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ISBN: 978-3-031-63855-8

Series Statement: International Association of Geodesy symposia 156

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DOI: 10.1007/978-3-031-63855-8

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Format: 1 online resource (251 pages)

Edition: 1st ed. 2024.

ISBN: 3-031-63855-7

Series Statement: International Association of Geodesy Symposia, 156

Content: This open access volume contains a selection of papers presented at three different IAG Symposia held in 2022: GGHS2022 – Gravity, Geoid, and Height Systems 2022, Austin, TX, United States of America, September 12 – 14, 2022; IAG Commission 4 – Positioning and Applications, Potsdam, Germany, September 5 – 8, 2022; and REFAG2022 – Reference Frames for Applications in Geosciences, Thessaloniki, Greece, October 17 – 20, 2022. Two of these three conferences were planned for 2020 or 2021, but had to be postponed due to the COVID19 pandemic. They therefore became an important opportunity for the global geodesy community to rebuild professional networks and to resume face-to-face interaction. Scientists from around the world were delighted to once again gather together to present their research progress and findings, and discuss scientific issues.

Note: GGHS2022: Gravity Field -- A Comparison of Pointwise and Levelling Assisted Regional Realisations of IHRS With a Case Study Over Sweden -- New Tidal Analysis of Superconducting Gravimeter Records at Metsähovi, Finland -- Development of the National Gravimetric Geoid Model for the Kingdom of Saudi Arabia -- Comparisons of Absolute Gravimeters as a Key Component of the International Terrestrial Gravity Reference Frame (ITGRF) Shown on the Example of the WET-CAG2021 at Wettzell, Germany -- Newly Acquired Gravity Data in Support of the GeoNetGNSS CORS Network in Northern Greece -- Strapdown Airborne Gravimetry Based on Aircrafts and UAVs: Postprocessing Algorithms and New Results -- Estimation of Temporal Variations in the Earth’s Gravity Field Using Novel Optical Clocks Onboard of Low Earth Orbiters -- Hybrid Geoid Modeling for the Kingdom of Saudi Arabia -- IAG Commission 4: Positioning and Applications -- Almost-Instantaneous PPP-RTK Without Atmospheric Corrections -- Multi-GNSS 1 Tomography: Case Study of the July 2021 Flood in Germany -- Quantum Diamond Magnetometry for Navigation in GNSS Denied Environments -- Feasibility of CSAC-Assisted GNSS Receiver Fingerprinting -- On the Impact of GNSS Receiver Settings on the Estimation of Codephase Center Corrections -- Quality Control Methods for Climate Applications of Geodetic Tropospheric Parameters -- REFAG2022: Reference Frames -- Impact of Coordinate- and Tropospheric Ties on the Rigorous Combination of GNSS and VLBI -- How Do Atmospheric Tidal Loading Displacements Vary Temporally as well as Across Different Weather Models? -- Alternative Strategies for the Optimal Combination of GNSS and Classical Geodetic Networks: A Case-study in Greece -- A Concept of Precise VLBI/GNSS Ties with Micro-VLBI -- Status of the SIRGAS Reference Frame: Recent Developments and New Challenges -- A Review of Space Geodetic Technique Seasonal Displacements Based on ITRF2020 Results -- Validation of Reference Frame Consistency of GNSS Service Products -- Intra-Technique Combination of VLBI Intensives and Rapid Data to Improve the Temporal Regularity and Continuity of the UT1-UTC Series -- Automatic Determination of the SLR Reference Point at Côte d’Azur Multi-technique Geodetic Observatory -- The K-band (24 GHz) Celestial Reference Frame Determined from Very Long Baseline Interferometry Sessions Conducted over the Past 20 Years -- VGOS VLBI Intensives Between macgo12m and wettz13s for the Rapid Determination of UT1-UTC -- Correcting Non-tidal Surface Loading in GNSS repro3 and Comparison with ITRF2020 -- Upgrading the Metsähovi Geodetic Research Station -- Assessing the Potential of VLBI Transmitters on Next Generation GNSS Satellites for Geodetic Products -- Potential of Lunar Laser Ranging for the Determination of Earth Orientation Parameters.

