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Accession Number ADA569481
Title New Method for Coupling the Potential Field Source Surface and the Schatten Current Sheet Models.
Publication Date Sep 2012
Media Count 18p
Personal Author L. R. Mayer
Abstract The Wang-Sheeley-Arge (WSA) model describes the magnetic field configuration of the corona and is used, in combination with other models, to predict the global solar wind out past earth days in advance. It is routinely used for both AF and civilian space weather forecasting purposes. WSA is comprised of two coupled models: (1) the Potential Field Source Surface (PFSS) model with a domain extending out to several solar radii above the Sun's surface and (2) the Schatten Current Sheet (SCS) model used to project the solution out into the hypersonic interplanetary flow regime some 20 Rs or more above the solar surface. Three major and several minor improvements have been made to the Wang-Sheeley-Arge (WSA) coronal model that remedies well known model weaknesses and problems. These changes, described in this final report, significantly improve the model's predictive performance and further enhance its usefulness as a space weather forecast model.
Keywords Configurations
Coronas
Coupling(Interaction)
Electrical corona
Hypersonic characteristics
Hypersonic flow
Magnetic fields
Solar structure
Solar wind
Space environments
Weather forecasting


 
Source Agency Non Paid ADAS
NTIS Subject Category 46 - Physics
54 - Astronomy & Astrophysics
Corporate Author Colorado Univ. at Boulder. Cooperative Inst. for Research in the Environmental Sciences.
Document Type Technical report
Title Note Final rept. 2 Sep 2008-24 Sep 2012.
NTIS Issue Number 1313
Contract Number FA8718-08-C-0024

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