Research

Threshold-based predictions of the Earth’s axial magnetic dipole field

We study predictions of reversals of Earth’s axial magnetic dipole field that are based solely on the dipole’s intensity. The prediction strategy is, roughly, that once the dipole intensity drops below a threshold, then the field will continue to decrease and a reversal (or a major excursion) will occur. Below you will find a collection of slides discussing this study along with a short video introducing them.

Data assimilation for decadal-scale geomagnetic forecasting

There has been growing interest in using data assimilation (DA) with numerical geodynamo models to better understand the processes of the Earth's deep interior and improve decadal-scale forecasting of the magnetic field. However, there remain several fundamental questions regarding the application of DA in geomagnetism. Below are links to a presentation (in two parts) on this topic from the Joint ICTP-IUGG Workshop on Data Assimilation and Inverse Problems in Geophysical Sciences.
Part 1
Part 2

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