atmospheric_fieldIGRF
- Workspace.atmospheric_fieldIGRF(self, atmospheric_field: pyarts3.arts.AtmField | None = None, time: pyarts3.arts.Time | None = None) None
Use IGRF to compute the magnetic field at each point.
The IGRF model is a model of the Earth’s magnetic field. It is based on spherical harmonics and is only valid for a limited time period.
The IGRF model is available via Alken et al. [1].
Note
The IGRF model is added as a functional object to the atmospheric field. If you need to retrieve the magnetic field, you must convert it to another type, use
atmospheric_fieldSchmidthFieldFromIGRF()
, which have been designed to support retrievals of the magnetic field via Legendre coefficients, or useatmospheric_fieldAbsoluteMagneticField()
, which allow returning the magnitude of the magnetic field.Author: Richard Larsson
- Parameters:
atmospheric_field (AtmField, optional) – An atmospheric field in ARTS. See
atmospheric_field
, defaults toself.atmospheric_field
[INOUT]time (Time, optional) – Time of data to use. Defaults to
2025-10-01 13:10:07.300161248
[IN]