Science Objectives, Observables, and Magnetic Data Product Teams

1. The Helioseismic & Magnetic Imager – Magnetic Field Data Products HMI Data Processing Data Product HMI Data Internal rotation Ω(r,Θ) (0<r<R) Spherical Harmonic Time series To l=1000 Heliographic Doppler velocity maps Filtergrams J. Todd Hoeksema for the HMI Magnetic Team Mode frequencies And splitting Internal sound speed, cs(r,Θ) (0<r<R) HMI Science Analysis Plan – Magnetic Topics Full-disk velocity, v(r,Θ,Φ), And sound speed, cs(r,Θ,Φ), Maps (0-30Mm) Local wave frequency shifts Ring diagrams Doppler Velocity HMI Data Carrington synoptic v and cs maps (0-30Mm) Time-distance Cross-covariance function Tracked Tiles Of Dopplergrams Wave travel times Filtergrams High-resolution v and cs maps (0-30Mm) Magnetic Data Products Egression and Ingression maps Wave phase shift maps Deep-focus v and cs maps (0-200Mm) AKosovichev 1-1A Tachocline Far-side activity index Stokes I,V Line-of-sight Magnetograms Level-1 AKosovichev 2-1C Meridional Circulation Line-of-Sight Magnetic Field Maps AKosovichev 3-1B Differential Rotation Stokes I,Q,U,V Full-disk 10-min Averaged maps Vector Magnetograms Fast algorithm Magnetic Observables Line-of-Sight Magnetic Field Maps HMI Vector Field Pipeline & Products Vector Magnetic Field Maps JBeck 4-1D Near-Surface Shear Layer Vector Magnetograms Inversion algorithm Coronal magnetic Field Extrapolations Tracked Tiles THoeksema Increase s/n: • Standard HMI resolution • Rebinned data (retains temporal resolution) • Averaged data (retains spatial resolution) EBenevolenskaya, TBai 5-2A Activity Complexes, Cycle Tracked full-disk 1-hour averaged Continuum maps Coronal and Solar wind models Continuum Brightness Line-of-sight Magnetograms Solar limb parameters THoeksema 6-2B Active Regions Vector Magnetic Field Maps Brightness Images Brightness feature maps HMI Data Analysis Pipeline 7-2C Sunspots TBai HMI after delivery to GSFC • Vector magnetic field in active regions: • In heliographic coordinates • In image coordinates YLiu 8-2D Irradiance Variations RBush HMI Complete and Awaiting Integration onto SDO Magnetic Observables THoeksema, JSchou, HAO YLiu HMI Data 9-3A Magnetic Shear 10-3B Flare/CME Mag. Config LM, KHayashi Filtergrams • Full disk vector magnetic field: • In image coordinates • In spherical coordinates Coronal Magnetic Field Extrapolations (non MHD) YLiu, LM Stokes I, Q, U, and V; Vector Magnetograms (|B|, inclination, azimuth, …) 11-3C Flux Emergence Vector Magnetic Field Maps KHayashi, LM 12-3D Magnetic Carpet+Heating Vector Magnetograms YLiu, Schrijver Schrijver, YLiu 13-4A Coronal Energetics AIA]1 KHayashi YLiu, JSchou, *HAO, CORA 14-4B Large-scale B, Ph+Cor Surface Plasma Flows • Synoptic maps of vector field • (B_r, B_theta, B_phi): • Standard synoptic charts; • Synoptic frames; • Daily update synoptic maps. KHayashi Field Inversion (10m) 15-4C Solar Wind + Evol, Struct PScherrer JBeck, YLiu, 16-5A Far-side Activity Evolution Calibration and Correction of Filtergrams 180 Degree Ambiguity Solver • Fast (potential or lfff); • Slower but better. TBai 17-5B Predicting A-R Emergence XPZhao 18-5C IMF Bs Events Continuum Brightness Coronal and Solar wind Properties Lundstedt 19 Topology Structure over AR RBush, JSchou EBenevolenskay XPZhao, KHayashi 20 B-Polar, Large/Small Int SYNOPTIC PRODUCTS SYNCHRONIC PRODUCTS Synoptic frame (standard) (in a cadence of 1-day) Daily update Synoptic & Synchronic maps (standard cadence of 1-day) Synoptic & Synchronic maps (CR, standard) Synoptic frame (on-demand) Synchronic frame (on-demand) Vector Synoptic frame (on-demand) (in a cadence of 30-minute) 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 Daily update Synoptic map (on-demand) (in a cadence of 30-minute) 0 180 -180 180 0 3097 Synoptic or Synchronic frame (on-request) (in a cadence of 2-minute) Daily update Synoptic map (on-request) (in a cadence of 2-minute) SP51B-13 The Helioseismic & Magnetic Imager – Magnetic Field Data Products The Helioseismic and Magnetic Imager (HMI) instrument on the Solar Dynamic Observatory (SDO) spacecreaft will begin observing the solar photospheric magnetic field continuously after launch and commissioning in early 2009. This paper describes the HMI magnetic processing pipeline and the expected data products that will be available. The full-disk line-of-sight magnetic field will be available every 45 seconds with 1” resolution. Comparable vector measurements collected over a three-minute time interval will ordinarily be averaged for at least 10 minutes before inversion. Useful Quick-Look products intended only for forecasting and planning purposes will be available a few minutes after observation. Standard final science data products will be computed within 36 hours and made available through the SDO Joint Science Operations Center (JSOC). Three