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HMI Science Analysis Plan
Magnetic Shear
Tachocline
Differential Rotation
Meridional Circulation
Near-Surface Shear Layer
Activity Complexes
Active Regions
Sunspots
Irradiance Variations
Flare Magnetic Configuration
Flux Emergence
Magnetic Carpet
Coronal energetics
Large-scale Coronal Fields
Solar Wind
Far-side Activity Evolution
Predicting A-R Emergence
IMF Bs Events
Brightness Images
Global
Helioseismology
Processing
Local Helioseismolog
y Processing
Filtergrams
Line-of-sightMagnetograms
Vector Magnetograms
DopplerVelocity
ContinuumBrightness
Line-of-SightMagnetic Field Maps
Coronal magneticField Extrapolations
Coronal andSolar wind models
Far-side activity index
Deep-focus v and cs
maps (0-200Mm)
High-resolution v and cs
maps (0-30Mm)
Carrington synoptic v and cs
maps (0-30Mm)
Full-disk velocity, v(r,Θ,Φ),
And sound speed, cs(r,Θ,Φ),
Maps (0-30Mm)
Internal sound speed,cs(r,Θ) (0<r<R)
Internal rotation Ω(r,Θ)(0<r<R)
Vector MagneticField Maps
Science ObjectiveData ProductProcessing
Observables
HMI Data
JSOC - HMI Pipeline
HMI Data Analysis Pipeline
DopplerVelocity
HeliographicDoppler velocity
maps
Tracked TilesOf Dopplergrams
StokesI,V
Filtergrams
ContinuumBrightness
Tracked full-disk1-hour averagedContinuum maps
Brightness featuremaps
Solar limb parameters
StokesI,Q,U,V
Full-disk 10-minAveraged maps
Tracked Tiles
Line-of-sightMagnetograms
Vector Magnetograms
Fast algorithm
Vector MagnetogramsInversion algorithm
Egression andIngression maps
Time-distanceCross-covariance
function
Ring diagrams
Wave phase shift maps
Wave travel times
Local wave frequency shifts
SphericalHarmonic
Time seriesTo l=1000
Mode frequenciesAnd splitting
Brightness Images
Line-of-SightMagnetic Field Maps
Coronal magneticField Extrapolations
Coronal andSolar wind models
Far-side activity index
Deep-focus v and cs
maps (0-200Mm)
High-resolution v and cs
maps (0-30Mm)
Carrington synoptic v and cs
maps (0-30Mm)
Full-disk velocity, v(r,Θ,Φ),
And sound speed, cs(r,Θ,Φ),
Maps (0-30Mm)
Internal sound speed,cs(r,Θ) (0<r<R)
Internal rotation Ω(r,Θ)
(0<r<R)
Vector MagneticField Maps
HMI DataData ProductProcessing
Level-0
Level-1
Magnetic FieldsStokes
I,VFiltergrams
StokesI,Q,U,V
Full-disk 10-minAveraged maps
Tracked Tiles
Line-of-sightMagnetograms
Vector MagnetogramsFast algorithm
Vector Magnetograms
Inversion algorithm
Line-of-SightMagnetic Field Maps
Coronal magneticField Extrapolations
Coronal andSolar wind models
Vector MagneticField Maps
Code: Stokes I,V,Lev0.5 V & LOS field
J. SchouS. Tomzcyk
Status: in development
Code: Stokes I,Q,U,V
J. SchouS. Tomzcyk
Status: in development
HMI Vector Field Pipeline & Products
Calibration and Correction of Filtergrams
Magnetic ObservablesHMI Data
Increase s/n:Standard HMI resolutionRebinned data (retains temporal resolution)
Averaged data (retains spatial resolution)
Vector MagneticField Maps
180 Degree Ambiguity SolverFast (potential or lfff);Slower but better.
Full disk vector magnetic field:In image coordinatesIn spherical coordinates
Vector magnetic field in active regions:In heliographic coordinatesIn image coordinates
Synoptic maps of vector field(B_r, B_theta, B_phi):
Standard synoptic charts;Synoptic frames;Daily update synoptic maps.
