38 Nlfff PPTs View free & download

NLFFF Energy Measurement of AR8210 PowerPoint PPT Presentation

NLFFF Energy Measurement of AR8210 - They do not look much different, except that the loops are higher, and there are ... The total energy increases by about 10% for this time period. ...

They do not look much different, except that the loops are higher, and there are ... The total energy increases by about 10% for this time period. ...

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Observations and NLFFF Modeling of AR 10953 PowerPoint PPT Presentation

Observations and NLFFF Modeling of AR 10953 - Harvard-Smithsonian Center for Astrophysics, USA. 2. Purple ... Open question: Why does the heating not propagate to the chromosphere where EUV flare occurs? ...

Harvard-Smithsonian Center for Astrophysics, USA. 2. Purple ... Open question: Why does the heating not propagate to the chromosphere where EUV flare occurs? ...

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Magnetic Field Extrapolations And Current Sheets PowerPoint PPT Presentation

Magnetic Field Extrapolations And Current Sheets - We hypothesize that, since relaxation-based NLFFF techniques tend to smooth ... Free energy is the energy difference between the actual and potential field energies. ...

We hypothesize that, since relaxation-based NLFFF techniques tend to smooth ... Free energy is the energy difference between the actual and potential field energies. ...

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Nonlinear Force Free Field Extrapolation PowerPoint PPT Presentation

Nonlinear Force Free Field Extrapolation - Can NLFFF modeled fields reproduce changes of coronal structure seen in observations? ... Can NLFFF reproduce changes of corona? ( cont.) 19. Yang Liu ...

Can NLFFF modeled fields reproduce changes of coronal structure seen in observations? ... Can NLFFF reproduce changes of corona? ( cont.) 19. Yang Liu ...

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Non-linear FFF Model PowerPoint PPT Presentation

Non-linear FFF Model - Non-linear FFF Model J.McTiernan 17-May-2004 Optimization method (cont): Iterative process, start with Potential field, extrapolated from magnetogram.

Non-linear FFF Model J.McTiernan 17-May-2004 Optimization method (cont): Iterative process, start with Potential field, extrapolated from magnetogram.

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SDO/HMI Products From Vector Magnetograms PowerPoint PPT Presentation

SDO/HMI Products From Vector Magnetograms - Yang Liu Stanford University yliu@solar.stanford.edu HMI Science Analysis Plan SDO/HMI Products From Vector Magnetograms Yang Liu Stanford University yliu@ ...

Yang Liu Stanford University yliu@solar.stanford.edu HMI Science Analysis Plan SDO/HMI Products From Vector Magnetograms Yang Liu Stanford University yliu@ ...

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B. T. Welsch (welsch@ssl.berkeley.edu) Space Sciences Lab, Univ. of California, Berkeley, CA 94720-7450 PowerPoint PPT Presentation

B. T. Welsch (welsch@ssl.berkeley.edu) Space Sciences Lab, Univ. of California, Berkeley, CA 94720-7450 - We used LCT to derive flows between pairs of boxcar-averaged magnetograms. ... Variance estimates were determined by shifting boxcar endpoints. ...

We used LCT to derive flows between pairs of boxcar-averaged magnetograms. ... Variance estimates were determined by shifting boxcar endpoints. ...

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On the Application of the Boundary Element Method in Coronal Magnetic Field Reconstruction - On the Application of the Boundary Element Method in Coronal Magnetic Field Reconstruction

On the Application of the Boundary Element Method in Coronal Magnetic Field Reconstruction

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Inductive Local Correlation Tracking or, Getting from One Magnetogram to the Next PowerPoint PPT Presentation

Inductive Local Correlation Tracking or, Getting from One Magnetogram to the Next - crop the resulting images, keeping only signficant regions; ... correlation function between the two cropped images, using standard Fast Fourier ...

crop the resulting images, keeping only signficant regions; ... correlation function between the two cropped images, using standard Fast Fourier ...

