GD7.1/PS9.8Earth's core structure and dynamics: observations, models, experiments (co-sponsored by AGU-SEDI) (co-organized)
|Convener: Julien Aubert | Co-Conveners: M. Alexandra Pais , Phil Livermore|
Recent progresses in our understanding of the Earth's core have crucially relied on the interplay between geodynamics and a number of adjacent disciplines in Earth Science. Improved seismic observations have recently provided challenging constraints on inner- and outer core heterogeneous structure, challenging standard geodynamic models and eventually requesting new ones. Recent first-principle calculations of core properties call for revisited evolution models for the geodynamo. Innovative geomagnetic data inversion methods provide constantly improving core flow imaging. (Magneto)Hydrodynamic experiments and numerical models provide an increasingly refined mechanistic description of the fluid motion associated with the geodynamo. Refined geomagnetic observation tools and paleomagnetic techniques provide primary constraints with an ever increasing accuracy.
This session welcomes multi-disciplinary contributions attempting to proceed towards an integrated, self-consistent picture of core structure and dynamics, and understand its overwhelming complexity.