Additional Edition: ISBN 3-031-63854-9

Language: English

DOI: 10.1007/978-3-031-63855-8

URL: kostenfrei

UID:

Format: 1 online resource (251 pages)

Edition: 1st ed.

ISBN: 9783031638558

Series Statement: International Association of Geodesy Symposia Series v.156

Content: Intro -- Preface -- Contents -- Part I GGHS2022: Gravity Field -- A Comparison of Pointwise and Levelling Assisted Regional Realisations of IHRS with a Case Study over Sweden -- 1 Introduction -- 1.1 Purpose and Delimitations -- 2 Method -- 2.1 Gravimetric Geoid Model and Ellipsoidal GNSS Heights Used for the Pointwise Realisation -- 2.2 Transformations and Epoch Unification -- 2.3 Height Network Adjustments -- 2.4 Comparisons -- 3 Results -- 4 Discussion -- 5 Conclusions -- References -- New Tidal Analysis of Superconducting Gravimeter Records at Metsahovi,Finland -- 1 Introduction -- 2 Data Processing -- 2.1 Gravity Data -- 2.2 Environmental Data -- 3 Ocean Tide Loading Models -- 4 Tidal Analysis -- 5 Results -- 6 Discussion and Conclusions -- Appendix 1 -- Appendix 2 -- References -- Development of the National Gravimetric Geoid Model for the Kingdom of Saudi Arabia -- 1 Introduction -- 2 Homogenization of Land and Marine Gravity Data -- 3 Geoid Determination with the Remove-Compute-Restore Procedure -- 4 Conclusions -- References -- Comparisons of Absolute Gravimeters as a Key Component of the International Terrestrial Gravity Reference Frame (ITGRF) Shown on the Example of the WET-CAG2021 at Wettzell, Germany -- 1 Introduction -- 2 Absolute Gravity Measurements -- 3 Data Elaboration -- 4 The Geodetic Approach (ICN-Solution) -- 5 The Metrological Approach (KCN-Solution) -- 6 Results and Conclusions -- 7 Outlook -- References -- Newly Acquired Gravity Data in Support of the GeoNetGNSS CORS Network in Northern Greece -- 1 Introduction -- 2 Study Area and Gravity Measurements -- 3 Relative Gravity Data Processing -- 4 Conclusions -- References -- Strapdown Airborne Gravimetry Based on Aircrafts and UAVs: Postprocessing Algorithms and New Results -- 1 Introduction -- 2 Postprocessing Methodology and Algorithms -- 2.1 Key Aspects of the Algorithms.

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Additional Edition: ISBN 9783031638541

Additional Edition: Erscheint auch als Druck-Ausgabe ISBN 9783031638541

Language: English

URL: lizenzpflichtig

UID:

Format: 1 Online-Ressource(XIII, 252 p. 144 illus., 137 illus. in color.)

Edition: 1st ed. 2024.

