Geoscience Australia’s newest Geomagnetic team member Garrick Paskos

You are invited to listen to Geoscience Australia’s newest Geomagnetic team member Garrick Paskos give his end of 2016 graduate rotation summary.

The talk will be held at 3pm on the 23^rd Feb 2017 in the Sir Harold Raggatt Theatre Geoscience Australia

Garrick will talk about his work predicting induced electric fields in Australia using Geoscience Australia’s Earth conductivity model and geomagnetic observatory data for infrastructure and community safety.

Recent advances in the electrical conductivity model of Australia from a 2.5-D thin-sheet to a 3-D model (Geoscience Australia - Wang et al., 2014), makes it possible to model the induced electric field distributions in a wider frequency range relevant to Geomagnetically induced currents (GIC) studies. The modelling provides insight into potential geomagnetic induction hazards across Australia due to oceans and inland conductivity structures from the surface to a depth of over 600 km.

Geoscience Australia operates a network of permanent geomagnetic observatories to continuously monitor magnetic field activity in the Australian region. In this proposal we would like to develop a method to derive the induced electric field in time domain using their frequency domain relationship.  

We hope to see you there.