| Date: | 2013-04-19 16:23:50 | |
| Sender: | Gross, Richard S (335N) <richard.s.gross@jpl.nasa.gov> | |
| Subject: | [SLR-Mail] No.2166: Theme on Earth Rotation and Dynamics at IAG SA | |
| Author: | Richard Gross | |
| Content: | ******************************************************************************** SLR Electronic Mail 2013-04-19 16:39:43 UTC Message No. 2166 ******************************************************************************** Author: Richard Gross Dear Colleagues - As part of the IAG Scientific Assembly that will be held in Potsdam, Germany during 01-06 September 2013 there will be sessions on the theme ”Science and Applications of Earth Rotation and Dynamics”. The description of the theme is given below. On behalf of the conveners of this theme I would like to draw your attention to this theme and encourage you to participate in it. We are developing a series of rich sessions that will explore all aspects of the Earth´s rotation. We hope that you will be able to join us in Potsdam for this exciting theme and the activities celebrating the 150th anniversary of the IAG. More information about the IAG Scientific Assembly can be obtained from its web site at While the deadline for submitting abstracts is 21 April 2013, there is a week or so grace period, so there is still time to submit your abstracts! Best regards, Richard .......................................................... Theme 4: Science and Applications of Earth Rotation and Dynamics The solid Earth is subject to a wide variety of forces including external forces due to the gravitational attraction of the Sun, Moon, and planets, surficial forces due to the action of the atmosphere, oceans, and water stored on land, and internal forces due to earthquakes and tectonic motions, mantle convection, and coupling between the mantle and both the fluid outer core and the solid inner core. The solid Earth responds to these forces by displacing its mass, causing changes in gravity, deforming its shape, and changing its rotation. Geodetic observing systems can measure these changes in gravity, shape, and rotation and can therefore be used to study both the forcing mechanisms themselves and the solid Earth’s response to the forcing mechanisms. As a result, geodetic observing systems can be used to gain greater understanding of the dynamic Earth system and of the Earth’s interior structure. This Theme will provide forums for discussing the geodetic observing systems used to measure changes in the Earth’s shape and rotation, the characteristics of those measurements, and their interpretation in terms of the structure and dynamics of the Earth system. Contributions are invited in the following topic areas: 1. Geophysical interpretation of the nutations and precession of the Earth. 2. Long period variations in Earth rotation (including pre-space based measurements). 3. Fluid effects of Earth rotation variations. 4. Relationship between the Earth´s gravity field and Earth rotation variations. 5. The accuracy of current measurement systems for polar motion, nutation, and LOD. 6. Near real-time Earth rotation measurements from satellite-based systems. 7. Relationship between dynamic and kinematic definitions of Earth rotation variations. 8. Relationship between different definitions for the rotational reference system. ..........................................................******************************************************************************** |