Mag.num - Model of the geomagnetic core field, based on satellite and observatory data
Mag.num model of the Earth's magnetic field based on data from Swarm satellites and observatories. Vertical component of the Earth's magnetic field at the core-mantle boundary
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Mag.num models are the series of recent GFZ high-precision geomagnetic core field models that rely on satellite magnetic field measurements, in particular on calibrated Swarm and CHAMP vector field and ground observatory data. The coefficients of the spherical harmonic expansion is represented in snapshots and the temporal evolution between the snapshots is realised through spline interpolation. The coefficient files follows a dedicated formatfor Swarm magnetic field models.
Updates of Mag.num models are triggered by new satellite or observatory data, and will regularly be made available.
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- is related to
- ArchKalmag14k - Correlation based model of the holocene core field, based on archeomagnetic and volcanic data
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- GGF100k - Model that covers the past 100.000 years and it is the longest global reconstruction of the geomagnetic field
- GGFSS70 - Geomagnetic model that covers the period of 70 - 15 kyrs, that includes 3 geomagnetic excursions
- Geomagnetic Observatory Data
- LSMOD Models - Models for the periode of 30 to 50 kyrs that contain the Laschamp and Mono Lake field excursions