ISBN: 9783031638558

Series Statement: International Association of Geodesy Symposia 156

Content: GGHS2022: Gravity Field -- A Comparison of Pointwise and Levelling Assisted Regional Realisations of IHRS With a Case Study Over Sweden -- New Tidal Analysis of Superconducting Gravimeter Records at Metsähovi, Finland -- Development of the National Gravimetric Geoid Model for the Kingdom of Saudi Arabia -- Comparisons of Absolute Gravimeters as a Key Component of the International Terrestrial Gravity Reference Frame (ITGRF) Shown on the Example of the WET-CAG2021 at Wettzell, Germany -- Newly Acquired Gravity Data in Support of the GeoNetGNSS CORS Network in Northern Greece -- Strapdown Airborne Gravimetry Based on Aircrafts and UAVs: Postprocessing Algorithms and New Results -- Estimation of Temporal Variations in the Earth’s Gravity Field Using Novel Optical Clocks Onboard of Low Earth Orbiters -- Hybrid Geoid Modeling for the Kingdom of Saudi Arabia -- IAG Commission 4: Positioning and Applications -- Almost-Instantaneous PPP-RTK Without Atmospheric Corrections -- Multi-GNSS 1 Tomography: Case Study of the July 2021 Flood in Germany -- Quantum Diamond Magnetometry for Navigation in GNSS Denied Environments -- Feasibility of CSAC-Assisted GNSS Receiver Fingerprinting -- On the Impact of GNSS Receiver Settings on the Estimation of Codephase Center Corrections -- Quality Control Methods for Climate Applications of Geodetic Tropospheric Parameters -- REFAG2022: Reference Frames -- Impact of Coordinate- and Tropospheric Ties on the Rigorous Combination of GNSS and VLBI -- How Do Atmospheric Tidal Loading Displacements Vary Temporally as well as Across Different Weather Models? -- Alternative Strategies for the Optimal Combination of GNSS and Classical Geodetic Networks: A Case-study in Greece -- A Concept of Precise VLBI/GNSS Ties with Micro-VLBI -- Status of the SIRGAS Reference Frame: Recent Developments and New Challenges -- A Review of Space Geodetic Technique Seasonal Displacements Based on ITRF2020 Results -- Validation of Reference Frame Consistency of GNSS Service Products -- Intra-Technique Combination of VLBI Intensives and Rapid Data to Improve the Temporal Regularity and Continuity of the UT1-UTC Series -- Automatic Determination of the SLR Reference Point at Côte d’Azur Multi-technique Geodetic Observatory -- The K-band (24 GHz) Celestial Reference Frame Determined from Very Long Baseline Interferometry Sessions Conducted over the Past 20 Years -- VGOS VLBI Intensives Between macgo12m and wettz13s for the Rapid Determination of UT1-UTC -- Correcting Non-tidal Surface Loading in GNSS repro3 and Comparison with ITRF2020 -- Upgrading the Metsähovi Geodetic Research Station -- Assessing the Potential of VLBI Transmitters on Next Generation GNSS Satellites for Geodetic Products -- Potential of Lunar Laser Ranging for the Determination of Earth Orientation Parameters.

Content: This open access volume contains a selection of papers presented at three different IAG Symposia held in 2022: GGHS2022 – Gravity, Geoid, and Height Systems 2022, Austin, TX, United States of America, September 12 – 14, 2022; IAG Commission 4 – Positioning and Applications, Potsdam, Germany, September 5 – 8, 2022; and REFAG2022 – Reference Frames for Applications in Geosciences, Thessaloniki, Greece, October 17 – 20, 2022. Two of these three conferences were planned for 2020 or 2021, but had to be postponed due to the COVID19 pandemic. They therefore became an important opportunity for the global geodesy community to rebuild professional networks and to resume face-to-face interaction. Scientists from around the world were delighted to once again gather together to present their research progress and findings, and discuss scientific issues.

Note: Open Access

In: International Association of Geodesy Symposia, 156

Additional Edition: Erscheint auch als Druck-Ausgabe Gravity, Positioning and Reference Frames ISBN 9783031638541

Language: English

DOI: 10.1007/978-3-031-63855-8

URL: kostenfrei

UID:

Format: XIII, 252 p. 144 illus., 137 illus. in color. , online resource.

Edition: 1st ed. 2024.

ISBN: 9783031638558

Series Statement: International Association of Geodesy Symposia, 156

Content: This open access volume contains a selection of papers presented at three different IAG Symposia held in 2022: GGHS2022 - Gravity, Geoid, and Height Systems 2022, Austin, TX, United States of America, September 12 - 14, 2022; IAG Commission 4 - Positioning and Applications, Potsdam, Germany, September 5 - 8, 2022; and REFAG2022 - Reference Frames for Applications in Geosciences, Thessaloniki, Greece, October 17 - 20, 2022. Two of these three conferences were planned for 2020 or 2021, but had to be postponed due to the COVID19 pandemic. They therefore became an important opportunity for the global geodesy community to rebuild professional networks and to resume face-to-face interaction. Scientists from around the world were delighted to once again gather together to present their research progress and findings, and discuss scientific issues.

