The importance of boundary evolution for solar-wind modelling.

ABSTRACT: The solar wind is a continual outflow of plasma and magnetic field from the Sun's upper atmosphere-the corona-that expands to fills the solar system. Variability in the near-Earth solar-wind conditions can produce adverse space weather that impacts ground- and space-based technologies. Consequently, numerical fluid models of the solar wind are used to forecast conditions a few days ahead. The solar-wind inner-boundary conditions are supplied by models of the corona that are, in turn, constrained by observations of the photospheric magnetic field. While solar eruptions-coronal mass ejections (CMEs)-are treated as time-dependent structures, a single coronal "snapshot" is typically used to determine the ambient solar-wind for a complete model run. Thus, all available time-history information

SUBMITTER: Owens MJ 

PROVIDER: S-EPMC11584705 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature