Detection of Emerging Active Regions and Forecast of Their Evolution and Activity by Time-Distance Helioseismology
ROSES ID: NNH06ZDA001N Selection Year: 2007
Program Element: Focused Science Topic
Principal Investigator: Philip Scherrer
Affiliation(s): Stanford University
Project Member(s):
Duvall, Thomas L. Co-I NASA/GSFC
Zhao, Junwei Postdoctoral Associate null
Couvidat, Sebastien Paul Postdoctoral Associate Stanford University
Kosovichev, Alexander G Co-I/Science PI New Jersey Institute of Technology
Stein, Robert Collaborator Michigan State University
Georgobiani, Dali Collaborator Michigan State University
Parchevsky, Konstantin Postdoctoral Associate Stanford University
Summary:
We propose to develop time-distance helioseismology
techniques for the application of detecting emerging active
regions before they become visible. Techniques will
also be developed for predicting active region
growth, decay and maximum activity stage. The work will
include development of deep-focus time-distance data analysis methods for imaging weak and rapidly
evolving sound-speed structures and mass flows associated
with new emerging magnetic flux in the convection zone,
monitoring and predicting the growth and complexity of the
subsurface structures, and also a search for the deep nests
of long-living complexes of activity ("active longitudes")
and their relationship to the global circulation of the Sun.
An important goal of this investigation is to develop and
deliver software for deep-focus time-distance analysis and
inversions of Solar-B and SDO data.
Publications:
Performance Year | Reference | Investigation Type | Actions |
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1 | Nigam, R.; Kosovichev, A. G.; Scherrer, P. H.; (2007)...
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1 | Zhao, J.; Couvidat, S.; Bogart, R. S.; Parchevsky, K...
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Presentations:
Performance Year | Reference | Actions |
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1 | Duvall, T. L.; Zhao, J.; Couvidat, S.; Parchevsky, K...
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