kinds of magnetic science data products have been defined – standard, on-demand, and on-request. Standard products, such as frequently updated synoptic charts, are made all the time on a fixed cadence. On-demand products, such as high-cadence full-disk disambiguated vector magnetograms, will be generated whenever a user asks for them. On-request products, such as high-resolution time serieos of MDH model solutions, will be generated as resources allow. This paper describes the observations, magnetograms, synoptic, and synchronic products, and field model calculations that will produced by the HMI magnetic pipeline. • 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) • 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 • Completed when system resources allow Vector magnetic quantities: |B|, filling factor, inclination to l-o-s, azimuth, magnetic velocity, & uncertainties. • Science Objectives, Observables, and Magnetic Data Product Teams • Preliminary Magnetic Topic Group Affiliations • Please Participate! • Observables • Line-of-sight magnetograms – THoeksema, JSchou, HAO, KD Leka • Vector magnetograms – YLiu, JSchou, HAO, SCouvidat, KD Leka • Continuum Brightness – RBush, JSchou, NHurlburt, TBerger, PBoerner, JKuhn • Magnetic Data Products • Line of sight magnetic maps – THoeksema, EBenevolenskaya, TBai • Vector field maps – YLiu, THoeksema, EBenevolenskaya, ANorton, KD Leka, Blites, BBSO-JJing, VYurchyshyn, A. Pevtsov • Coronal field extrapolations [AIA] – YLiu, KSchrijver, XPZhao, KHayashi, LM-MCheung • Coronal & Solar Wind – XPZhao, KHayashi, THoeksema, SAIC-Linker • Surface Plasma Flows – JBeck, YLiu, KHayashi, EBenevolenskaya, TBai, BWelsh, STWu, RShine, BDePontieu, TBerger, SAIC-Linker • Science Objectives • 1-1A – Tachocline - AKosovichev • 2-1C – Meridional Circulation - AKosovichev • 3-1B – Differential Rotation - AKosovichev • 4-1D – Near-surface Shear Layer - JBeck • 5-2A – Activity Complexes – EBenevolenskaya, TBai, THoeksema, KHayashi, NHurlburt, VGaizauskus, JHarvey • 6-2B – Active Regions – THoeksema, EBenevolenskaya, TBai, KHayashi, NHurlburt • 7-2C – Sunspots – TBai, THoeksema, EBenevolenskaya, NHurlburt • 8-2D – Irradiance Variations – RBush, TBerger, PBoerner • 9-3A – Magnetic Shear – YLiu, JBeck, KHayashi, AKosovichev, BBSO-VYurchyshyn • 10-3B – Flare/CME Magnetic Config – KHayashi, LM?, YLiu, XPZhao, TBai, AKosovichev, UC-B,BBSO-HWang • 11-3C – Flux Emergence – YLiu, JBeck, EBenevolenskaya, LHayashi, LM, BLites, KD Leka, BBSO-HWang • 12-3D – Mag. Carpet & Heating [AIA] – KHayashi, KSchrijver, JBeck, EBenevolenskaya • 13-4A – Coronal Energetics [AIA] – KSchrijver, YLiu, EBenevolenskaya, XPZhao, KHayashi, KD Leka, MCheung, UC-B,BBSO HWang • 14-4B – Large-scale B – Ph. + Cor. - KHayashi, THoeksema, EBenevolenskaya, XPZhao • 15-4C – Solar Wind – Evol. + Struct. - KHayashi, THoeksema, XPZhao, MWSO, CISM, LM-SFuselier, SAIC-ZMikic • 16-5A – Far-side Activity – PScherrer, CLindsey, DBraun, SAIC • 17-5B – Predicting AR Emergence - TBai • 18-5C – IMF Bs Events – XPZhao, YLiu, KHayashi, BBSO-VYurchyshyn, Hu, HINODE, LM-SFuselier, SAIC-ZMikic • 19 – Magnetic Topology – YLiu, MSU-DLongcope, Barnes, SAIC-Titov • 20 – Polar & Multi-scale Field – EBenevolenskaya, THoeksema • Science Data Products – HMI Magnetic Field Images • Pipeline • One-minute • signed |Br| on full disk • magnetic line-of-sight velocity on full disk • continuum intensity on full disk • 10-minute • inverted B on full disk • disambiguated B on selected patches • 3-hour • disambiguated vector field on full disk, use QL results as appropriate • 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 • 10-minute full disk disambiguated vector field • On Request • 100-second disambiguated patches • 100-second IQUV • Anything else • Quick Look Observables – HMI Magnetic Field Images • One Minute (Doppler cadence, ~45 seconds) • 1-minute line-of-sight velocity • 1-minute line-of-sight magnetic field (or Br or signed total l-o-s mean field) • 1-minute continuum intensity • 1-minute indices, movies computed from the above • 10-Minute (fastest vector field cadence averaged over 6 cycles, 90s*6) • 10-minute global quick-look inversions • inversion method may depend on flux/noise • map of inversion method provided • selected rectangular patches will be disambiguated • indices for patches computed from 10-minute field values • 1-hour • Synoptic maps of B_r at lower resolution (1-degree, tbd) • Vector field updated only in patches • 6-hour • Quick-look full-disk disambiguated vector field Magnetic Field Model Products Produced as Standard, On-demand, and On-request products Automated Identification of AR Patches PFSS Model – various resolutions NLFFF Model – AR patches only, daily MHD Models – daily low-resolution – Monthly major events in hi-res Open Field Foot Point Maps Surface Flow Maps – ILCT, DAVE