Reference frames for applications in geosciences : proccedings [i.e. proceedings] of the symposium in Marne-La-Vallee, 4-8 October, 2010

Reference systems and frames are of primary importance for many Earth science applications, satellite navigation as well as for practical applications in geo-information. A precisely defined reference frame is needed for the quantification of, e.g. Earth rotation and its gravity field, global and regional sea level variation, tectonic motion and deformation, post-glacial rebound, geocenter motion, large scale deformation due to Earthquakes, local subsidence and other ruptures and crustal dislocations. All of these important scientific applications fundamentally depend on a truly global reference system that only space geodesy can realize. This volume details the proceedigns of the IAG Symposium REFAG2010 (Marne la Vallée, France, October 4-8, 2010) The primary scope of REFAG2010 was to address today’s achievements on theoretical concepts of reference systems and their practical implementations by individual space geodetic techniques and their combinations, underlying limiting factors, systematic errors and novel approaches for future improvements. Front Matter....Pages i-xiii Geodetic Reference Frames: 40 Years of Technological Progress and of International Cooperation: 1970–2010....Pages 1-4 Front Matter....Pages 5-5 ITRF Combination: Theoretical and Practical Considerations and Lessons from ITRF2008....Pages 7-12 Distributed Processing for Large Geodetic Solutions....Pages 13-18 Geocenter Variations from Analysis of SLR Data....Pages 19-25 External Evaluation of the Origin and Scale of the International Terrestrial Reference Frame....Pages 27-31 GRGS Evaluation of ITRF2008, from SLR Data....Pages 33-38 Alternative Definitions of the Terrestrial Reference System and Its Realization in Reference Frames....Pages 39-44 Evaluation of GNSS Monument Stability....Pages 45-50 Comparison of Realizations of the Terrestrial Reference Frame....Pages 51-56 The 2010 Reference Edition of the IERS Conventions....Pages 57-61 Dependence of IGS Products on the ITRF Datum....Pages 63-67 Recent Results from the IGS Terrestrial Frame Combinations....Pages 69-74 Local Ties and Co-Location Sites: Some Considerations After the Release of ITRF2008....Pages 75-80 Small Trends and Oscillations in the 25 Year ILRS Translations and Scale Time Series....Pages 81-86 Accuracy Assessment of the ITRS 2008 Realization of DGFI: DTRF2008....Pages 87-93 Monitoring Site Stability at the Space Geodesy Facility, Herstmonceux, UK....Pages 95-102 Front Matter....Pages 103-103 A Priori Gradients in the Analysis of Space Geodetic Observations....Pages 105-109 Why Combining at the Observation Level?....Pages 111-117 Time-Correlated GPS Noise Dependency on Data Time Period....Pages 119-124 GPS-Specific Local Effects at the Geodetic Observatory Wettzell....Pages 125-130 Front Matter....Pages 131-131 The First Insight into Station Velocities in Republic of Serbia....Pages 133-136 IAG WG SC1.3 on Regional Dense Velocity Fields: First Results and Steps Ahead....Pages 137-145 Local Ties at Fundamental Stations....Pages 147-152 Long-Term Stability of the SIRGAS Reference Frame and Episodic Station Movements Caused by the Seismic Activity in the SIRGAS Region....Pages 153-161 Front Matter....Pages 163-163 The Impact of the New IAU Resolutions on ICRF Definition and Realization....Pages 165-173 Effects of ICRF2 on the TRF, CRF, and EOP....Pages 175-179 Systematic Inconsistencies Between VLBI CRF and TRF Solutions Caused by Different Analysis Options....Pages 181-189 The Celestial Reference Frame at X/Ka-band (8.4/32 GHz)....Pages 191-196 Systematic Errors of a VLBI Determined TRF Investigated by Simulations....Pages 197-202 Front Matter....Pages 203-203 Influence of Vertical Datum Inconsistencies on Gravity Field Modelling....Pages 205-213 The Role of a Conventional Transformation Scheme for Vertical Reference Frames....Pages 215-220 Comparison of Latest Global and Regional Gravimetric Geoid Models with GPS/Leveling Geoidal Undulations Over Japan....Pages 221-227 Creation of Vertical Reference Surfaces at Sea Using Altimetry and GPS....Pages 229-235 Combined Adjustment of GRACE and Geodetic Observations of Vertical Crustal Motion in the Great Lakes Region....Pages 237-244 Some Features of TOPEX/POSEIDON Data Application in Gravimetry....Pages 245-251 Towards the Unification of the Vertical Datum Over the North American Continent....Pages 253-258 Front Matter....Pages 259-259 Improving SIRGAS Ionospheric Model....Pages 261-266 Use of Reference Frames for Interplanetary Navigation at JPL....Pages 267-269 Using Modified Allan Variance for Time Series Analysis....Pages 271-276 The Role of the TRS in Precision Agriculture: DGPS with EGNOS and RTK Positioning Using Data from NTRIP Streams....Pages 277-282 Back Matter....Pages 283-284