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ILCTDerived Flows are Consistent with Induction Eqns Normal Component' PowerPoint PPT Presentation

ILCTDerived Flows are Consistent with Induction Eqns Normal Component' - Can we extend ILCT to LOS data sets? , where. Near disk center, we can approximate BLOS Bz. ... To decompose ILCT flow, uILCT , into (vx, vy, vz), we need B at ...

Can we extend ILCT to LOS data sets? , where. Near disk center, we can approximate BLOS Bz. ... To decompose ILCT flow, uILCT , into (vx, vy, vz), we need B at ...

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D-1 : M3-Magnetic Field Data Products PowerPoint PPT Presentation

D-1 : M3-Magnetic Field Data Products - Local scale by Abbett & Wu??? Global scale by Linker et al? ... Vector magnetic field on the photosphere (180 degree ambiguity resolved) ...

Local scale by Abbett & Wu??? Global scale by Linker et al? ... Vector magnetic field on the photosphere (180 degree ambiguity resolved) ...

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I: C4/C6/M8: Coronal Energy Inputs PowerPoint PPT Presentation

I: C4/C6/M8: Coronal Energy Inputs - Task 1B: measure and map the magnetic free energy ... IX: Business plan: Resources ... X: Business plan: Implementation [Define key milestones, test procedures, ...

Task 1B: measure and map the magnetic free energy ... IX: Business plan: Resources ... X: Business plan: Implementation [Define key milestones, test procedures, ...

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Flows in NOAA AR 8210: An overview of MURI progress to thru Feb. PowerPoint PPT Presentation

Flows in NOAA AR 8210: An overview of MURI progress to thru Feb. - Modelers prescribe fields and flows (B, v) to drive eruptions in MHD simulations ... and best guess at initial field topology (also just presented) ...

Modelers prescribe fields and flows (B, v) to drive eruptions in MHD simulations ... and best guess at initial field topology (also just presented) ...

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Preliminary Results from Nonlinear Field Extrapolations using Hinode Boundary Data PowerPoint PPT Presentation

Preliminary Results from Nonlinear Field Extrapolations using Hinode Boundary Data - Karel Schrijver, Tom Metcalf, Graham Barnes, Bruce Lites, Ted Tarbell, ... Kanya Kusano, St phane R gnier, Julia Thalmann, Marcel Fuhrmann. Rationale ...

Karel Schrijver, Tom Metcalf, Graham Barnes, Bruce Lites, Ted Tarbell, ... Kanya Kusano, St phane R gnier, Julia Thalmann, Marcel Fuhrmann. Rationale ...

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Comparing Free Energies Estimates for AR 8210 PowerPoint PPT Presentation

Comparing Free Energies Estimates for AR 8210 - Can we accurately estimate the evolution of free energy? ... use new magnetographs (Solar-B /FPP, SOLIS VSM, SDO/HMI) to predict coronal energy release? ...

Can we accurately estimate the evolution of free energy? ... use new magnetographs (Solar-B /FPP, SOLIS VSM, SDO/HMI) to predict coronal energy release? ...

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Determining the 3D Magnetic Field Geometry PowerPoint PPT Presentation

Determining the 3D Magnetic Field Geometry - (blue='observed', black=model) A: B: BBSO MDI, 2005/10/10, 17:30UT. Feb. 2006 ... Develop quantitative methods for comparing 3D models with observed ...

(blue='observed', black=model) A: B: BBSO MDI, 2005/10/10, 17:30UT. Feb. 2006 ... Develop quantitative methods for comparing 3D models with observed ...

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SDOHMI Productions From Vector Magnetograms PowerPoint PPT Presentation

SDOHMI Productions From Vector Magnetograms - Prediction of IMF & solar wind speed. 'minimum' energy method (Metcalf, 1994). 'structure minimization' method (Georgoulis et al, 2004) ...

