September 2006 CISM All Hand Meeting Progress in the Past Year and Plan for Next Year Yang Liu and the Solar Group in Stanford University

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Presentation transcript:

September 2006 CISM All Hand Meeting Progress in the Past Year and Plan for Next Year Yang Liu and the Solar Group in Stanford University

September 2006 CISM All Hand MeetingOutline New data expected to be used in next year; New data expected to be used in next year; Synoptic maps of magnetic field from MDI; Synoptic maps of magnetic field from MDI; Cone model update. Cone model update.

September 2006 CISM All Hand Meeting New Data SOLIS vector magnetic field data (more detail). SOLIS vector magnetic field data (more detail).more detailmore detail Full disk vector magnetic field data are expected to be available in the coming months. Full disk vector magnetic field data are expected to be available in the coming months. Solar-B vector magnetic field data (more detail). Solar-B vector magnetic field data (more detail).more detailmore detail Active regions’ vector magnetic field measured continuously from space with high spatial resolution and cadence using both spectro-polarimeter and filter-type magnetograph. Active regions’ vector magnetic field measured continuously from space with high spatial resolution and cadence using both spectro-polarimeter and filter-type magnetograph. Line-of-sight magnetic field data from update GONG instruments. Line-of-sight magnetic field data from update GONG instruments. High cadence: 1 minute. High cadence: 1 minute. Better spatial resolution than the old instruments: 800x800 pixels. Better spatial resolution than the old instruments: 800x800 pixels.

September 2006 CISM All Hand Meeting New data How to use vector magnetic field data? How to use vector magnetic field data? Does it still make sense to generate synoptic charts of vector magnetic field (change of the transverse magnetic field could be within hours); Does it still make sense to generate synoptic charts of vector magnetic field (change of the transverse magnetic field could be within hours); Is it more reasonable to have daily update maps/synoptic frames of vector magnetic field? Is it more reasonable to have daily update maps/synoptic frames of vector magnetic field? How to incorporate vector magnetic field data into other modeling; How to incorporate vector magnetic field data into other modeling; If doable, what requirements do the modelers want on the vector data, such as cadence, resolution, data format, etc… If doable, what requirements do the modelers want on the vector data, such as cadence, resolution, data format, etc… …

September 2006 CISM All Hand Meeting MDI synoptic maps Corrections have been evaluated and applied to the MDI synoptic maps (more detail). Corrections have been evaluated and applied to the MDI synoptic maps (more detail).more detailmore detail Correction for offset; Correction for offset; Correction for calibration; Correction for calibration; Polar field interpolation. Polar field interpolation. New strategy has been suggested to minimize variation of the noise level over the maps; New strategy has been suggested to minimize variation of the noise level over the maps; Modify the selection window to normalize the number of single remapped magnetogram for every pixel in the final synoptic map. Modify the selection window to normalize the number of single remapped magnetogram for every pixel in the final synoptic map. Various formats of synoptic maps are planned to be made. Various formats of synoptic maps are planned to be made. Synoptic charts; Synoptic charts; Synoptic frames with various window sizes; Synoptic frames with various window sizes; Daily update maps with various window sizes. Daily update maps with various window sizes.

September 2006 CISM All Hand Meeting Cone model update Improved cone model shows potential to model various CMEs’ geometric structures (more detail). Improved cone model shows potential to model various CMEs’ geometric structures (more detail).more detailmore detail Circular cone-like models (having a circular base) can be modeled with uniqueness of solution (including conic, ice cream conic and spherical conic models), but only a fraction of the halo CMEs can be modeled so far; Circular cone-like models (having a circular base) can be modeled with uniqueness of solution (including conic, ice cream conic and spherical conic models), but only a fraction of the halo CMEs can be modeled so far; Elliptic-like models: the solution is not unique, but can be solved using multiple observations from different angles. We have been developing codes, almost ready for the upcoming STEREO data. Elliptic-like models: the solution is not unique, but can be solved using multiple observations from different angles. We have been developing codes, almost ready for the upcoming STEREO data.