HR: 1330h
AN: SH13A-07    [Abstracts]
TI: Numerical Heliospheric Simulation of Evolving Ambient Solar Wind and Interplanetary Magnetic Field
AU: * Odstrcil, D
EM: dusan.odstrcil@noaa.gov
AF: University of Colorado/CIRES, 216 UCB, Boulder, CO 80309 United States
AU: * Odstrcil, D
EM: dusan.odstrcil@noaa.gov
AF: NOAA/Space Environment Center, 325 Broadway, Boulder, CO 80305 United States
AU: Arge, C N
EM: nick.arge@hanscom.af.mil
AF: Air Force Research Laboratory/VSBXS, 29 Randolph Road, Hanscom AFB, MA 01731 United States
AU: Pizzo, V J
EM: vic.pizzo@noaa.gov
AF: NOAA/Space Environment Center, 325 Broadway, Boulder, CO 80305 United States
AB: Recent advances in numerical methods and computer systems make it possible to tackle complicated, more realistic ambient and transient solar wind flows. Essential to this effort are the boundary conditions that drive 3-D MHD heliospheric models. We have used the improved source-surface model developed at NOAA/SEC Boulder [Arge et al., 2003, 2004] to derive solar wind parameters at 21.5 Rs. Various approaches and data sources are used and the numerical results obtained are compared with spacecraft observations at the Earth. Particular attention is given to the incorporation of daily updated source surface maps, which can be used to simulate an evolving ambient solar wind and interplanetary magnetic field.
DE: 2134 Interplanetary magnetic fields
DE: 2164 Solar wind plasma
DE: 7843 Numerical simulation studies
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2005 Joint Assembly