Physics
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsh33a1076l&link_type=abstract
American Geophysical Union, Fall Meeting 2007, abstract #SH33A-1076
Physics
7924 Forecasting (2722)
Scientific paper
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.
Arge Charles Nickolos
de Pater Imke
Galvin Antoinette B.
Jian Lan K.
Lee Chong OH
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