Field Inversion
Stokes I, Q, U, and V;Vector Magnetograms
(|B|, inclination, azimuth, …)
Filtergrams
HMI Vector Field Pipeline & Products
Calibration and Correction of Filtergrams
Magnetic ObservablesHMI Data
Increase s/n:Standard HMI resolutionRebinned data (retains temporal resolution)
Averaged data (retains spatial resolution)
Vector MagneticField Maps
180 Degree Ambiguity SolverFast (potential or lfff);Slower but better.
Full disk vector magnetic field:In image coordinatesIn spherical coordinates
Vector magnetic field in active regions:In heliographic coordinatesIn image coordinates
Synoptic maps of vector field(B_r, B_theta, B_phi):
Standard synoptic charts;Synoptic frames;Daily update synoptic maps.
Field Inversion
Stokes I, Q, U, and V;Vector Magnetograms
(|B|, inclination, azimuth, …)
Filtergrams
HINODE Spectropolarimetric Magnetic Field Inverted with HMI-like Algorithm by S. Tomczyk & J. Borrero (HAO)The three panels show Inclination, Azimuth & Magnetic Field Strength as observed May 7, 2007
0 180 -180 180 0 3097
HINODE Spectropolarimetric Magnetic Field Inverted with HMI-like Algorithm by S. Tomczyk & J. Borrero (HAO)The three panels show Inclination, Azimuth & Magnetic Field Strength as observed May 7, 2007
0 180 -180 180 0 3097
VECTOR MAGNETIC MAPS
Full disk vector field maps (standard)(full resolution, 10-minute cadence)
Vector magnetic field maps (on-request)(full disk, full resolution, 2-minute cadence)
Vector magnetic field maps (on-request)(AR patches, full resolution, 2-minute cadence)
Full disk vector field maps (standard)(full resolution, 6-hour cadence)
1-hour average vector magnetic field maps (standard)(full disk, full resolution, 6-hour cadence)
Vector magnetic field maps in AR patches (standard)(in heliographic coord., full res., 6-hour cadence)
Vector magnetic field maps (on-demand)(full disk, full resolution, 30-minute cadence)
Vector magnetic field maps (on-demand)(AR patches, full resolution, 30-minute cadence)
“Ambiguous” Observables
Magnetograms (standard)(full disk, full resolution,10-minute cadence?)
Magnetograms (on-request)(full disk, full resolution, 2-minute cadence)
Stokes I, Q, U and V (on-request).
Magnetograms (on-request)(AR patches, full resolution,2-minute cadence)
Magnetograms (standard)(full disk, full resolution,1-hour average)
SYNOPTIC PRODUCTS
Synoptic map (standard)
Synoptic frame (standard)(in a cadence of 1-day)
Daily update Synoptic map (standard)(in a cadence of 1-day)
Synoptic frame (on-demand)(in a cadence of 30-minute)
Daily update Synoptic map (on-demand)(in a cadence of 30-minute)
Synoptic frame (on-demand)(in a cadence of 30-minute)
Synoptic frame (on-request)(in a cadence of 2-minute)
Daily update Synoptic map (on-request)(in a cadence of 2-minute)
VECTOR MAGNETIC MAPS
Full disk vector field maps (standard)(full resolution, 10-minute cadence)
Vector magnetic field maps (on-request)(full disk, full resolution, 2-minute cadence)
Vector magnetic field maps (on-request)(AR patches, full resolution, 2-minute cadence)
Full disk vector field maps (standard)(full resolution, 6-hour cadence)
1-hour average vector magnetic field maps (standard)(full disk, full resolution, 6-hour cadence)
Vector magnetic field maps in AR patches (standard)(in heliographic coord., full res., 6-hour cadence)
Vector magnetic field maps (on-demand)(full disk, full resolution, 30-minute cadence)
Vector magnetic field maps (on-demand)(AR patches, full resolution, 30-minute cadence)
VECTOR MAGNETIC MAPS
Full disk vector field maps (standard)(full resolution, 10-minute cadence)
Vector magnetic field maps (on-request)(full disk, full resolution, 2-minute cadence)
Vector magnetic field maps (on-request)(AR patches, full resolution, 2-minute cadence)
Full disk vector field maps (standard)(full resolution, 6-hour cadence)
1-hour average vector magnetic field maps (standard)(full disk, full resolution, 6-hour cadence)
Vector magnetic field maps in AR patches (standard)(in heliographic coord., full res., 6-hour cadence)
Vector magnetic field maps (on-demand)(full disk, full resolution, 30-minute cadence)
Vector magnetic field maps (on-demand)(AR patches, full resolution, 30-minute cadence)
“Ambiguous” Observables
Magnetograms (standard)(full disk, full resolution,10-minute cadence?)
