Science Data Products – HMI Magnetic Field Images Pipeline 45-second Magnetic line-of-sight...
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Science Data Products – HMI Magnetic Field Images Pipeline 45-second Magnetic line-of-sight velocity on full disk Continuum intensity on full disk Vlos
Science Data Products HMI Magnetic Field Images Pipeline
45-second Magnetic line-of-sight velocity on full disk Continuum
intensity on full disk Vlos on full disk 12-minute Inverted vector
B on full disk Disambiguated B on selected patches 3-hour
Disambiguated vector field on full disk On Demand 3-second level
1.5 filtergrams (limited number) 3-minute (180-second) spatially
binned disambiguated vector field in patches 6-minute (360-second)
disambiguated patches 12-minute full disk disambiguated vector
field On Request 90-second disambiguated patches 90-second IQUV
Anything else 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 0180-180180 03097 The Helioseismic
& Magnetic Imager Magnetic Pipeline J. Todd Hoeksema for the
HMI Magnetic Team SPD 2009: 17.01 Magnetic Field Model Products
Produced as Standard On-demand, and On-request products Automated
Identification of AR Patches and other features PFSS Model Various
resolutions NLFFF Model AR patches, daily MHD Models Daily
low-resolution Monthly major events in hi-res Open Field Foot Point
Maps Surface Flow Maps ILCT, FLCT DAVE4VM Magnetic Processing
Scheduling There are four classes of Magnetic Field data processing
Quick Look Routine processing on data available within minutes of
observation Standard Routinely completed for all data on regular
cadence (e.g. Vector B) On Demand Completed for small fraction of
data when interesting things happen or whenever requested by a
qualified user (HiRes MHD time series for a big flare & CME
campaign On Request Products, such as high-resolution time series
of MDH model solutions, will be generated as resources allow.
Completed when system resources allow HMI Vector Field Pipeline
& Products Calibration and Correction of Filtergrams Magnetic
Observables HMI Data Increase s/n: Standard HMI resolution Rebinned
data (retains temporal resolution) Averaged data (retains spatial
resolution) Vector Magnetic Field Maps 180 Degree Ambiguity Solver
Fast (potential or lfff); Slower but better. Full disk vector
magnetic field: In image coordinates In spherical coordinates
Vector magnetic field in active regions: In heliographic
coordinates In image coordinates Synoptic maps of vector field
(B_r, B_theta, B_phi): Standard synoptic charts; Synoptic frames;
Daily update synoptic maps. Field Inversion (10m) Stokes I, Q, U,
and V; Vector Magnetograms (|B|, inclination, azimuth, )
Filtergrams HMI Space Weather and Quick-Look Browsing Products
Generally HMI space weather and quick-look browsing products are
computed in near real time from quick look SDO data. They may be
used for space weather forecasting or real time monitoring and
display. They should not be used for scientific analysis, except
perhaps to compare the quality of preliminary and definitive
products. HMI space weather and quick-look products will be
coordinated with the Heliophysics Events Knowledge Base. These data
products will complement the AIA Quick Look Browse Products DRAFT
LIST This list is preliminary and is not a commitment. Each product
must have a prospective user. Comments welcome! Magnetic Products
Full Disk Line-of-sight magnetograms (Blos) - 90-sec; 1K*1K
resolution Vector magnetogram, inverted & disambiguated - 12
hour Movie of Blos - 12-day history, updated each 90 seconds Active
Region Patches (ARPs) Identification of active region patches - 12
minute Vector magnetic field in major ARPs, disambiguated - 12
minute Time series of major ARP indices (since appearance, updated
every 12 min Location, orientation, separation, total flux, net
flux, delta-B, helicity, non-potentiality, complexity, field
gradient, other Alerts based on indices Increased time resolution
during alerts Blos at full spatial resolution in ARPs - updated
each 90 seconds Synoptic Maps Synchronic Frame - radial field
estimate - 96-minute, reduced resolution Evolved
Carrington/Synchronic map - 6 hour Far Side Products Far side
active region map - daily Movie of global sun activity - 54-day,
updated daily Other Products Full-disk Velocity - snapshot every 12
minutes Full-disk Intensity - 12 minute Full-disk Line Depth - 12
minute Full-disk and ARP Overlays of AIA and HMI Blos - 90-sec
update, movie Alerts & Indices - 12 minute Irradiance, mean
field, ARP intensity/flare detection Movies of ARPs in Intensity
(updated hourly) Horizontal Flow from LCT in ARPs (daily) Coronal
Field Models (daily, weekly) Global - PFSS, Hybrid - HCCSSS, MHD
ARPs/Local - PF, NLFFF, MHD Field line maps, source surface maps,
AIA overlays, MHD quantities Magnetic field global harmonic
coefficients - daily 1 AU Predictions - WSA velocity, polarity,
field strength, etc (daily) Coronal Holes - open foot points
(daily) Polar Field Estimate (monthly) Note: Not all products are
produced by HMI. ABSTRACT The Helioseismic and Magnetic Imager
(HMI) will provide frequent full-disk magnetic field data after
launch of the Solar Dynamics Observatory (SDO), currently scheduled
NET November, 2009. 16 megapixel line-of-sight magnetograms (Blos)
will be recorded every 45 seconds. A full set of polarized
filtergrams needed to determine the vector magnetic field requires
90 seconds. Quick-look data will be available within a few minutes
of observation. Quick-look space weather and browse products must
have identified users, and the list currently includes full disk
magnetograms, feature identification and movies, 12- minute
disambiguated vector fields in active region patches, time
evolution of AR indices, synoptic synchronic frames, potential and
MHD model results, and 1 AU predictions. A more complete set of
definitive science data products will be offered about a day later
and come in three types. Pipeline products, such as full disk
vector magnetograms, will be computed for all data on an
appropriate cadence. A larger menu of On Demand products, such as
Non-Linear Force Free Field snapshots of an evolving active region,
will be produced whenever a user wants them. Less commonly needed
On Request products that require significant project resources,
such as a high resolution MHD simulation of the global corona, will
be created subject to availability of resources. Further
information can be found at the SDO Joint Science Operations Center
web page, jsoc.stanford.edu