Note: GGHS2022: Gravity Field -- A Comparison of Pointwise and Levelling Assisted Regional Realisations of IHRS With a Case Study Over Sweden -- New Tidal Analysis of Superconducting Gravimeter Records at Metsähovi, Finland -- Development of the National Gravimetric Geoid Model for the Kingdom of Saudi Arabia -- Comparisons of Absolute Gravimeters as a Key Component of the International Terrestrial Gravity Reference Frame (ITGRF) Shown on the Example of the WET-CAG2021 at Wettzell, Germany -- Newly Acquired Gravity Data in Support of the GeoNetGNSS CORS Network in Northern Greece -- Strapdown Airborne Gravimetry Based on Aircrafts and UAVs: Postprocessing Algorithms and New Results -- Estimation of Temporal Variations in the Earth's Gravity Field Using Novel Optical Clocks Onboard of Low Earth Orbiters -- Hybrid Geoid Modeling for the Kingdom of Saudi Arabia -- IAG Commission 4: Positioning and Applications -- Almost-Instantaneous PPP-RTK Without Atmospheric Corrections -- Multi-GNSS 1 Tomography: Case Study of the July 2021 Flood in Germany -- Quantum Diamond Magnetometry for Navigation in GNSS Denied Environments -- Feasibility of CSAC-Assisted GNSS Receiver Fingerprinting -- On the Impact of GNSS Receiver Settings on the Estimation of Codephase Center Corrections -- Quality Control Methods for Climate Applications of Geodetic Tropospheric Parameters -- REFAG2022: Reference Frames -- Impact of Coordinate- and Tropospheric Ties on the Rigorous Combination of GNSS and VLBI -- How Do Atmospheric Tidal Loading Displacements Vary Temporally as well as Across Different Weather Models? -- Alternative Strategies for the Optimal Combination of GNSS and Classical Geodetic Networks: A Case-study in Greece -- A Concept of Precise VLBI/GNSS Ties with Micro-VLBI -- Status of the SIRGAS Reference Frame: Recent Developments and New Challenges -- A Review of Space Geodetic Technique Seasonal Displacements Based on ITRF2020 Results -- Validation of Reference Frame Consistency of GNSS Service Products -- Intra-Technique Combination of VLBI Intensives and Rapid Data to Improve the Temporal Regularity and Continuity of the UT1-UTC Series -- Automatic Determination of the SLR Reference Point at Côte d'Azur Multi-technique Geodetic Observatory -- The K-band (24 GHz) Celestial Reference Frame Determined from Very Long Baseline Interferometry Sessions Conducted over the Past 20 Years -- VGOS VLBI Intensives Between macgo12m and wettz13s for the Rapid Determination of UT1-UTC -- Correcting Non-tidal Surface Loading in GNSS repro3 and Comparison with ITRF2020 -- Upgrading the Metsähovi Geodetic Research Station -- Assessing the Potential of VLBI Transmitters on Next Generation GNSS Satellites for Geodetic Products -- Potential of Lunar Laser Ranging for the Determination of Earth Orientation Parameters.

In: Springer Nature eBook

Additional Edition: Printed edition: ISBN 9783031638541

Additional Edition: Printed edition: ISBN 9783031638565

Additional Edition: Printed edition: ISBN 9783031638572

Language: English

DOI: 10.1007/978-3-031-63855-8

URL: https://doi.org/10.1007/978-3-031-63855-8

UID:

Format: 1 online resource (251 pages)

Edition: 1st ed.

