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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, a latest daily-updated synoptic map is generated in JSOC data pipeline. At 10 AM PT, the coronal MHD module loads the latest map and start a time-relaxation simulation. Plots of PFSS calculations above are updated usually around 10:30AM PT. A daily MHD real-time low-resolution simulation is completed around 2 to 4 PM PT. The elapsed time depends upon primarily the largest absolute eigen values of the hyperbolic equation system, or roughly the largest value of the magnetic field strength (the CFL condition).

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: Sun Jul 24 19:41:48 UTC 2016 (Sun Jul 24 12:41:48 PDT 2016)
lat-lon map at various distances
click here to enlarge.
coronal brightness (white corona) and coronal holes
daily MHD corona map daily MHD-derived LoS coronal brightness
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).
This single FITS file contains all eight simulated MHD variables, from 1.01 to 4.96 Rs. 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) at heights of (1.01 + i * 0.05) Rs, i.e., from 1.01 Rs to 4.96 Rs with a fixed equi-radius interval of 0.05Rs. 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:
  
2017 2016 2015 2014 2013
2nd 1st 2nd 1st 2nd 1st 2nd 1st 2nd 1st
lat.long
corona
lat.long
corona
lat.long
corona
lat.long
corona
lat.long
corona
lat.long
corona
lat.long
corona
2012 2011 2010 2009 2008
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
   (*) SDO/HMI daily synoptic maps have been regularly generated at JSOC, and used in this daily-MHD model, from July 1. 2011.
(#) Transition of input data, from MDI to HMI.
(+) SOHO/MDI daily-updated synoptic maps were used until the end of 2010.
(!) Polar-field correction was applied to the input MDI synoptic map data, except for a few earliest weeks.


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
external images/data fetched: Sun Jul 24 11:30:14 UTC 2016 (Sun Jul 24 04:30:14 PDT 2016)
HMI synchronic frame map
HMI daily synoptic map
HMI full-disk
SDO/HMI
HARP
SDO/HMI
LASCO and AIA
C2 C3 Kcor
C2 and AIA
C2    Kcor
MHD corona
MHD
AIA
SDO AIA
CH(PFSS)
Coronal Hole
PFSS line and zero-Br surf.
PFSS with HMI daily map
ACE real-time mag.epam
ACE
ACE real-time mag.
ACE
ACE real-time epam
ACE
STEREO Synop.
STEREO Synop.
STEREO A COR2
STEREO-A/COR2
STEREO A COR1
STEREO-A/COR1
STEREO A 195
STEREO-A/EIT195
STEREO B 195
STEREO-B/EIT195
STEREO B COR1
STEREO-B/COR1
STEREO B COR2
STEREO-B/COR2


Description
modification / change / history

K. Hayashi