Prediction of IMF & solar wind speed. 'minimum' energy method (Metcalf, 1994). 'structure minimization' method (Georgoulis et al, 2004) ...

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3D Sun Loop Trace: A Tool for Stereoscopy of Coronal Loops for STEREO PowerPoint PPT Presentation

3D Sun Loop Trace: A Tool for Stereoscopy of Coronal Loops for STEREO - 1. 3D Sun Loop Trace: A Tool for. Stereoscopy of Coronal Loops for STEREO. Jean Lorre ... Step 1 - User selects same loop in both images using cursor ...

1. 3D Sun Loop Trace: A Tool for. Stereoscopy of Coronal Loops for STEREO. Jean Lorre ... Step 1 - User selects same loop in both images using cursor ...

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Pr - Prsentation PowerPoint

Prsentation PowerPoint

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HMI Magnetic Products PowerPoint PPT Presentation

HMI Magnetic Products - Azimuth (phi) relative to solar north. Magnetic line-of sight velocity ... The three panels show Inclination, Azimuth & Magnetic Field Strength as observed ...

Azimuth (phi) relative to solar north. Magnetic line-of sight velocity ... The three panels show Inclination, Azimuth & Magnetic Field Strength as observed ...

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HMI Magnetic Products - HMI Magnetic Products & Pipeline http://jsoc.stanford.edu/jsocwiki/Lev1Doc HMI Magnetic Field Products Line-of-sight magnetic field will be computed from Doppler ...

HMI Magnetic Products & Pipeline http://jsoc.stanford.edu/jsocwiki/Lev1Doc HMI Magnetic Field Products Line-of-sight magnetic field will be computed from Doppler ...

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Flare Energy BuildUp in a Decaying Active Region Near a Coronal Hole - Flare Energy BuildUp in a Decaying Active Region Near a Coronal Hole

Flare Energy BuildUp in a Decaying Active Region Near a Coronal Hole

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Overview of Magnetic Field Products: A Preliminary Plan PowerPoint PPT Presentation

Overview of Magnetic Field Products: A Preliminary Plan - Evolution of small-scale magnetic elements (coronal heating) ... Connectivity & separatrix. Energy flux through the photosphere. Coronal/Helios. fields. ...

Evolution of small-scale magnetic elements (coronal heating) ... Connectivity & separatrix. Energy flux through the photosphere. Coronal/Helios. fields. ...

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HMI Magnetic Field Products jsoc.stanford.edu PowerPoint PPT Presentation

HMI Magnetic Field Products jsoc.stanford.edu - HMI Magnetic Field Products jsoc.stanford.edu Line-of-sight magnetic field will be computed from Doppler Velocity in two polarizations, as is done for MDI.

HMI Magnetic Field Products jsoc.stanford.edu Line-of-sight magnetic field will be computed from Doppler Velocity in two polarizations, as is done for MDI.

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Science Objectives, Observables, and Magnetic Data Product Teams PowerPoint PPT Presentation

Science Objectives, Observables, and Magnetic Data Product Teams - SP51B-13 The Helioseismic & Magnetic Imager Magnetic Field Data Products HMI Data Processing Data Product HMI Data Internal rotation (r, ) (0

SP51B-13 The Helioseismic & Magnetic Imager Magnetic Field Data Products HMI Data Processing Data Product HMI Data Internal rotation (r, ) (0

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HMI - From 2D data arrays, f1(x1,x2) & f2(x1,x2), find vector flow v(x1,x2) consistent ... (2005, in prep): Use (i) 'minium structure' & (ii) 'coplanarity' assumptions, ...

From 2D data arrays, f1(x1,x2) & f2(x1,x2), find vector flow v(x1,x2) consistent ... (2005, in prep): Use (i) 'minium structure' & (ii) 'coplanarity' assumptions, ...

