ROSES ID: NNH10ZDA001N Selection Year: 2011
Program Element: Solar Dynamics Observatory
Principal Investigator: David Hathaway
Affiliation(s): NASA Marshall Space Flight Center, NSSTC
Project Member(s):
Upton, Lisa A Graduate/Undergraduate Student null
Summary:
We will investigate the transport of magnetic flux elements embedded in the Sun's surface shear layer using data from HMI. The transport of magnetic flux by flows in the surface shear layer is crucial to the evolution of the Sun's global magnetic field which in turn serves as the inner boundary condition for space weather forecasting. The evolution of the global field is the source of changes involved in producing open field regions (with associated high-speed solar wind streams) and in triggering prominence eruptions and coronal mass ejections. The poleward transport of magnetic flux by meridional flow and diffusion is responsible for producing the polar fields that successfully forecast the amplitude of the following solar cycles.Performance Year | Reference | Investigation Type | Actions |
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1 | Hathaway, David H.; (2011), The Sun's Shallow Meridiona... | not set | |
1 | Hathaway, David H.; (2012), Supergranules as Probes of Solar... | not set | |
1 | Hathaway, David H.; (2012), Supergranules as Probes of the S... | not set |
Performance Year | Reference | Actions |
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1 | Hathaway, David H.; (2011), The Sun's Meridional Circul... | |
1 | Rightmire, Lisa; Hathaway, D.; (2011), Magnetic Element Meri... | |
1 | Hathaway, D. H.; (2011), What Supergranule Flow Models tell ... | |
1 | Rightmire-Upton, Lisa; Hathaway, D. H.; (2012), Axisymmetric... | |
1 | Hathaway, David H.; Upton, Lisa; (2016), Predicting the Ampl... |