Compute the geomagnetic field using the IGRF model, both Total field and its components, anywhere on Earth surface.
Select what to compute
By default the boxes are filled with values computed for the day when this tool was used. Click anywhere on the image to show the magnetic field on that location. Click Compute to calculate a global grid of the total magnetic field.
Total magnetic field form IGRF model
Total magnetic field (shaded illuminated) and with coastlines overlain.
Compute Declination
On the pop-up box select declination to compute a grid of geomagnetic declination
The Geomagnetic declination
The Geomagnetic Inclination
The "0" contour represents the magnetic equator.
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