HMI Magnetic Products

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HMI Magnetic Products Pipeline

• http//jsoc.stanford.edu/jsocwiki/Lev1Doc

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HMI Magnetic Field Products

• Line-of-sight magnetic field will be computed
  from Doppler Velocity in two polarizations, as is
  done for MDI.
• Vector Field will be computed from Stokes
  parameters derived from an independent set of
  polarized filtergrams.
• After launch the possibility of combining the two
  cameras will be explored.
• The nominal line-of-sight cadence is 45 seconds.
  The basic vector field cadence in 90 seconds.
• Vector field data products will be the following
  quantities and uncertainties on each
• B - total flux
• Filling factor (where possible)
• Inclination (gamma) to the line of sight
• Azimuth (phi) relative to solar north
• Magnetic line-of sight velocity
• Data will be exported in a variety of coordinate
  systems Bx,By,Bz, B_total,gamma,phi, and
  Br,Btheta,Bphi

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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
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• Magnetic Processing Scheduling
• There are four Schedules for 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) after about 25 hours.
• 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

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• Definitive Standard 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
• 12 -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

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• Additional 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 and major events in hi-res
• Open Field Foot Point Maps
• Surface Flow Maps
• ILCT, FLCT DAVE4VM

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• 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 Comments welcome! This list is
  preliminary and is not a commitment. Each
  product must have a prospective user.
• Magnetic Products
• Full Disk
• Line-of-sight magnetograms (Blos) - 90-sec 1K1K
  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 (hourly?)
• Vector magnetic field in major ARPs,
  disambiguated - 12 minute
• Time series of major ARP indices (since
  appearance, updated every 12 min

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• HMI Space Weather and Quick-Look Browsing
  Products - continued
• 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 averaged snapshot every 12
  minutes
• Full-disk Intensity - 12 minute average
• Full-disk Line Depth - 12 minute average
• 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)

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• Vector Magnetic Field Modules
• Time Average_IQUV
• Stokes Inversion
• Field Disambiguation
• Merging Patches
• Bx By BzTransform
• Br Bt BpTransform
• Btot In Az Transform
• VectorB_Remap
• VectorB Spatial Average
• VectorB Temporal Average
• Carrington Synoptic Chart
• Synchronic Frame
• Daily Synchronic Update
• Vector Synchronic Map
• Polar Field Extrapolation
• Magnetic Harmonic Coefficients
• Potential Field-Source Surface

• Solar Wind Model
• Model Dynamic Active Regions
• Model Dynamic Corona
• Model Heliospheric Conditions
• Model 3D AR Field
• Space Weather Products - Local
• Space Weather Products - Global
• Associated HMI Pipeline Modules
• Feature Recognition
• Spatial Average
• Line of Sight Magnetic Field Modules
• B_LOS - Stokes
• B_LOS - Average
• B_LOS - Remap
• B_LOS - Remap_and_Average
• B_LOS Carrington Map
• B_LOS Synchronic Frame