Magnetograms (on-request)(full disk, full resolution, 2-minute cadence)
Stokes I, Q, U and V (on-request).
Magnetograms (on-request)(AR patches, full resolution,2-minute cadence)
Magnetograms (standard)(full disk, full resolution,1-hour average)
“Ambiguous” Observables
Magnetograms (standard)(full disk, full resolution,10-minute cadence?)
Magnetograms (on-request)(full disk, full resolution, 2-minute cadence)
Stokes I, Q, U and V (on-request).
Magnetograms (on-request)(AR patches, full resolution,2-minute cadence)
Magnetograms (standard)(full disk, full resolution,1-hour average)
SYNOPTIC PRODUCTS
Synoptic map (standard)
Synoptic frame (standard)(in a cadence of 1-day)
Daily update Synoptic map (standard)(in a cadence of 1-day)
Synoptic frame (on-demand)(in a cadence of 30-minute)
Daily update Synoptic map (on-demand)(in a cadence of 30-minute)
Synoptic frame (on-demand)(in a cadence of 30-minute)
Synoptic frame (on-request)(in a cadence of 2-minute)
Daily update Synoptic map (on-request)(in a cadence of 2-minute)
SYNOPTIC PRODUCTS
Synoptic map (standard)
Synoptic frame (standard)(in a cadence of 1-day)
Daily update Synoptic map (standard)(in a cadence of 1-day)
Synoptic frame (on-demand)(in a cadence of 30-minute)
Daily update Synoptic map (on-demand)(in a cadence of 30-minute)
Synoptic frame (on-demand)(in a cadence of 30-minute)
Synoptic frame (on-request)(in a cadence of 2-minute)
Daily update Synoptic map (on-request)(in a cadence of 2-minute)
Line-of Sight Magnetic FieldStokes
I,VFiltergrams
Line-of-sightMagnetograms Line-of-Sight
Magnetic Field Maps
SynopticMagnetic Field Maps
Magnetic Footpoint Velocity Maps
Code: LOS magnetograms
J. SchouS. TomzcykR. Ulrich (cross calibration)
Status: in development
Code: LOS magnetic maps
T. HoeksemaR. Bogart
Status: in development
Code: Synoptic Magnetic Field Maps
T. HoeksemaE. Benevolenskaya X. ZhaoR. Ulrich
Status: in development
See Detail
Code: Velocity Maps of Magnetic Footpoints
Y. LiuG. Fisher
Status: Almost Ready to port
See Detail
Vector Magnetic FieldFiltergrams
StokesI,Q,U,V
Full-disk 10-minAveraged maps
Tracked Tiles
Vector MagnetogramsFast algorithm
Vector Magnetograms
Inversion algorithm
Coronal magneticField Extrapolations
Coronal andSolar wind models
Vector MagneticField Maps
Code: fastrackR. Bogart
Status: needs modifications for fields
Code: Vector Field Fast and Inversion Algorithms
J. SchouS. Tomzcyk
Status: in development
Code: Vector Field Maps & Ambiguity Resolution
T. HoeksemaY.LiuKD Leka,CORA
Status: in development
See Details
Code: Coronal Field Extrapolations
T.HoeksemaY.Liu, X.ZhaoC. SchrijverS.T. Wu
Status: in development
Additional 2 FTE ?
