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Annie Souriau
Summary
Annie Souriau is a French seismologist from the commune of Saint-Cloud Paris. She is primarily known for her research into Earth's inner and outer cores, specifically her work examining seismic activity within and around the Pyrenees mountains. Through her and her colleague's research and studies, she has made notable advances to how we understand the inner workings of the earth's core while also winning countless awards in the process.
Annie Souriau began her Education at École normal supérieure de Fontenay-aux-Roses, which was reserved as a school for girls, during that time her specialty was physics. She then moved onto Institut de Physique du Globe in Paris where she obtained her Ph.D in 1978. in seismology on the structure of the upper mantle. After completing this Souriau then moved on to Toulouse in 1979 to work with the Geodesy Research Group, where alongside and led by Michel Lefebvre, they created a CNRS structure which was used to create a link between fundamental research and space experiments in Earth physics. She spent 1983 to 1984 at Harvard University, followed by a six-month period in Canberra. She was a senior scientist at CNRS in 2004(Centre national de la Recherche Scientifique).
Souriau is known for her combination of observational data and modeling to examine the structure of Earth's internal core, particularly within the Pyrenees mountains. She has also examined how earthquakes and the drift of the Earth's pole interact with the Chandler wobble, and the heterogeneous nature of the mantle and how it interacts with the surface topography of Earth.
Used a top-down and bottom-up approach to determine the changing rotation of the inner core. Samples of seismic waves were taken, when observed, it appears that the core did not have a cylindrical symmetry. The top-down approach showed that the inner core anisotropy reflects cylindrical symmetry. The axis of the inner core is not perpendicular to orbit, but rather tilted. The rotation affects the direction of anisotropy which results in a change in propagation times.
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