IDS Workshop 
Venice 2006

IDS Workshop 2006Abstract

Combination of Polar motion parameters series obtained from DORIS

Dr Daniel GAMBIS(1), Mr Morad SAïL(1), Mr Teddy CARLUCCI(1)

(1) Observatoire de Paris, Paris, FRANCE

Session theme: Other topics: Earth Rotation


Recent polar motion parameter series derived from four independent DORIS Analysis Centers were analysed. Comparisons of these solutions to the International Earth Rotation and Reference Systems Service (IERS) solutions are performed. These series are affected by white noise and by a range of systematic fluctuations limiting precision and accuracy. After the identification and removal of these long term fluctuations we have performed a DORIS combined series based on these four solutions over the time interval 2000-2004. We show that the final precision is significantly better that one milliarcsecond (mas) on both polar motion component.

Corresponding author:

    Dr Daniel GAMBIS
    Observatoire de Paris, SYRTE
    61 avenue de l'observatoire
    75014 Paris
    Phone: +33 1 40 51 22 29
    Fax: +33 1 40 51 22 91


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