Ionospheric Magnetic Field Calculator

DIFI Time Series Calculator (2015-2018)

Enter an address:


  Degree Minute Second Date (UTC)
Lat:
North
South
Start Day:
Start Month:
Start Year:
Start Hour:
Start Minute:
Lon:
East
West
End Day:
End Month:
End Year:
End Hour:
End Minute:
Step Time (in hours):




Lat:
Lon:
Declination
+ East
- West
(arcseconds)
Inclination
+ Down
- Up
(arcseconds)
Total Intensity (F)
(nT)
Horizontal Intensity (H)
(nT)
North Component (X)
+ North - South
(nT)
East Component (Y)
+ East - West
(nT)
Vertical Component (Z)
+ Down - Up
(nT)
F10.7 Value Used

This calculator is based on a spherical harmonic model derived using Swarm level 2 Dedicated Ionospheric Field Inversion (DIFI) algorithm. It describes the diurnal, seasonal and solar cycle variations of the primary ionospheric field and its secondary (induced) counterpart at the Earth's surface. (The model also works at LEO altitudes, but this feature is not implemented in the present online calculator.) The model domain of validity is +/- 55 degrees in quasi-dipole latitudes. Any request at higher latitudes will return a non-physical result.
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