Pascale Ferrage

TL;DR: The organizational aspects of the IDS are addressed, there is now a wide international participation within IDS that should lead to future improvements in DORIS analysis strategies and DORis-derived geodetic products.

TL;DR: In 2018, the 25th year of development of radar altimetry was celebrated and the progress achieved by this methodology in the fields of global and coastal oceanography, hydrology, geodesy and cryospheric sciences as discussed by the authors.

TL;DR: Evaluation of the intrinsic quality of the new DORIS Terrestrial Reference Frame shows that the addition of data from the new missions equipped with the latest generation of DORis receiver results in an internal position consistency of 10 mm or better after mid-2008.

TL;DR: For the first time, the International DORIS Service (IDS) has produced a technique level combination based on the contributions of seven analysis centers (ACs), including the European Space Operations Center (ESOC), Geodetic Observatory Pecny (GOP), Geoscience Australia (GAU), the NASA Goddard Space Flight Center (GSFC), the Institut Geographique National (IGN), the Institute of Astronomy, Russian Academy of Sciences (INASAN, named as INA), and CNES/CLS (named as LCA) as mentioned in this paper.

TL;DR: The final IDS-3 combination includes solutions for 130 DORIS stations on 67 different sites of which 35 have occupations over 16 years (1993–2009), and has an internal position consistency (WRMS) that is 15 to 20 mm before 2002 and 8 to 10 mm after 2002.