME propagates into bi-modal solar wind

  8. May 12, 1997 Interplanetary Event Fast stream follows the ICME

  9. May 12, 1997 Interplanetary Event ICME propagates into enhanced density at CIR

  10. May 12, 1997 Interplanetary Event IMF is distorted by shock compression and draping around ICME

  11. May 12, 1997 Interplanetary Event

  12. May 12, 1997 Interplanetary Event

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