See Details
Code: Coronal Magnetic Field Topological Properties
J.LinkerV. Titov
Status: needs implementation
Code: Solar Wind Models
X.ZhaoK.HayashiJ.LinkerS.T. Wu
Status: in development
0.5 FTE?
See Details
Needs additional FTEs
Coronal andSolar wind Properties
Surface Plasma Flows
HMI Science Analysis Plan – Magnetic Topics
Filtergrams
Line-of-sightMagnetograms
Vector Magnetograms
Line-of-SightMagnetic Field Maps
Coronal Magnetic FieldExtrapolations (non MHD)
Vector MagneticField Maps
Magnetic Data Products
MagneticObservables
HMI Data
THoeksema
YLiu
JBeck, YLiu,
XPZhao, KHayashi
YLiu, Schrijver
THoeksema, JSchou, HAO
YLiu, JSchou,*HAO
ContinuumBrightness
RBush, JSchou
9-3A Magnetic Shear
1-1A Tachocline
3-1B Differential Rotation
2-1C Meridional Circulation
4-1D Near-Surface Shear Layer
6-2B Active Regions
7-2C Sunspots
12-3D Magnetic Carpet+Heating
10-3B Flare/CME Mag. Config
11-3C Flux Emergence
13-4A Coronal Energetics AIA]1
14-4B Large-scale B, Ph+Cor
15-4C Solar Wind + Evol, Struct
16-5A Far-side Activity Evolution
17-5B Predicting A-R Emergence
18-5C IMF Bs Events
5-2A Activity Complexes, Cycle
8-2D Irradiance Variations
19 Topology Structure over AR
Benevolenskaya, Bai
Hoeksema
Bai
Bush
Kosovichev
Kosovichev
Kosovichev
Beck
LM,Hayashi
YLiu
Hayashi, LM
YLiu LM
Schrijver, YLiu
XPZhao
Bai
Scherrer
Hayashi
Hayashi
??
20 B-Polar, Large/Small Int Benevolenskaya
Incomplete Magnetic Topic Group Affiliations (September, 2007)Tachocline - AKosovichev
Meridional Circulation - AKosovichev
Differential Rotation - AKosovichev
Near-surface Shear Layer - JBeck
Activity Complexes – Benevolenskaya, Bai, Hoeksema, Hayashi, Hurlburt, Gaizauskus, JHarvey
Active Regions – THoeksema, EBenevolenskaya, TBai, KHayashi, NHurlburt
Sunspots – TBai, THoeksema, EBenevolenskaya, NHurlburt
Irradiance Variations – RBush, TBerger, PBoerner
Magnetic Shear – YLiu, JBeck, KHayashi, AKosovichev, VYurchyshyn
Flare/CME Magnetic Config – Hayashi, LM, YLiu, XPZhao, Bai, Kosovichev, UC-B, HWang
Flux Emergence – YLiu, JBeck, Benevolenskaya, Hayashi, LM, BLites, Leka, HWang
Mag. Carpet & Heating [AIA#1] – KHayashi, KSchrijver, JBeck, EBenevolenskaya
Coronal Energetics [AIA] – KSchrijver, YLiu, Benevolenskaya, XPZhao, Hayashi, Leka, MCheung, UC-B, HWang
Large-scale B – Ph. + Cor. - KHayashi, THoeksema, EBenevolenskaya, XPZhao
Solar Wind – Evol+Struct. - Hayashi, Hoeksema, XPZhao, MWSO, CISM, Fuselier, Mikic
Far-side Activity – PScherrer, CLindsey, DBraun, SAIC
Predicting AR Emergence - TBai
IMF Bs Events – XPZhao, YLiu, KHayashi, VYurchyshyn, Hu, SFuselier, ZMikic
Magnetic Topology – YLiu, MSU-DLongcope, Barnes, SAIC-Titov
Polar & Multi-scale Field – EBenevolenskaya, THoeksema
AIA Level-2
Backup Charts
Synoptic magnetic field maps
• Pipeline: synoptic magnetic field maps.
• Lead by: Todd & Xuepu.
• Task:
• Summary: based on line-of-sight magnetograms to generate synoptic maps of magnetic field.
• Input: remapped line-of-sight magnetograms.
