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Modelling Earth’s magnetic field over Southern Africa at satellite altitude applying Spherical Cap Harmonic Analysis method on Swarm satellite data recorded between 2014 and 2018

The Earth’s magnetic field changes are not predictable in space and time. The long time series data is necessary to study its variation over several years. The long term change of the Earth’s magnetic field is known as secular variation, while sudden changes in the linear secular variation trend are known as geomagnetic jerks or secular variation impulses. The measured field on the Earth’s surface is the superposition of internal (from electrical currents in the outer core) and external fields (from magnetospheric and ionospheric currents). In this study, the focus is on the internal magnetic field. Spherical cap harmonic analysis method is applied on Swarm satellite data recorded between 2014 and 2018 to develop accurate main and secular variation magnetic field models at satellite altitude.
Node This Project Is Offered On: 




Requirements for students to address: 
Programming skills in either IDL or Python.
Research Area: 
Space Physics

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