IDS activity report 2011 - International DORIS Service

10 IDS COMBINATIONGuilhem Moreaux (1)(1) CLS, France10.1 ACTIVITY SUMMARYIDS combination activities in 2011 were devoted to i) the pursuit of the IDS combination andthe improvement of the operational chain, ii) the pursuit of IDS 2010 campaign, iii) theanalyses of series including Cryosat-2 and iv) communications at EGU and AGU meetings.10.2 IDS ROUTINE COMBINATIONThe last 12 months were dedicated to the pursuit of the multi ACs weekly SINEXscombination. The combination procedure has been upgraded and consists now in 3 steps: 1)evaluation of ACs SINEXs w.r.t ITRF2008 2) combination of all ACs series and 3) evaluationof ACs SINEXs w.r.t the IDS combined series. Moreover, the evaluation process includes acomparison of the ACs DORIS stations network w.r.t the operational network as output of theSMOS database (see for example Figure 7). This new evaluation step allows, for example, toidentify operational stations, which are never processed by the ACs as well as to recommendACs to upgrade stations acronyms.Figure 7. Example of comparisons of the ACs DORIS stations network w.r.t the operationalnetwork from SMOS database.41