HR: 0800h
AN: SH11A-0249    [Abstracts]
TI: Predicting the Ambient Solar Wind Emerging from Sources Near Active Regions
AU: * Arge, C N
EM: nick.arge@hansocm.af.mil
AF: AFRL/Space Vehicles Directorate, 29 Randolph Road , Hanscom AF Base, Ma 01731 United States
AU: de Toma, G
EM: detoma@hao.ucar.edu
AF: HAO/NCAR, 3080 Center Green Dr., Boulder, CO 80301 United States
AB: A number of studies [Owens 2005; Arge 2004, 2003, 2000] have shown that the Wang-Sheeley-Arge (WSA) solar wind model is relatively successful at predicting the ambient solar wind speed and interplanetary polarity over the solar cycle. However, the model appears to fail more often when the source of the solar wind lies near an active region than when it emerges from a traditional coronal hole with weak magnetic field strength. In this paper, we investigate the nature and extent of this particular failure mode by comparing the predictive performance of the WSA model for solar wind sources near and far from active regions.
DE: 2169 Solar wind sources
DE: 7509 Corona
DE: 7511 Coronal holes
DE: 7524 Magnetic fields
DE: 7529 Photosphere
SC: SPA-Solar and Heliospheric Physics [SH]
MN: Fall Meeting 2005