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HMI Magnetic Data Summary - HMI Magnetic Data Summary

HMI Magnetic Data Summary

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Mapping Free Energy in the Solar Atmosphere PowerPoint PPT Presentation

Mapping Free Energy in the Solar Atmosphere - instability accord with this picture. (But cf. ... X-ray spectral radiance LX vs. total unsigned magnetic flux for solar and stellar objects. ...

instability accord with this picture. (But cf. ... X-ray spectral radiance LX vs. total unsigned magnetic flux for solar and stellar objects. ...

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HMI Magnetic Products - HMI Magnetic Products & Pipeline http://jsoc.stanford.edu/jsocwiki/Lev1Doc

HMI Magnetic Products & Pipeline http://jsoc.stanford.edu/jsocwiki/Lev1Doc

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Overview of XRT Performance - Overview of XRT Performance

Overview of XRT Performance

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Space Weather Forecast With HMI Magnetograms: Proposed data products PowerPoint PPT Presentation

Space Weather Forecast With HMI Magnetograms: Proposed data products - Line-of-sight magnetograms cadence TBD (as high as 45 sec) ... Coronal field models cadence TBD; Global PFSS, Hybrid, MHD. ...

Line-of-sight magnetograms cadence TBD (as high as 45 sec) ... Coronal field models cadence TBD; Global PFSS, Hybrid, MHD. ...

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V: C5: Coronal Seismology PowerPoint PPT Presentation

V: C5: Coronal Seismology - By studying the properties, excitation, propagation and decay of these oscillations/waves, we can reveal fundamental physical properties of the TR ...

By studying the properties, excitation, propagation and decay of these oscillations/waves, we can reveal fundamental physical properties of the TR ...

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A Data Driven Magnetohydrodynamic MHD Model of Active Region Evolution as a Tool for SDOHMI Data Ana PowerPoint PPT Presentation

A Data Driven Magnetohydrodynamic MHD Model of Active Region Evolution as a Tool for SDOHMI Data Ana - ... and density model to drive the model to obtain the following physical properties. ... This scheme achieves the second order accuracy both temporally and spatially. ...

... and density model to drive the model to obtain the following physical properties. ... This scheme achieves the second order accuracy both temporally and spatially. ...

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What can we learn from nonlinear forcefree extrapolations PowerPoint PPT Presentation

What can we learn from nonlinear forcefree extrapolations - What are the most suitable magnetic configurations for flares and CMEs? ... injection of helicity through photosphere, expelled in CMEs (R gnier et al. 2005) ...

What are the most suitable magnetic configurations for flares and CMEs? ... injection of helicity through photosphere, expelled in CMEs (R gnier et al. 2005) ...

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DataDriven Simulations of AR8210 PowerPoint PPT Presentation

DataDriven Simulations of AR8210 - Determining electric fields and flows consistent with the ... Local Correlation Tracking' ... determined via local correlation tracking (applied to ...

Determining electric fields and flows consistent with the ... Local Correlation Tracking' ... determined via local correlation tracking (applied to ...

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Mapping Free Energy in the Solar Atmosphere - Depends on photospheric (Bx, By, Bz), (vx ,vy,vz), and (Bx(P), By(P) ... Longcope et al. (2005) quantified EUV loops' spatial and topological properties. ...

Depends on photospheric (Bx, By, Bz), (vx ,vy,vz), and (Bx(P), By(P) ... Longcope et al. (2005) quantified EUV loops' spatial and topological properties. ...

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Top level: - Hare-hounds exercise for global mode-parameter estimation based on an artificial ... improve mode estimation methods, start hare-hounds exercise ...

Hare-hounds exercise for global mode-parameter estimation based on an artificial ... improve mode estimation methods, start hare-hounds exercise ...

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Sheared, Twisted and Tangled: A New View of the Corona from XRT - Sheared, Twisted and Tangled: A New View of the Corona from XRT

Sheared, Twisted and Tangled: A New View of the Corona from XRT

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Nlfff PowerPoint PPT Presentations