DI43A:
The Earth's Core: Constraints on the Earth’s Metallic Heart from Multidisciplinary Approaches II Posters

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Session ID#: 13083

Session Description:
Understanding the complex nature of the Earth’s core, including stratified layers in the liquid outer core and the structure of the solid inner core, requires combined knowledge of its thermal, compositional, electromagnetic and mineralogical state. These fundamental factors determine the age of the inner core, as well as the history and present operation of the geodynamo.
How are inner core complexities observed seismologically related to the outer core dynamics? Are they imparted to the inner core surface by the dynamics of the liquid and subsequently advected by flow within the core?
Multi-disciplinary collaboration and integration of individual results is crucial to progress in unraveling the intriguing properties of both the inner and outer core. With a multi-disciplinary spirit in mind, this session invites contributions from seismology, mineral physics, geodynamics, geomagnetism, geochemistry, and mathematical geophysics in a joint effort to understand the Earth’s metallic heart.
Primary Convener:  Hrvoje Tkalčić, Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia
Conveners:  Hrvoje Tkalčić, Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia, Jiachao Liu, Michigan State University, Earth and Environmental Sciences, East Lansing, United States and Christopher C Finlay, DTU National Space Institute, København Ø, Denmark
Chairs:  Christopher C Finlay, DTU National Space Institute, København Ø, Denmark and Hrvoje Tkalčić, Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia
OSPA Liaison:  Marine Lasbleis, Tokyo Institute of Technology, Earth Life Science Institute, Tokyo, Japan

Cross-Listed:
  • GP - Geomagnetism, Paleomagnetism and Electromagnetism
  • MR - Mineral and Rock Physics
  • S - Seismology
Index Terms:

1015 Composition of the core [GEOCHEMISTRY]
1507 Core processes [GEOMAGNETISM AND PALEOMAGNETISM]
3924 High-pressure behavior [MINERAL PHYSICS]
7207 Core [SEISMOLOGY]

Abstracts Submitted to this Session:

Anisotropy of the innermost inner core from body wave and normal mode observations (117835)
Arwen Fedora Deuss, Madelon Smink, Dagmar Bouwman, Jasper Ploegstra and Runa van Tent, Utrecht University, Utrecht, Netherlands
Equatorial anisotropy in the Earth’s inner-inner core: evidence from seismic interferometry at low latitudes (143208)
Tao Wang1, Xiaodong Song2, Benjun Wu3, Liangshu Wang1 and Mingjie Xu1, (1)Nanjing University, Nanjing, China, (2)SinoProbe Laboratory, School of Earth and Space Sciences, Peking University, Beijing, China, (3)Nanjing University, School of Earth Sciences and Engineering, Nanjing, China
Constraints on Inner Core structure from P′P′ array-based observations (147236)
Daniel Andrew Frost, University of California Berkeley, Berkeley Seismological Laboratory, Berkeley, United States and Barbara A Romanowicz, University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States
Seismic Structure in the Vicinity of the Inner Core Boundary beneath northeastern Asia  (149688)
Anais Sandra Ibourichene, Institut de Physique du Globe de Paris, Paris, France and Barbara A Romanowicz, University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States
Seismic Structures of the Earth's Inner Core Boundary Beneath the Bearing Sea and Mexico (176587)
Dongdong Tian, University of Science and Technology of China, School of Earth and Space Sciences, Hefei, China and Lianxing Wen, Stony Brook University, Stony Brook, NY, United States; University of Science and Technology of China, Hefei, China
Evidence for Strong Core-mantle Coupling from Long-wavelength Features of the Topmost Inner Core (185790)
Jing Jin, University of Illinois at Urbana Champaign, Urbana, IL, United States and Xiaodong Song, SinoProbe Laboratory, School of Earth and Space Sciences, Peking University, Beijing, China
Modeling of Inner Core Boundary Topography with PKiKP and PKPCdiff (125165)
Susini de Silva, Univ Connecticut, Storrs, CT, United States, Vernon F Cormier, University of Connecticut, Groton, CT, United States and Yingcai Zheng, University of Houston, Earth and Atmospherical Sciences Dept, Houston, TX, United States
Earth’s Outer Core Properties Estimated Using Bayesian Inversion of Normal Mode Eigenfrequencies (141300)
Jessica C E Irving, University of Bristol, School of Earth Sciences, Bristol, BS8, United Kingdom, Sanne Cottaar, University of Cambridge, Cambridge, United Kingdom and Vedran Lekic, University of Maryland College Park, College Park, MD, United States
A first step to compare geodynamical models and seismic observations of the inner core (143438)
Marine Lasbleis, Ecole Normale Supérieure Lyon, Lyon, France, Lauren Waszek, University of Maryland College Park, Department of Geology, College Park, United States and Elizabeth A Day, Imperial College London, Earth Science and Engineering, London, United Kingdom
Inner Core Anisotropy: Can Seismic Observations be Reconciled with Ab Initio Calculations of Elasticity? (160690)
Xin Song, University of Southern California, Los Angeles, CA, United States and Thomas H Jordan, Southern California Earthquake Center, Los Angeles, CA, United States
Identification of dominant flow structures in rapidly rotating convection of liquid metals using Dynamic Mode Decomposition (131095)
Susanne Horn1, Peter J. Schmid1 and Jonathan M Aurnou2, (1)Imperial College London, Mathematics, London, United Kingdom, (2)University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, United States
An accelerating high-latitude jet in Earth’s core (155967)
Philip W Livermore, University of Leeds, School of Earth and Environment, Leeds, LS2, United Kingdom, Christopher C Finlay, DTU National Space Institute, København Ø, Denmark and Rainer Hollerbach, University of Leeds, Leeds, United Kingdom
A Hybrid Finite-Volume Fourier Method for Modeling Wave Dynamics in a Stably-Stratified Core (198260)
Nicholas R Knezek, University of California Berkeley, Berkeley, CA, United States and Bruce A Buffett, University of California Berkeley, Earth and Planetary Science, Berkeley, CA, United States
Separation of core and lithospheric magnetic fields by co-estimation of equivalent source models from Swarm data (146976)
Christopher C Finlay1, Christian Vogel1 and Nils Olsen2, (1)DTU National Space Institute, København Ø, Denmark, (2)Technical University of Denmark, Kgs. Lyngby, Denmark
Coupled thermo-chemical boundary conditions in double-diffusive geodynamo models at arbitrary Lewis numbers.  (146557)
Mathieu Bouffard, Ecole Normale Supérieure Lyon, Lyon, France
Spectrometry of the Earth using neutrino oscillations (129600)
Carsten Rott, Sungkyunkwan University, Suwon, Gyeonggi-do, Korea, Republic of (South) and Akimichi Taketa, Earthquake Research Institute, University of Tokyo, Tokyo, Japan

See more of: Study of Earth's Deep Interior