International Geomagnetic Reference Field
Calculate Earth magnetic field and secular variation using International Geomagnetic Reference Field
Since R2020b
Libraries:
Aerospace Blockset /
Environment /
Gravity
Description
The International Geomagnetic Reference Field block calculates the Earth magnetic field and secular variation using the selected International Geomagnetic Reference Field generation. It calculates the Earth magnetic field and secular variation at a position and time using the selected International Geomagnetic Reference Field generation.
Limitations
This block is valid between the heights of -1000 m and 5.6 Earth radii (35,717,567.2 m).
This block is valid for these year ranges:
IGRF-14 model — 1900 and 2030
IGRF-13 model — 1900 and 2025
IGRF-12 model — 1900 and 2020
IGRF-11 model — 1900 and 2015
If the decimal year is outside the valid range for a generation, the International Geomagnetic Reference Field block linearly extrapolates the magnetic field to the out-of-range decimal year.
For additional limitations, see :