• Presentations



GNSS Systematic Errors and Biases

  • Consistency of antenna products in the MGEX environment (A. Villiger, R. Dach, L. Prange, S. Schaer, A. Jäggi)  Icon pdf (3.2 MB)
  • Systematic errors present in absolute antenna calibrations (M. Moore)  Icon pptx (23.6 MB)
  • Assessment of GNSS antenna calibrations (S. Bergstrand, P. Jarlemark, M. Herbertsson)  Icon pdf (1.6 MB)
  • Force models for GPS orbit modeling (P. Ries)  Icon pptx (233.8 KB)
  • Impact of modern Earth orientation models on GPS precise orbit determination (A. Sibois, S. Desai)  Icon pptx (4.7 MB)
  • Modeling environmental loading effects at the observation level in GPS processing (J.-P. Boy)  Icon pdf (6.6 MB)
  • Systematic errors in IGS terrestrial frame products (P. Rebischung, Z. Altamimi)  Icon pptx (7.7 MB)

VLBI Systematic Errors and Biases

  • Source structure effects in geodetic VLBI (M. Xu, J. Anderson)  Icon pdf (7.0 MB)
  • Relativity models in VLBI (J. Gipson)  Icon pptx (859.1 KB)
  • VLBI scale systematics (D. MacMillan, H. Krasna)  Icon pdf (1.4 MB)
  • Gravitational deformation of radio telescopes (A. Nothnagel)  Icon pdf (1.2 MB)
  • Diurnal and semi-diurnal Earth rotation from 37 years of VLBI data (J. Gipson, L. Hesslow)  Icon pptx (3.6 MB)
  • Sub-daily ERP investigations (M. Otten, T. Springer)  Icon pptx (4.5 MB)

SLR Systematic Errors and Biases

  • ILRS: Current status and future challenges (M. Pearlman, G. Bianco, S. Merkowitz, C. Noll, E. Pavlis,V. Shargorodsky, Z. Zhang)  Icon pptx (11.1 MB)
  • The ILRS products with ITRF2014/SLRF2014 (C. Luceri, M. Pirri, E. Pavlis, M. Kuzmicz-Cieslak, G. Bianco)  Icon pptx (795.0 KB)
  • ILRS activities to monitor and remedy systematic errors in SLR (E. Pavlis, M. Kuzmicz-Cieslak)  Icon pptx (23.9 MB)
  • Time transfer (T2L2) between SLR stations: Applications to space geodesy (A. Belli, P. Exertier)  Icon pptx (3.8 MB)
  • Impact of atmospheric loading on POD of geodetic satellites and some Earth parameter estimates (R. König, E. Fagiolini, J.-C. Raimondo, M. Vei)  Icon pdf (649.3 KB)


DORIS Systematic Errors and Biases

  • Review of error signals in DORIS data seen as a result of ITRF2014 (G. Moreaux, F. Lemoine, J.-P. Boy)  Icon pdf (2.4 MB)
  • DORIS USO behavior revealed by Jason-2/T2L2 (F. Lemoine, P. Exertier, A. Belli, N. Zelensky)  Icon pdf (1.3 MB)
  • Using DORIS daily PPP results to investigate the effect of the South Atlantic Anomaly on Jason-2 oscillator (P. Willis, M. Heflin, B. Haines, Y. Bar-Sever, W. Bertiger, M. Mandea)  Icon pptx (4.2 MB)
  • Sentinel 3 USO observation with GNSS (F. Mercier, E. Jalabert)  Icon pdf (606.8 KB)
  • Impact of the South Atlantic Anomaly effect on the DORIS station position estimation (H. Capdeville , G. Moreaux, J.-M. Lemoine)  Icon pptx (1.9 MB)
  • Characterization and impact of DORIS scale variations (H. Capdeville, G. Moreaux, J.-M. Lemoine)  Icon pptx (1.0 MB)
  • Geocenter & TVG modeling for satellite altimetry POD (A. Couhert, N. Zelensky, F. Lemoine)

