Preliminary work on the DORIS contribution to the next International Terrestrial Reference Frame
Abstract
For the preparation of the next ITRF realization (ITRF 2013), the IDS Combination Center has initiated estimation of DORIS stations positions/velocities as well as Earth orientation parameters from DORIS data beyond ITRF2008 (i.e. January 2009). These computations are based on the latest series of all of the 7 IDS Analysis Centers multi-satellite weekly SINEX solutions from January 2009 to June 2012. The first objective of this study is to analyze the impact of the new DORIS satellites (Jason-2, Cryosat-2 and HY-2A) in terms of (1) geocenter and scale solutions; (2) stations positions. The second purpose is to compare DORIS and GPS only positions and velocities of DORIS-GPS co-located sites. Then, after evaluating potential contribution of DORIS for the determination of tectonic model such as GEODVEL, we will conclude by assessing recommendations for the DORIS contribution to the next ITRF.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2012
- Bibcode:
- 2012AGUFM.G51C..04M
- Keywords:
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- 1229 GEODESY AND GRAVITY / Reference systems;
- 1243 GEODESY AND GRAVITY / Space geodetic surveys