• Output: Carrington synoptic charts (routine), synoptic frames with a cadence of as high as 1 minute (on-demand), evolved synoptic maps with a cadence of 16 minutes (routine).
• Code: at Stanford.
• Processors
• Status: almost ready to port. Already apply to MDI mags for Carrington rotation charts.
• Issues: some minor issues for synoptic frame and evolved maps.
Velocity maps of magnetic footpoints
• Pipeline: Velocity maps of magnetic footpoints.
• Lead by: UC Berkeley (Fisher & Brian) and Yang
• Task:
• Summary: based on the Local Correlation Tracking (LCT) technique, using time-series line-of-sight magnetograms to derive motion of magnetic footpoints.
• Input: time-series line-of-sight magnetograms.
• Output: velocity map with a cadence of 10 minutes. Generate on-demand and temporarily (?) stored.
• Code: LCT code developed by Fisher & Brian.
• Processors
• Status: almost ready to port. Already apply to MDI mags.
• Issues: some minor issues.
Vector magnetic field maps• Pipeline: vector magnetic field maps.
• Lead by: Todd & Yang & K.D. Leka.
• Task:
• Summary: based on algorithms (fast and slow) to solve 180-degree ambiguity, and to map the vector magnetic field on solar surface (spherical coordinates).
• Input: field strength, inclination, azimuth, and filling factor.
• Output: Br, B_theta, B_phi at a 5-minute cadence with fast algorithm (routine), 6-hour (?) cadence with slow algorithm, and 30-minute cadence with slow algorithm for active regions.
• Code: developed at Boulder.
• Processors
• Status: Codes for fast and slow algorithms are available.
• Issues: The code of slow algorithm is too slow, and loss of its author will lead an improvement very difficult. The code of fast algorithm works for Cartesian coordinate only. Need to extend to a spherical coordinate.
Coronal field extrapolation• Pipeline: coronal field extrapolation.• Lead by: Schrijver & Keiji & Yang• Task: • Summary: based on potential field and force free field models to compute
coronal field from vector magnetograms. Also seek possible MHD solutions.• Input: vector magnetograms for local regions and vector field synoptic maps.• Output: one global NLFFF solution (3D vector field) per day, one global MHD
solution (3D vector field) per day, one PFSS & HCCSSS solutions (3D vector field) per day. Global solutions and solutions(3D vector field) for local region with a cadence as high as the data temporary resolution (on-request).
• Code: Potential field codes at Stanford, NLFFF provided by Thomas Wiegelmann at Germany (in C, on a 4 processor machine, for 320x320x256, 4GB memory, 1 hour CPU time), global MHD solution at SAIC, local MHD code provided by Wu at Alabama (in Fortran, one processor, 15 CPU hours for 99x99x99; not allow parallel computation) (and Abbete at Berkeley ?)
• Processors: • Status: all codes are ready to port except MHD code for global solution with
vector field data as input.• Issues: global MHD simulation with vector field data as input needs to be
tested. better visualization tool is required.
Coronal & solar wind models• Pipeline: coronal & solar wind models.
• Lead by: Linker & Zhao & Hayashi
• Task:
• Summary: MHD simulation to model coronal structure (steady state) with vector field data as an input. Also seek dynamic solutions driven by time-series data. Empirical solar wind models from PFSS-like result computed from magnetic field synoptic maps (i.e. WSA model); MHD solar wind model from synoptic maps.
• Input: vector magnetograms for local regions and vector field synoptic maps.
• Output: 3D plasma data.
• Code: Potential field codes at Stanford, global MHD solution at SAIC, local MHD code provided by Wu at Alabama (in Fortran, one processor, 15 CPU hours for 99x99x99; not allow parallel computation) (and Abbete at Berkeley ?)
• Processors:
• Status:
• Issues:
Magnetic-Fields Pipeline
Status 11/5/2007
Vector Magnetic Field
• Lead – Todd Hoeksema, Yang Liu• Tasks
– Field inversion– Azimuth disambiguation– Vector magnetogram generation– Coordinate transformation and remapping– Calibration– Synoptic chart/ Synoptic frame generation– Potential field processing– MHD processing– NLFFF processing– Solar wind model processing
Vector Magnetic Field (cont’d.)
• Input– Lev 0 data from both vector and LOS cameras, rebinned
and averaged spatially/temporally – Dataseries names ???
• Level 1 Output– I, Q, U, V – data possibly saved in series, size is 16 MPx
ea. image– |B|, inclination, azimuth, filling factor – data saved in
series ???, size is 16 MB ea.– Cadence for all is ~ 3 min.– Coordinate-transformer module is a deliverable
Vector Magnetic Field (cont’d.)
• Level 2 Output– Synoptic charts – data saved in series ???, cadence ???,
size ???– Frames – data saved in series ???, cadence ???, size ???– Global potential field – data saved in series ???, cadence is
1 hr., size is small– Local potential field – data saved ???, cadence is on-
demand, size is ???– Low res global MHD – saved for short duration in series ???,
cadence is 1 day, size is ~ 1MB– Hi res global MHD – data saved ???, cadence is ???, size
is ???– Hi res local MHD – data saved ???, cadence is on-demand,
size is ???– MHD temporary/intermediate files – data saved for 2
weeks in series ???, size is 100 MB– Local NLFFF – data saved ???, cadence is on-demand, size
is ???– Solar wind models – data saved ???, cadence is ???, size
is ???
Vector Magnetic Field (cont’d.)
• Code– Rebin/avg module (Rick???)– inversion code from HAO (S. Tomczyk, but we create
module)– “fast” azimuth-disambiguation module (???)– “slow” azimuth-disambiguation module (Yang)– coordinate-transformation/remapping (Yang)– global potential field (Yang)– local potential field (Yang)– MHD (Keiji + SAIC)– NLFFF (Yang + Keiji)– Solar wind models (???)
Vector Magnetic Field (cont’d.)
• Processors– 32 (field inversion)– 8 (low-res global MHD)– 8 (hi-res local MHD), – ??? (slow disambiguation)– 2 (fast disambiguation)– 1 (rebinning/averaging), – ??? (coordinate transformation/remapping), – 1 (calibration), – 0 (hi-res global MHD – runs at CCMC), – ??? (NLFFF – 40 CPU hours)– ??? (Solar wind models)
Vector Magnetic Field (cont’d.)
• Status – ??? (how much is done), NLFFF algorithm selected (IDL and C implementation exist)
• Plan/Issues– Are we saving I, Q, U, V products? – Slow azimuth disambiguation algorithm TBD. – Coordinate-transformation/remapping algorithm TBD. – Calibration TBD. – Synoptic charts/frames TBD. – Global potential field processors and output data size
unknown. – Hi-res local MHD is TBD. – Is time-evolved data used for NLFFF?
LOS Magnetic Field
• Lead – Todd• Task – Generation of LOS magnetograms from lev 0 LOS
data, generation of calibrated, radial LOS magnetic field maps from LOS magnetograms, generation of synoptic charts and frames
• Input – Lev 0 data from LOS camera (dataseries ???)• Level 1 Output
– Calibrated magnetic field map – data saved in series ???, cadence is 48 seconds, size is 2 MB
• Level 2 Output– ~ 450 Radial images – data not saved, cadence is 1 day, size is
4 MB ea.– 9 Charts + 18 diagnostic images (incl. off center) – data saved
in series ???, cadence is 1 day, 7 MB ea.– Frames – data saved ???, cadence is on-demand, size is ???
LOS Magnetic Field (Cont’d)
• Code– Conversion to radial (Art) – MDI implementation exists– Remapping (Rick/Art) – MDI implementation exists– Chart creation (Keh-Cheng/Art) – MDI implementation
exists– Time-evolved chart creation (???)
• Processors – 1 (radialize), 1 (remapping), 1 (chart creation)
• Status – MDI implementation exists for all code, except time-evolved chart creation, needs porting to JSOC (remapping mostly ported, needs testing)
• Plan/Issues – MDI port complete in a couple of months; who is doing, time-evolved chart code, and by when?