Reference Systems and Frames

  • Evaluation of xTRF2014 solutions (R. Dach, A. Susnik, A. Grahsl, A. Villiger, D. Arnold, A. Jäggi)  Icon pdf (50.0 MB)
  • DPOD2014: Operational update of DORIS TRF for precise orbit determination (G. Moreaux, P. Willis, F. Lemoine, N. Zelensky, A. Couhert,H. Ait Lakbir)  Icon pdf (1.6 MB)
  • A sequential estimation approach to determining TRFs (R. Gross, C. Abbondanza, M. Chin, M. Heflin, J. Parker, B. Soja, X. Wu)  Icon pdf (5.0 MB)
  • Specific aspects of TRF/CRF computations at DGFI-TUM (M. Blossfeld, D. Angermann, M. Seitz)  Icon pdf (2.4 MB)
  • Reference frame representations: The ITRF from the user perspective (Z. Altamimi, P. Rebischung, L. Métivier, X. Collilieux, K. Chanard)  Icon pptx (695.9 KB)

Conventional Mean Pole

  • The need for an updated definition and realization of a conventional mean pole path (N. Stamatakos)  Icon pdf (1.1 MB)
  • Mean pole: A problem or not a problem (F. Mercier, A. Couhert, J.-M. Lemoine)  Icon pdf (348.1 KB)
  • The IERS conventional mean pole – past and present (C. Bizouard)  Icon pptx (1.2 MB)
  • Conventional model update for rotational deformation (J. Ries)  Icon pdf (4.8 MB)
  • VLBI and choice of mean pole model (D. MacMillan)  Icon pdf (725.9 KB)
  • CMP model effects on ILRS products (E. Pavlis, M. Kuzmicz-Cleslak)  Icon pptx (5.7 MB)

Site Survey and Co-location


Standards, Conventions, and Formats

  • Next steps after GGOS BPS inventory (D. Angermann)  Icon pptx (2.1 MB)
  • Way forward updating the IERS Conventions (C. Bizouard)
  • Improving the standards for IERS products and homogenizing techniquespecific standards (T. Herring)  Icon pptx (46.5 KB)
  • A conventional value for the geoid reference potential W0 (L. Sánchez, R. Cunderlik, K. Mikula, Z. Minarechová, N. Dayoub, Z. Sima, V. Vatrt, M. Vojtisková)  Icon pptx (3.2 MB)
  • Unification of EOP format (C. Bizouard, N. Stamatakos, T. Herring) 
  • SINEX format developments (D. Thaller)  Icon pptx (71.3 KB)
  • SINEX_TRO v2.00: Solution (software/technique) INdependent EXchange format for TROpospheric and meteorological parameters (R. Pacione, J. Dousa)  Icon pptx (118.7 KB)
  • Proposal for long station names in SINEX format (P. Rebischung)  Icon pptx (2.1 MB)
  • Station name in SINEX (Z. Altamimi)  Icon pptx (62.5 KB)
  • SINEX format changes for multi-GNSS satellite metadata and antenna information (O. Montenbruck, P. Steigenberger, R. Dach)  Icon pptx (241.3 KB)
  • Unification of formats for gridded data (J.-P. Boy)  Icon pdf (721.7 KB)

Interoperability of Portals and Metadata

  • GGOS, GEO, and the interoperability of portals (R. Gross)  Icon pdf (8.9 MB)
  • Geodesy products and services in the GEOSS portal (G. Johnston)  Icon pptx (18.4 MB)
  • Metadata @ CDDIS (C. Noll)  Icon pdf (28.6 MB)
  • Progress toward a standards-based XML system for IGS network site log metadata management and dissemination using GeodesyML (F. Boler, N. Brown, C. Bruyninx, G. Johnston)  Icon pdf (2.1 MB)
  • IDS services for sharing DORIS data and products (L. Soudarin, A. Mezerette)  Icon pdf (1.8 MB)
  • The on-line application for gravity metadata by IGFS-CB (G. Vergos, V. Grigoriadis, R. Barzaghi)  Icon pdf (1.1 MB)
  • Including metadata into the future GGOS portal (G. Stangl, M. Madzak)  Icon ppt (4.4 MB)

Bureau of Networks and Observations

Learn more

Bureau of Products and Standards

Learn more

Focus Area

Unified Height System

Learn more

Focus Area

Geohazards Monitoring

Learn more

Focus Area

Sea Level Change, Variability, and Forecasting

Learn more

Focus Area

Geodetic Space Weather Research

Learn more
GGOS Core Sites
GGOS Calendar