DI33A:
Connecting the Evolution of the Earth's Magnetic Field and the Dynamics of the Deep Interior II Posters

Submit an Abstract to this Session



Session ID#: 23048

Session Description:
Observations of the Earth’s magnetic field provide a window into the internal dynamics of the deep interior. Advances in paleomagnetic, archeomagnetic, observatory, and modern satellite measurements reveal that the geodynamo is ancient and seemingly persistent, yet the detail of how it operates and manifests in changes on yearly to millennial to million year timescales remain poorly known. Modelling the conditions representative of Earth’s core remain challenging, yet it is only by constraining such models with observations that a complete understanding of the core will emerge. This session seeks to bring together perspectives from the observational community with those from the modelling community to convene on the current state of the geodynamo and its evolution. We invite contributions that advance our understanding of the evolution of the field - from paleomagnetic to modern measurements - along with numerical models or theory that provide insight into the deep interior's history and dynamics.
Primary Convener:  Peter E Driscoll, Carnegie Institution for Science, Earth & Planets Lab, Washington, United States
Conveners:  Philip W Livermore, University of Leeds, School of Earth and Environment, Leeds, LS2, United Kingdom, Richard K Bono, University of Liverpool, Liverpool, United Kingdom and Vincent Hare, University of Rochester, Department of Earth & Environmental Sciences, Rochester, NY, United States
Chairs:  Peter E Driscoll, Carnegie Institution for Science, Earth & Planets Lab, Washington, United States, Richard K Bono, University of Liverpool, Liverpool, United Kingdom and Vincent Hare, University of Rochester, Department of Earth & Environmental Sciences, Rochester, NY, United States
OSPA Liaison:  Philip W Livermore, University of Leeds, School of Earth and Environment, Leeds, LS2, United Kingdom
Co-Organized with:
Study of Earth's Deep Interior, and Geomagnetism, Paleomagnetism and Electromagnetism

Cross-Listed:
  • GP - Geomagnetism, Paleomagnetism and Electromagnetism
Index Terms:

1507 Core processes [GEOMAGNETISM AND PALEOMAGNETISM]
1510 Dynamo: theories and simulations [GEOMAGNETISM AND PALEOMAGNETISM]
1521 Paleointensity [GEOMAGNETISM AND PALEOMAGNETISM]
1522 Paleomagnetic secular variation [GEOMAGNETISM AND PALEOMAGNETISM]

Abstracts Submitted to this Session:

A study of the required Rayleigh number to sustain dynamo with various inner core radius (249004)
Yuki Nishida1, Yuto Katoh1, Hiroaki Matsui2 and Atsushi Kumamoto3, (1)Tohoku University, Department of Geophysics, Graduate School of Science, Sendai, Japan, (2)University of California Davis, Davis, CA, United States, (3)Tohoku Univ, Sendai, Japan
Comparison of Large eddy dynamo simulation using dynamic sub-grid scale (SGS) model with a fully resolved direct simulation in a rotating spherical shell (260305)
Hiroaki Matsui, University of California Davis, Davis, CA, United States and Bruce A Buffett, University of California Berkeley, Earth and Planetary Science, Berkeley, CA, United States
Bridging the mantle: A comparison of geomagnetic polarity reversal rate, global subduction flux, and true polar wander records (276508)
Andrew John Biggin, University of Liverpool, Department of Earth, Ocean and Ecological Sciences, Liverpool, United Kingdom, Mark Hounslow, Lancaster University, Lancaster Environment Centre, Lancaster, United Kingdom and Mat Domeier, University of Oslo, Oslo, Norway
Archaeomagnetic evidence for a continuous decrease of the geomagnetic axial dipole for the last millennium (283637)
Wilbor Poletti, University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, United Kingdom, Andrew John Biggin, University of Liverpool, Department of Earth, Ocean and Ecological Sciences, Liverpool, United Kingdom, Ricardo IF Trindade, Universidade de São Paulo, São Paulo, Brazil, Gelvam A Hartmann, Universidade Estadual de Campinas, Geologia e Recursos Naturais, Campinas, Brazil and Filipe Terra-Nova, LPGN Laboratoire de Planétologie et Géodynamique de Nantes, Nantes Cedex 03, France

See more of: Study of Earth's Deep Interior