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Andy Nowacki |
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The Leeds component of a NERC-funded four-year large grant to understand how the rocky interior of the Earth has evolved over the last billion years.
Mantle convection simulation, showing in red a contour of mantle temperature at 2800 K (about 3100°C). The green blebs show lower mantle regions of basalt, subducted to depth from the surface. Model courtesy Huw Davies, Cardiff University.
In Leeds, our aim is to test how well our models of mantle convection match the present-day state of the Earth. We will use new observations of the small-scale structure of the mantle and compare these with large-scale seismic simulations, allowing us to decide which convection models best match the real Earth, and thus what the interior of the Earth looked like hundreds of millions of years ago.
A NERC-funded three-year project to quantify the uncertainty inherent in using seismic wave arrival times to jointly infer earthquake locations and magnitudes, and the seismic velocity structure of the subsurface.
Cartoon showing the joint event hypocenter–velocity tomography inference problem. The arrival times of waves from earthquakes at depth are the information we use. We perform fully non-linearised inference to obtain probabilities that a given event occurred within a certain volume and time, and also that any point in the subsurface has a certain range of velocities.
A Leverhulme Early Career Fellowship to study the history of the Earth's rocky mantle using seismic observations and modelling.