G003
Earth and Planetary Rotation: Nutation, Wobble, and Spin
Session ID#: 78493
Session Description:
The rotation of the Earth and planets 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 (including climate) to internal processes acting both at internal boundaries as well as within the solid body itself. In addition, the frequencies of resonances depend upon the internal structure and constitution of the rotating body. Observations of rotation can therefore be used to place constraints on a wide range of dynamical processes. 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. The session also welcomes contributions about recent advances in theoretical and empirical modeling of Earth and planetary rotation including updates to observing systems, data, products, predictions and conventions relating to Earth and planetary rotation.
Index Terms:
1239 Earth rotation variations [GEODESY AND GRAVITY]
5450 Orbital and rotational dynamics [PLANETARY SCIENCES: SOLID SURFACE PLANETS]
Primary Convener: Richard S Gross, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
Conveners: Veronique M A Dehant, Royal Observatory Belgium, Brussels, Belgium, Jose M. Ferrandiz, University of Alicante, Alicante, Spain and Jolanta Nastula, Space Research Centre of Polish Academy of Sciences, Warsaw, Poland
Primary Liaison: Richard S Gross, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
Predicting celestial pole offsets using a Kalman filter and smoother (498298)
Jolanta Nastula1, T. Mike Chin2, Richard S Gross2, Justyna Śliwińska1 and Malgorzata Wińska3, (1)Space Research Centre of Polish Academy of Sciences, Warsaw, Poland, (2)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (3)Institute of Roads and Bridges, Warsaw University of Technology, Warsaw, Poland
Operational Combinations of US Navy Model-Based Atmospheric and Ocean Angular Momentum Series to Forecast Earth Orientation Parameters. (507377)
Nicholas G Stamatakos, US Naval Observatory, Washington, DC, United States, Dennis McCarthy, US Naval Observatory Ret/Ctr, Washington, DC, United States and David Salstein, Atmospheric and Environmental Research, Lexington, MA, United States
LaRa (Lander Radioscience) on the ExoMars 2020 Kazachok lander. (511231)
Veronique M A Dehant1, Sébastien Le Maistre1, Marie Yseboodt1, Rose-Marie Baland1, Ozgur Karatekin1, Marie-Julie Péters1, Attilio Rivoldini1, Tim Van Hoolst1, Bart Van Hove1, Alexander Kosov2 and the LaRa team, (1)Royal Observatory of Belgium, Brussels, Belgium, (2)IKI Space Research Institute of the Russian Academy of Sciences, Moscow, Russia
Effect of the Love numbers modeling on the precession of the non-rigid Earth (539101)
Jose M. Ferrandiz, University of Alicante, Alicante, Spain, Tomás Baenas, University Centre of Defence at the Spanish Air Force Academy, Santiago de la Ribera, Spain and Alberto Escapa, University of León, Aerospace Enginering, León, Spain
On The Low Q of the Chandler Wobble: Towards the Causative Case for Mechanical Instability in Earth’s Fluid Outer Core (543379)
L Ian Lumb, York University, Division of Natural Science, Faculty of Science, Toronto, ON, Canada and Keith D Aldridge, York Univ, Toronto, ON, Canada
First Results from the Rotation and Interior Structure Experiment on the InSight Mission to Mars (Invited) (557107)
William M Folkner1, Veronique M A Dehant2, Sébastien Le Maistre2, Marie Yseboodt2, Attilio Rivoldini2, Tim Van Hoolst2, Daniel S Kahan1, Dustin Buccino1 and Fred J Calef III1, (1)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (2)Royal Observatory of Belgium, Brussels, Belgium
