The International DORIS Service (IDS) workshop was held on September 25-26, 2012 in Venice-Lido, Italy. The purpose of this workshop was to review the progress in the DORIS technique and provides perspectives for the contributions of DORIS to the Global Geodetic Observing System (GGOS). The IDS workshop was organized in conjunction with:
- The exceptional symposium on "20 Years of Progress in Radar Altimetry", 23-29 September 2012
- The Ocean Surface Topography Science Team meeting (OSTST), 26-28 September 2012
- The 4th Argo Science workshop, 26-29 September 2012.
The posters of the OSTST meeting are available on AVISO web site
Participants to the workshop included five IDS Analysis Centers (of 8 total), IDS Combination Center representatives, many people involved in the DORIS system management, and other scientific groups interested in the DORIS data/products. We were pleased to welcome some new users and potential partners with promising results and perspectives. The discussions identified possible improvements of IDS solutions in line with the DORIS system, and important actions for preparing the IDS submission for inclusion in the next ITRF realization (ITRF2013).
Main topics discussed included the following:
1- Since DGXX and DORIS data are now available in RINEX format, there is an increased interest in the DORIS data to study the ionosphere;
2- An onboard DORIS receiver (DIRGO) is under consideration at the ARL / University of Texas (USA) to observe the ionosphere;
3- Discussions are underway between NASA participants and CNES & IGN to conduct studies on DORIS/VLBI2010 signal interference at Greenbelt/GGAO site;
4- Progress in the estimation of the EOP parameters has been achieved with DORIS, thanks to the contribution of the new receiver DGXX (on board Jason2, Cryosat2, HY2A);
5- Calibration of DORIS / STAREC antennas in anachoeic chambers suggests the need to apply a STAREC antenna phase center model that may have possible impact on future IDS solutions;
6- IDS Analysis Centers are actively preparing their contribution for the next ITRF (2013) realization.
The IDS event was also a platform for discussion and coordination of future activities within the Analysis Working (see the page of the AWG meeting, Sept. 26, 2012) and Governing Board meetings.
The presentations of the IDS Workshop can be found hereafter. All the abstracts can be found in the abstract book: IDS Workshop 2012 abstract book
Oral and Poster presentations
Tuesday, September 25th, 2012
Session 1 – IDS and DORIS system news
Chairpersons: Pascal Willis (IGN/IPGP), Pascale Ferrage (CNES)
International DORIS Service: Current status and perspectives P. Willis (IGN/IPGP)
DORIS system developments and Future Missions A. Auriol (CNES)
DORIS network 2012 status report J. Saunier (IGN)
DORIS on HY-2A M. Dejus (CNES)
DORIS ground antennas Radio Frequency characterization C.Tourain(CNES)
DORIS/DIODE on board Pleiades PHR1A : results and lessons learned C. Jayles (CNES)
From Jason2 to Jason3 : DIODE enhancements J.P. Chauveau (AKKA)
Session 2 – Posters
DORIS: a permanent evolving space technique for geophysical research activities P. Ferrage (CNES)
Polar motion and its accuracy analysis monitored by DORIS technique X. Wang (SAO) CANCELED
Combination of space techniques at the normal equation level D. Gambis (OP)
Comparison of Earth radiation pressure models for DORIS satellites C. Rodriguez-Solano (IAPG)
DORIS measurement exploitation for ionosphere studies C. Tourain (CNES)
On the proper use of the EIGEN-6 models for altimetric orbit computation over decades R. Biancale (GRGS)
Session 3 – Geodesy and Precise Orbit Determination
Chairpersons: Michiel Otten (ESA/ESOC), Laurent Soudarin (CLS)
Improved DORIS Reference Frame Solutions from NASA GSFC F. Lemoine (NASA/GFSC) CANCELED
Update of the SAA corrective model for Jason-1 DORIS data and discussion about a SAA corrective model for Spot5 H. Capdeville (CLS)
Evaluation of Atmospheric Loading and Improved Troposphere Modelling N. Zelensky (GFSC/SGT)
A review of some systematic errors observed in the Precision Orbit Determination of recent Doris satellites L. Cerri (CNES)
An accuracy assessment of DORIS orbits: Jason2 R. Govind (GAU) CANCELED
Session 4 – Multiple applications, Geophysics
Chairpersons: Cedric Tourain (CNES), Nikita Zelenski (GSFC/SGT)
Overview of DORIS Frequency Permits, RFI Issues Worldwide P. Ferrage (CNES)
Colocation considerations and Radio Frequency Interference (RFI) Mitigation Techniques L. Hilliard (NASA/GSFC)
Tropospheric parameters from DORIS in comparison to other techniques during CONT campaigns J. Boehm (Wien UT)
Contributions of DORIS to ionosphere modeling D. Dettmering (GDFI)
Ionospheric Radio Scintillations and TEC Using the CITRIS Reception of DORIS Transmissions P. Bernhardt (NRL) CANCELED
DORIS Observations from Future LEO Constellations Space Geodesy Project (SGP) D. Rainwater (ARL:UT)
Wednesday, September 26th, 2012
Session 5 – IDS Analysis activity
Chairpersons: Sergey Kuzin (INASAN), Guilhem Moreaux (CLS)
Research activities at the IDS Combination Center G. Moreaux (CLS)
Current research activities at GOP DORIS analysis center P. Stepanek (VUGTK)
PDF slides Presented by C. Rodriguez-Solano (IAPG)
Recent improvements in DORIS processing at ESOC M. Otten (ESA/ESOC)
Comparaison of station coordinates, estimated by DORIS and Glonass measurements for collocated sites S. Kuzin (INASSAN)
DORIS positioning : performance assessment from the last data processing at CNES/CLS Analysis Center L. Soudarin (CLS)
Implementation and use of the DORIS RINEX phase measurement in the GINS software J.M. Lemoine (GRGS)
Analysis Working Group meeting - 26 September 2012
IDS Governing Board meeting - 26 September 2012
IDS scientific committee: