New World Magnetic Model

In Version 12, GeomagneticModelData has access to the latest World Magnetic Model for the Earth (Feb 2019), and now also can provide geo vectorial results using GeoVector and GeoVectorENU. This example shows some results computed with the new model.

Examine the magnitude of the geomagnetic field across the entire planet. The result is compactly represented as a QuantityArray object.

MatrixPlot can visualize the entire array of magnetic data.

Use GeoGraphics and ListContourPlot to visualize the data on a map of the globe.

GeomagneticModelData can also now represent the vector field itself in a compact way using GeoVector.

Draw the magnetic field lines around the North Pole.