****************************************************************************** dorismail 21-Aug-2009 22:19:57 Message No 0615 ****************************************************************************** Author: Frank Lemoine Subject: Earth Rotation Session at Fall AGU Meeting Author: Richard Gross Subject: No 0615 : Earth Rotation Session at Fall AGU Meeting Dear Colleagues - As part of the 2009 Fall Meeting of the AGU that will be held in San Francisco, California during 14-18 December 2009 there will be a session on "The Estimation, Prediction, and Excitation of Earth Orientation Variations. The description of the session is given below. On behalf of the conveners I would like to draw your attention to this session and encourage you to participate in it. We are developing a rich session that will cover all aspects of the Earth's rotation including its excitation and the acquisition, reduction, combination, and prediction of the EOPs. We hope that you will be able to join us in San Francisco for this exciting session. More information about the 2009 Fall Meeting of the AGU can be obtained from its web site at . Please note that the deadline for submitting abstracts is 03 September 2009. Hope to see you in San Francisco! Best regards, Richard .......................................................... G16: The Estimation, Prediction, and Excitation of Earth Orientation Variations Given current capabilities in space-geodesy, observations of Earth Orientation (that is precession/nutation, rotation, and polar motion) are being made with higher temporal resolution and with greater accuracy than before, allowing smaller scale fluctuations to be detected with finer resolution than was possible before. Such fluctuations are the rotational response of the Earth to forcing by geophysical fluids, and so information about the excitation of Earth orientation by the atmosphere, oceans, cryosphere, hydrosphere and core-mantle interactions is sought here. Relevant geophysical observations may be both in-situ and remotely sensed, and are often combined through sophisticated models and data assimilation schemes. In this session, we wish to focus on Earth orientation, its excitation, estimation and prediction. Recent advances in geodetic observational techniques, Earth orientation predictive capability, and the use of Earth orientation parameters to transform between the Celestial and Terrestrial Reference frames is welcome in this session. Conveners; Richard Gross Jet Propulsion Laboratory 4800 Oak Grove Drive Pasadena, CA, USA 91109 818 354-4010 Richard.Gross@jpl.nasa.gov Thomas Johnson National Geospatial-Intelligence Agency 12310 Sunrise Valley Drive Reston, VA, USA 20191 703 735-2618 Thomas.J.Johnson@nga.mil Brian Luzum U. S. Naval Observatory 3450 Massachusetts Avenue, N.W. Washington, DC, USA 20392 202 762-0242 brian.luzum@usno.navy.mil Please do not reply directly to this message, but send comments and suggestions to IDS.central.bureau@cls.fr