HR: 1330h
AN: SH42B-0525    [PDF]
TI: Prediction of Solar Wind Speed and B\_r using CSSS Model
AU: * Balachandran, B
EM: bala@quake.stanford.edu
AF: Stanford University, 445 Via Pueblo HEPL Annex Stanford University, Palo Alto, CA 94304 United States
AU: Zhao, X
EM: zhao@quake.stanford.edu
AF: Stanford University, 445 Via Pueblo HEPL Annex Stanford University, Palo Alto, CA 94304 United States
AB: The Current--Sheet Source Surface (CSSS) model developed by Zhao and Hoeksema (1995) has been shown to reproduce the radial variation of non--radial mid--latitude helmet streamers between 2.5 and 30 R\_sun. The CSSS model has the advatage of a cusp surface at the cusp point of coronal streamers, which divides the corona into three regions, one bounded by the photosphere and the cusp surface, second, between the cusp surface and the source surface located at 15 R\_sun, and the third one, beyond the source surface. In the model, the magnetic field between the cusp surface and the source surface are all open but not necessarily radial. Also, the source surface, placed at 15 R\_sun, is closer to the Alfven critical point than the one in traditional Potential Field Source Surface model. Moreover, the CSSS model takes horizontal currents in the corona into consideration. The interplanetary magnetic field (IMF) observed by Ulysses does not show a latitudinal variation which again was successfully obtained by CSSS model.We present the preliminary results of the prediction of solar wind speed and the interplanetary magnetic field B\_r using the CSSS model.
DE: 2164 Solar wind plasma
DE: 2169 Sources of the solar wind
DE: 7509 Corona
DE: 7513 Coronal mass ejections
SC: SPA - Solar and Heliospheric Physics [SH]
MN: 2003 Fall Meeting