| NSF Org: |
AGS Division of Atmospheric and Geospace Sciences |
| Recipient: |
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| Initial Amendment Date: | September 14, 2009 |
| Latest Amendment Date: | September 14, 2009 |
| Award Number: | 0936665 |
| Award Instrument: | Standard Grant |
| Program Manager: |
Therese Moretto Jorgensen
AGS Division of Atmospheric and Geospace Sciences GEO Directorate for Geosciences |
| Start Date: | September 15, 2009 |
| End Date: | August 31, 2012 (Estimated) |
| Total Intended Award Amount: | $277,983.00 |
| Total Awarded Amount to Date: | $277,983.00 |
| Funds Obligated to Date: |
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| ARRA Amount: | $277,983.00 |
| History of Investigator: |
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| Recipient Sponsored Research Office: |
323 DR MARTIN LUTHER KING JR BLVD NEWARK NJ US 07102-1824 (973)596-5275 |
| Sponsor Congressional District: |
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| Primary Place of Performance: |
323 DR MARTIN LUTHER KING JR BLVD NEWARK NJ US 07102-1824 |
| Primary Place of
Performance Congressional District: |
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| Unique Entity Identifier (UEI): |
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| Parent UEI: |
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| NSF Program(s): | SOLAR-TERRESTRIAL |
| Primary Program Source: |
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| Program Reference Code(s): |
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| Program Element Code(s): |
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| Award Agency Code: | 4900 |
| Fund Agency Code: | 4900 |
| Assistance Listing Number(s): | 47.050 |
ABSTRACT
This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).
The principal investigator (PI) will study the evolution of coronal magnetic configurations and the corresponding free magnetic energy that is associated with solar explosive phenomena, such as flares and coronal mass ejections (CMEs). She plans to use photospheric vector magnetograms from the Hinode satellite and from the forthcoming Solar Dynamic Observatory (SDO) as boundary conditions for reconstructing the 3D coronal magnetic field. The PI will apply multigrid-like optimization methods to this boundary data to extrapolate the non-linear force-free (NLFF) coronal magnetic field, and ultimately, to quantitatively estimate the free energy and nonpotentiality of the coronal magnetic field.
The PI will focus on 3D magnetic configurations, such as magnetic shear, magnetic inclination angle, and the electric current system, while investigating the temporal evolution of free magnetic energy and flare productivity of active regions. She anticipates that this work will reveal the pre-eruption configuration of unstable magnetic structures, shed light on the complexity and energy budget of solar active regions, and help establish the prediction accuracy of specific flare and CME models in community use today.
Among other broader impacts, this effort will help improve the mission analysis of data to be obtained from the Helioseismic and Magnetic Imager (HMI) instrument on the upcoming SDO spacecraft. The PI also expects her observational results to enhance the modeling and forecasting of flares and CMEs. This project has a strong education and mentoring component, with the young female PI acting as an advisor and supervisor to Ph.D. students.
PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH
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