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[ official version ] [ test version ] [ Japanese version ] of HMI daily-MHD model.

The global solar corona and solar wind
derived with time-dependent three-dimensional MHD simulation
using SDO/HMI magnetic field synoptic data



input data and initial PFSS magnetic field daily NRT simulation other solar obs.

Details of this simulation is described in Solar Physics (2015) vol.290, 1507.
For information about instruments, data, and the status of data processing, please visit HMI and/or SOI/SOHO/MDI web pages.

Input NRT Synchronic-Frame Map of Solar-Surface Magnetic Field :
synoptic frame map
HMI daily synoptic map
latest map in FITS format (∼ 20MB)
and WSO data format (∼ 21kB).
year-to-date mpeg movie (*)
PFSS model plot
PFSS with HMI daily map
left : field lines and bases of open field
right: zero-Br contour surfaces.
3-D FITS data: radial, lat., and long..
year-to-date mpeg movie (*)
PFSS (without Br-offset)
PFSS with HMI daily map
left : field lines and bases of open field
right: zero-Br contour surfaces.
3-D FITS data: radial, lat., and long..
year-to-date mpeg movie (*)
* Not regularly updated.
The daily-updated map are found at http://jsoc.stanford.edu/ajax/lookdata.html?ds=hmi.Mrdailysynframe_720s_nrt

Around 14:00 UT (7 or 8AM PT) everyday, the latest daily-updated synoptic map will be generated in JSOC data pipeline. At 9 AM PT, the latest near-real-time data is loaded, processed and fed to the coronal MHD model and PFSS calculation code, then the left plot above is replaced with the latest one. Around 10 AM PT, a PFSS calculation of moderate spatial resolution is completed and the right plot box above is updated. Around 2 to 4 PM PT, a daily MHD run (low-resolution, about 5-degrees in latitude and longitude) is completed, then the plots below are updated. The schedule is subject to change, primarily depending on status of the JSOC data processing. Elapsed time of MHD simulations depends on the CFL condition (i.e., the largest speed of the MHD waves (including plasma bulk velocity)).

Daily NRT Simulation Data

NRT daily simulation data generated through automated JSOC data pipeline are found at http://jsoc.stanford.edu/ajax/lookdata.html?ds=hmi.MHDcorona_daily_nrt.

plots made: Wed Jul 29 22:29:22 UTC 2015 (Wed Jul 29 15:29:22 PDT 2015)
lat-lon map at various distances
click here to enlarge.
line-of-sight integration
of coronal density
daily MHD corona map daily MHD-derived LoS coronal density
recent 27 plots (AniS java applet animation)
recent 27 plots (mpeg movie)                  
year-to-date (mpeg. *not regularly updated)
recent 27 plots(AniS)
recent 27 plots(mpeg)
year-to-date(mpeg)
Latest data files   *Please contact us for details of the simulation and data.
   maps at 30 Rs: Vr (in km/s) and Br (in nT) in CSV (Comma Separated Values; plain text) format
   a cubic data containing all eight MHD variables : click here (FITS format, approx. 6.5MB).
The size of this cubic data is 32 x 64 x 640. The first 80-layer block, (*,*,0:79), is for the density (in count/cc), from 1.01 Rs to 4.96 Rs with a fixed equi-radius interval of 0.05Rs, and the second to eighth 80-layer blocks are respectively for the temperature (in MK), V_r, V_theta, V_phi (in km/s), B_r, B_theta and B_phi (in Gauss). Please mind that the format and specifications of this FITS file are different from those at JSOC database.
Summary mpeg movies:
  
2015 2014 2013 2012 2011 2010 2009 2008
1st 2nd 1st 2nd 1st 2nd 1st (*)2nd (#)1st (+)2nd 1st 2nd 1st (!)all
lat.long
corona
lat.long
corona
lat.long
corona
lat.long
corona
lat.long
corona
lat.long
corona
lat.long
corona
lat.long
corona
lat.long
corona
lat.long
corona
lat.long
corona
lat.long
corona
lat.long
corona
lat.long
corona
   (*) SDO/HMI synoptic map data is used since July 1. 2011.
(#) Transition of input data, from MDI to HMI, was in the first half of year 2011.
(+) SOHO/MDI synoptic map data were used until the end of 2010.
(!) Polar-field correction was applied to the input MDI synoptic map data until end of 2010.


Simulations with definitive synoptic map data
definitive daily data  :  magnetic field map and three-dimensional MHD data
definitive once-a-Carrington-Rotation data  :  magnetic field map and three-dimensional MHD data
   *) Definitive version of input synoptic or synchronic frame maps of solar-surface magnetic field and MHD output data are generated when all calibrations are applied, usually a month after observations.

Observations / Measurements
image/data fetched: Thu Jul 30 11:30:13 UTC 2015 (Thu Jul 30 04:30:13 PDT 2015)
HMI daily synoptic map SDO/HMI    SDO/HMI    SDO/HMI
C2 and Kcor MHD-0      SDO/AIA    PFSS with HMI daily map


Supplemental description
Modification / change / history

K. Hayashi
last (minor) modification of this page: July, 2015