ISBN: 9783031638558

Series Statement: International Association of Geodesy Symposia Series ; v.156

Note: Intro -- Preface -- Contents -- Part I GGHS2022: Gravity Field -- A Comparison of Pointwise and Levelling Assisted Regional Realisations of IHRS with a Case Study over Sweden -- 1 Introduction -- 1.1 Purpose and Delimitations -- 2 Method -- 2.1 Gravimetric Geoid Model and Ellipsoidal GNSS Heights Used for the Pointwise Realisation -- 2.2 Transformations and Epoch Unification -- 2.3 Height Network Adjustments -- 2.4 Comparisons -- 3 Results -- 4 Discussion -- 5 Conclusions -- References -- New Tidal Analysis of Superconducting Gravimeter Records at Metsahovi,Finland -- 1 Introduction -- 2 Data Processing -- 2.1 Gravity Data -- 2.2 Environmental Data -- 3 Ocean Tide Loading Models -- 4 Tidal Analysis -- 5 Results -- 6 Discussion and Conclusions -- Appendix 1 -- Appendix 2 -- References -- Development of the National Gravimetric Geoid Model for the Kingdom of Saudi Arabia -- 1 Introduction -- 2 Homogenization of Land and Marine Gravity Data -- 3 Geoid Determination with the Remove-Compute-Restore Procedure -- 4 Conclusions -- References -- Comparisons of Absolute Gravimeters as a Key Component of the International Terrestrial Gravity Reference Frame (ITGRF) Shown on the Example of the WET-CAG2021 at Wettzell, Germany -- 1 Introduction -- 2 Absolute Gravity Measurements -- 3 Data Elaboration -- 4 The Geodetic Approach (ICN-Solution) -- 5 The Metrological Approach (KCN-Solution) -- 6 Results and Conclusions -- 7 Outlook -- References -- Newly Acquired Gravity Data in Support of the GeoNetGNSS CORS Network in Northern Greece -- 1 Introduction -- 2 Study Area and Gravity Measurements -- 3 Relative Gravity Data Processing -- 4 Conclusions -- References -- Strapdown Airborne Gravimetry Based on Aircrafts and UAVs: Postprocessing Algorithms and New Results -- 1 Introduction -- 2 Postprocessing Methodology and Algorithms -- 2.1 Key Aspects of the Algorithms. , 3 Numerical Results -- 3.1 Aircraft-Based Survey -- 3.2 UAV-Based Survey -- 4 Conclusions -- References -- Estimation of Temporal Variations in the Earth's Gravity Field Using Novel Optical Clocks Onboard of Low Earth Orbiters -- 1 Introduction -- 2 Temporal Variations of the Earth's Gravity Field from Clock Measurements -- 2.1 Methodology -- 2.2 Setup of Optical Clock Observation Equations for the Estimation of Temporal Gravity Field Variations -- 2.3 Optical Atomic Clock Noise -- 3 Simulation Scenarios for Estimating Mass Variations with Optical Atomic Clocks -- 3.1 Data -- 4 Numerical Results -- 5 Conclusions -- References -- Hybrid Geoid Modeling for the Kingdom of Saudi Arabia -- 1 Introduction -- 2 KSA-Geoid21 Hybrid Geoid Modeling -- 2.1 KSA-Geoid21GASGI Hybrid Geoid Determination -- 3 Conclusions -- References -- Part II IAG Commission 4: Positioning and Applications -- Almost-Instantaneous PPP-RTK Without Atmospheric Corrections -- 1 Introduction -- 2 Multi-GNSS PPP-RTK: Experimental Setup and Formal Analysis -- 3 PPP-RTK with Best Integer-Equivariant Estimation -- 4 Neglecting the Uncertainty of the PPP-RTK Corrections -- 5 Conclusion -- References -- Multi-GNSS Tomography: Case Study of the July 2021 Flood in Germany -- 1 Introduction -- 2 Data and Meteorological Conditions -- 3 Strategy of GNSS Tomography -- 4 Results -- 4.1 Tomography Cross-Section -- 4.2 Comparisons with ICON-D2 -- 4.3 Comparisons with Radiosonde Data -- 4.4 Comparisons with Radio-Occultations -- 5 Conclusions -- References -- Quantum Diamond Magnetometry for Navigation in GNSS DeniedEnvironments -- 1 Introduction -- 2 INS Aiding via Map Matching -- 3 Probabilistic Multiple Hypothesis Map Matching -- 4 Navigation Experiment -- 5 Conclusions -- References -- Feasibility of CSAC-Assisted GNSS Receiver Fingerprinting -- 1 Introduction -- 2 Clock-Derived Features. , 2.1 Allan Deviation (ADEV) -- 2.2 Time Interval Error (TIE) -- 2.3 Correlation Between Time Series -- 3 Feature Extraction -- 3.1 Pre-Processing Procedures -- 3.2 Singular Value Decomposition and Support Vector Machine -- 3.3 Decision Tree -- 3.4 Filtering Method -- 4 Overview on Experiments -- 5 Fingerprinting Results -- 5.1 Static Scenarios -- 5.2 Dynamic Scenarios -- 6 Conclusion -- References -- On the Impact of GNSS Receiver Settings on the Estimation of Codephase Center Corrections -- 1 Introduction -- 2 Theoretical Background -- 2.1 Antenna Calibration at IfE -- 2.2 Tracking Loops of GNSS Receiver -- 3 Analysis of Different Receiver Settings -- 3.1 Practical Experiment -- 3.2 Impact on Time Differenced Single Differences -- 4 Repeatability of Estimated CPC Pattern -- 5 Conclusion -- References -- Quality Control Methods for Climate Applications of Geodetic Tropospheric Parameters -- 1 Introduction -- 2 Climate Normals and the Importance of Long Terms -- 3 Ground-Based GNSS for Meteorology: From Zero to Hero -- 4 Research Questions -- 5 Methodology -- 6 Results: Station ALBH -- 7 Lessons Learned -- References -- Part III REFAG2022: Reference Frames -- Impact of Coordinate- and Tropospheric Ties on the Rigorous Combination of GNSS and VLBI -- 1 Combination of Space Geodetic Techniques -- 2 Dataset and Processing Strategy -- 3 Realisation of Tropospheric Ties -- 4 Optimal Weighting -- 5 Validation of the Optimal Weighting -- 6 Realisation of the Coordinate Ties -- 7 Differences of EOPs to IGS Solution -- 8 Rigorous and Single Technique Solutions -- 9 Summary and Outlook -- References -- How Do Atmospheric Tidal Loading Displacements Vary Temporally as well as Across Different Weather Models? -- 1 Introduction -- 2 Atmospheric and Oceanic Tidal Mass Anomalies -- 3 Tidal Loading Displacements -- 4 Estimation of Partial Tide Modulations. , 5 Conclusions -- References -- Alternative Strategies for the Optimal Combination of GNSS and Classical Geodetic Networks: A Case-Study in Greece -- 1 Introduction -- 2 Combination Strategies -- 2.1 Common Steps of the Alternative Strategies -- 2.2 First Alternative Strategy: Transition from a 2D to a 3D Network Employing Zenith Angles -- 2.3 Second Alternative Strategy: Transition from a 2D to a Quasi-3D Network Through the Zenith Angles -- 3 Case Study -- 4 Conclusions -- References -- Webpages -- A Concept of Precise VLBI/GNSS Ties with Micro-VLBI -- 1 Introduction -- 2 A Microwave Technique for VLBI/GNSS Tie Measurements -- 3 Early Results -- 4 Discussion -- 5 Summary -- References -- Status of the SIRGAS Reference Frame: Recent Developments and NewChallenges -- 1 Introduction -- 2 Main SIRGAS Objectives and International Networking -- 3 Advances in the Physical Reference Frame -- 3.1 Reference Frame for Terrestrial Gravimetry -- 3.2 Recent Improvements in the Modelling of the Geoid -- 3.3 Standardisation of Physical Heights -- 4 Status of the Geometric Reference Frame -- 4.1 Operational and Reprocessed SIRGAS Weekly Station Positions -- 4.2 Combined Tropospheric Zenith Path Delays -- 4.3 SIRGAS2022: The Latest DGFI-TUM Reference Frame Solution for SIRGAS -- 4.4 VEMOS: Overall Velocity Models for the Entire SIRGAS Region -- 5 Final Remarks -- References -- A Review of Space Geodetic Technique Seasonal Displacements Based on ITRF2020 Results -- 1 Introduction -- 2 Input Data -- 2.1 ITRF2020 Seasonal Parameters -- 2.2 Station Selection -- 3 Methodology -- 4 Results -- 5 Discussion -- References -- Validation of Reference Frame Consistency of GNSS Service Products -- 1 Introduction -- 2 Existing Validation Approaches -- 2.1 Coordinate Computation -- 2.2 Physical Quality Control -- 2.3 Circular Quality Control -- 3 New Validation Methods. , 3.1 Grid Check -- 3.2 Systematic Quality Control -- 4 Results -- 4.1 Grid Check for a Cross-Border GNSS Service Provider -- 4.2 Systematic Quality Check for OSR and SSR Based GNSS Service Products -- 4.2.1 Real-Time OSR Service -- 4.2.2 Post-Processing SSR Services -- 5 Outlook -- References -- Intra-Technique Combination of VLBI Intensives and Rapid Data to Improve the Temporal Regularity and Continuity of the UT1-UTC Series -- 1 Introduction -- 2 Data Input and Combination Methodology -- 3 Resulting UT1-UTC Series -- 4 Conclusion and Outlook -- References -- Automatic Determination of the SLR Reference Point at Côte d'Azur Multi-Technique Geodetic Observatory -- 1 Introduction -- 2 Measuring Devices -- 2.1 Methodology -- 2.2 Elevation Axis Measuring Devices -- 2.3 Azimuth Axis Measuring Devices -- 3 Automation and First Measurement Tests -- 4 Conclusion -- References -- The K-Band (24 GHz) Celestial Reference Frame Determined from Very Long Baseline Interferometry Sessions Conducted Over the Past 20 Years -- 1 Introduction -- 2 Data and Solution Setup -- 2.1 Data Description -- 2.2 Setup of Solutions -- 3 Results -- 3.1 Defining Sources -- 3.2 Ionospheric Mapping Function -- 3.3 Systematic in Elevation Angles -- 4 Conclusion -- References -- VGOS VLBI Intensives Between macgo12m and wettz13s for the Rapid Determination of UT1-UTC -- 1 Introduction -- 2 Methods -- 3 Data -- 4 Results -- 5 Summary -- References -- Correcting Non-Tidal Surface Loading in GNSS repro3 and Comparison with ITRF2020 -- 1 Introduction -- 2 GNSS Processing and Loading Corrections -- 3 Corrections at the Solution Level -- 4 Corrections at the Observation Level -- 5 Summary and Conclusions -- References -- Upgrading the Metsähovi Geodetic Research Station -- 1 Introduction and History -- 2 Renewal of Major Instruments -- 2.1 SLR -- 2.2 VGOS -- 2.3 GNSS -- 2.4 DORIS. , 2.5 Gravity Instruments.

Additional Edition: Print version: Freymueller, Jeffrey T. Gravity, Positioning and Reference Frames Cham : Springer International Publishing AG,c2024 ISBN 9783031638541

Language: English

Keywords: Electronic books.

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UID:

Format: xiii, 252 Seiten , Illustrationen

ISBN: 9783031638541

Series Statement: International Association of Geodesy Symposia 156

In: International Association of Geodesy symposia, 156

Additional Edition: Erscheint auch als Online-Ausgabe Gravity, Positioning and Reference Frames ISBN 9783031638558

Language: English