HistKalmag Geomagnetic Field Model
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Magnetic model properties
The parts of the model to be included
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Core field
Secular variation
Degree of the spherical harmonics expansion
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Maximum is 20
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The statistics to compute
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The standard deviation is computed through an ensemble of 128 possible field solutions
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Mean
Mean and standard deviation
Magnetic geocentric component
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Radial
Azimuthal
Longitudinal
Magnetic geodetic component
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North(X)
East(Y)
Down(Z)
Declination
Inclination
Intensity
Radius of the spherical surface [km]
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Elevation above or below the WGS84 ellipsoid [m]
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Geodetic quantities
Minimum mean (nT)
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Minimum mean (degree)
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Minimum mean (degree/yr)
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Minimum mean (nT/yr)
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Maximum mean (nT)
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Maximum mean (nT/yr)
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Maximum mean (degree)
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Maximum mean (degree/yr)
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Minimum standard deviation (nT)
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Minimum standard deviation (degree)
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Minimum standard deviation (degree/yr)
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Minimum standard deviation (nT/yr)
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Maximum standard deviation (nT)
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Maximum standard deviation(nT/yr)
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Maximum standard deviation (degree)
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Maximum standard deviation (degree/yr)
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Imposed minimum and maximum
Epoch (year)
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Epoch between 1000 and 1950
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Result format
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VTK: format valid for the Paraview 3D visualisation software
For other formats, source codes and data are provided
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PNG
JPEG
EPS
VTK
High definition visualisation
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* Required fields
When using the model please cite:
The global geomagnetic field over the historical era: what can we learn from ship-log declinations?
Schanner M., Bohsung L., Fischer C., Korte M., Holschneider M.
Earth, Planets, and Space
(2023)