G004:
Earth and Planetary Rotation: From Core to Crust





Session ID#: 22871

Session Description:
The Earth's rotation changes on a wide range of time scales, reflecting the wide range of processes affecting it, from external tidal forces to surficial processes involving the atmosphere, oceans, and hydrosphere to internal processes acting both at the core-mantle boundary as well as within the solid Earth itself. In addition, the periods of the resonances in the Earth's rotation depend upon the internal structure and constitution of the Earth. Observations of the Earth's rotation can therefore be used to place constraints on a wide range of dynamical processes of the solid Earth, including glacial isostatic adjustment, mantle anelasticity, core-mantle coupling, core flattening, core angular momentum, torsional oscillations of the core, and the strength of the magnetic field at the inner core and core-mantle boundaries. This session is a forum for discussing the use of rotation measurements to constrain the structure and dynamical processes of the Earth and other planets.
Primary Convener:  Richard S Gross, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
Conveners:  Aleksander Brzezinski, Warsaw University of Technology, Warszawa, Poland, Veronique M A Dehant, Royal Observatory of Belgium, Brussels, Belgium and Jose M. Ferrandiz, University of Alicante, Alicante, Spain

Cross-Listed:
  • P - Planetary Sciences
Index Terms:

1213 Earth's interior: dynamics [GEODESY AND GRAVITY]
1223 Ocean/Earth/atmosphere/hydrosphere/cryosphere interactions [GEODESY AND GRAVITY]
1239 Earth rotation variations [GEODESY AND GRAVITY]
5450 Orbital and rotational dynamics [PLANETARY SCIENCES: SOLID SURFACE PLANETS]

Abstracts Submitted to this Session:

Olivier de Viron, University of La Rochelle, La Rochelle, France, Paul Rebischung, LASTIG LAREG, IGN, ENSG, Univ Paris Diderot, Sorbonne Paris Cité, F-75013 Paris, France and Michel J. Van Camp, Observatoire Royal de Belgique, Brussel, Belgium
Sébastien Bernard Lambert1, Yann Ziegler1, Severine Rosat2 and Christian Bizouard3, (1)SYRTE, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universites, UPMC Univ, Paris 06, LNE, Paris, France, (2)IPGS-EOST, Strasbourg, France, (3)SYRTE, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Univ. Paris 06, LNE, Paris, France
Alexandre Couhert1, Flavien Mercier1 and Christian Bizouard2, (1)CNES French National Center for Space Studies, Toulouse Cedex 09, France, (2)SYRTE, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Univ. Paris 06, LNE, Paris, France
Andrew Watkins1, Richard S Gross2 and Yuning Fu1, (1)Bowling Green State University, Department of Geology, Bowling Green, OH, United States, (2)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
Behnam Seyed-Mahmoud, University of Lethbridge, Lethbridge, AB, Canada, Michael G Rochester, Memorial Univ Newfoundland, St Johns, NL, Canada and Yves J G Rogister, EOST École et Observatoire des Sciences de la Terre, Strasbourg Cedex, France
John M Gipson, NASA Goddard Space Flight Center, Greenbelt, MD, United States
Jose M. Ferrandiz1, Santiago Belda-Palazón1, Robert Heinkelmann2, Maria Karbon3, Tobias Nilsson2 and Harald Schuh4, (1)University of Alicante, Alicante, Spain, (2)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, (3)University of Bonn, Bonn, Germany, (4)GFZ Potsdam, Potsdam, Germany
James T Ratcliff, Jet Propulsion Laboratory, Pasadena, CA, United States and Richard S Gross, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
Dana J Caccamise II, NOAA's National Geodetic Survey, San Diego, CA, United States and William A Stone, NOAA's National Geodetic Survey, Santa Fe, NM, United States
Jolanta Nastula1, T. Mike Chin2, Richard S Gross2, Malgorzata Winska1 and Justyna Winska1, (1)Space Research Center Polish Academy of Sciences, Warszawa, Poland, (2)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States

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