| Date: | 2006-01-10 02:06:00 | |
| Sender: | Markus Rothacher <slrmail@dgfi.badw.de> | |
| Subject: | [SLR-Mail] No. 1428: Announcement of Session G4 of EGU Meeting | |
| Author: | Markus Rothacher | |
| Content: | ******************************************************************************** SLR Electronic Mail 2006-01-10 02:06:00 UTC Message No. 1428 ******************************************************************************** Author: Markus Rothacher Subject: Announcement of Session G4 of EGU Meeting Dear Colleagues, we would like to draw your attention to session G4 ”Interactions between the three pillars of space geodesy: surface geometry, Earth rotation and gravity field” at the EGU General Assembly to be held in Vienna, Austria, April 2-7, 2006. The topic of session G4 has to be seen in the context of the Global Geodetic Observing System (GGOS) project of the IAG. It tries to cover the scientific issues concerning the integration of the space geodetic techniques. The deadline for the submission of abstracts is January 13, 2006, for online submission (January 9, 2006, else). Further information is available at the web site of the conference: http://meetings.copernicus.org/egu2006/ We are looking forward to your contribution to this challenging and interesting topic. With best regards, Markus Rothacher, Hermann Drewes Conveners Session G4 Description of Session G4: Interactions between the three pillars of space geodesy: surface geometry, Earth rotation and gravity field ---------------------------------------------------------------- At the IAG Scientific Assembly in Cairns in Summer 2005 the Global Geodetic Observing System (GGOS), a project of the IAG entered its operational phase. One of the goals of GGOS is the integration of the three pillars of geodesy, namely the Earth´s shape (including the oceans), Earth rotation and the Earth´s gravity field, as well as their temporal variations. The topic of this session are all the relationships and interactions between these three pillars. Contributions are welcome from purely theoretical and/or modelling considerations to observational evidence of the relationships derived from the space geodetic techniques including VLBI, SLR, DORIS, GNSS, the altimetry and gravity missions, and data on the global geophysical fluids. We also encourage contributions showing results based on a combined and consistent estimation of parameters from all three pillars. The consistent modelling of all three (or at least two of the three) pillars in a physical sense and the setup of common standards for the geometrical as well as the gravimetrical component, should also be considered in such an integration process and belong to the scope of this session. Examples of interesting relationships are, e.g., reference frame origin and orientation, the low-degree gravity field coefficients (C01, S11, C11, S21, C21, and S22), and the position and orientation of the Earth´s figure and rotation axes; loading effects seen as surface deformation, gravity field changes and Earth rotation variations; global mass transport, conservation of mass and angular momentum; connections between ”wind” and ”matter” terms derived from Earth rotation, gravity field variations and surface deformation; variations in polar motion and length of day related to changes of the changes of the Earth´s inertia tensor and J2 (e.g., from SLR or CHAMP/GRACE); etc. -- Prof. Dr. phil. nat. Markus Rothacher GeoForschungsZentrum Potsdam (GFZ) Department 1: Geodesy & Remote Sensing Telegrafenberg A 17, D-14473 Potsdam, Germany phone: +49 (0)331 288-1100 fax: +49 (0)331 288-1111 e-mail: rothacher@gfz-potsdam.de www: http://www.gfz-potsdam.de From: slrmail@dgfi.badw.de ******************************************************************************** |