HR: 1340h
AN: SH33A-1076    [Abstracts]
TI: Solar Wind Structure at Solar Minimum: 3D MHD Solar Wind Model Results Compared with STEREO and ACE Observations
AU: * Lee, C O
EM: clee@ssl.berkeley.edu
AF: Space Sciences Lab, UC Berkeley, 7 Gauss Way, Berkeley, CA 94720, United States
AU: Luhmann, J G
EM: jgluhman@ssl.berkeley.edu
AF: Space Sciences Lab, UC Berkeley, 7 Gauss Way, Berkeley, CA 94720, United States
AU: de Pater, I
EM: imke@astron.berkeley.edu
AF: Department of Earth & Planetary Science, 601 Campbell Hall, Berkeley, CA 94720, United States
AU: Odstrcil, D
EM: Dusan.Odstrcil@noaa.gov
AF: CIRES/SEC/NOAA Univ. of Colorado, 216 UCB, Boulder, CO 80309, United States
AU: MacNeice, P
EM: Peter.MacNeice@gsfc.nasa.gov
AF: NASA GSFC, Community Coordinated Modeling Center, NASA/GSFC Code 696, Greenbelt, MD 20771, United States
AU: Arge, C N
EM: Nick.Arge@Kirtland.af.mil
AF: AFRL/VSBXS, 29 Randolph Road, Hanscom AFB, MA 01731, United States
AU: Riley, P
EM: Pete.Riley@saic.com
AF: SAIC, 10260 Campus Point Dr., San Diego, CA 92121, United States
AU: Schroeder, P
EM: peters@ssl.berkeley.edu
AF: Space Sciences Lab, UC Berkeley, 7 Gauss Way, Berkeley, CA 94720, United States
AU: Leske, R A
EM: ral@srl.caltech.edu
AF: California Institute of Technology, MC: 220-47, Pasadena, CA 91125, United States
AU: Jian, L K
EM: lanjian@ucla.edu
AF: Institute of Geophysics and Planetary Physics/UCLA, UCLA, Los Angeles, CA 90095,
AU: Russell, C T
EM: ctrussel@igpp.ucla.edu
AF: Institute of Geophysics and Planetary Physics/UCLA, UCLA, Los Angeles, CA 90095,
AU: Mason, G M
EM: glenn.mason@jhuapl.edu
AF: Johns Hopkins University/Applied Physics Lab, 11100 Johns Hopkins Rd., Laurel, MD 20723, United States
AU: Galvin, A B
EM: toni.galvin@unh.edu
AF: Space Science Center, University of New Hampshire, EOS SSC Morse Hall, Durham, NH 03824, United States
AU: Simunac, K D
EM: ksimunac@cisunix.unh.edu
AF: Space Science Center, University of New Hampshire, EOS SSC Morse Hall, Durham, NH 03824, United States
AU: McGregor, S
EM: slmic@bu-ast.bu.edu
AF: Boston University, 725 Commonwealth Avenue, Boston, MA 02215, United States
AB: During the present period of low solar activity, STEREO-A and -B have been observing solar wind structure where quasi-steady corotating interaction regions (CIRs) are prevalent. We recently used several models developed by CISM (Center for Integrated Space weather Modeling), now available at the Community Coordinated Modeling Center (CCMC), to analyze the solar control of the declining phase solar wind observed by ACE at L1. The WSA/ENLIL and MAS/ENLIL models describe the steady solar wind structure and its origins in the corona, based on photospheric magnetic field synoptic maps. We extend our study by comparing the model results with spacecraft measurements on both STEREO spacecrafts. This comparison demonstrates the ability of these 3D MHD models to describe multi-point observations. In particular, the results provide a test on the steadiness of CIR structures over modest baselines around solar minimum.
DE: 7924 Forecasting (2722)
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2007 Fall Meeting