Beyond 100 : : Proceedings of the IAG General Assembly, Montreal, Canada, July 8-18 2019.

• Superior document: International Association of Geodesy Symposia Series ; v.152
• Author: Freymueller, Jeffrey T.
• TeilnehmendeR: Sánchez, Laura.
• Place / Publishing House: Cham : : Springer International Publishing AG,, 2022.; ©2023.
• Year of Publication: 2022
• Edition: 1st ed.
• Language: English
• Series: International Association of Geodesy Symposia Series
• Physical Description: 1 online resource (276 pages)

Table of Contents

• Intro
• Preface
• Contents
• Part I Reference Systems and Frames
• Towards an International Height Reference Frame Using Clock Networks
• 1 Introduction
• 2 Relativistic Geodesy with Clocks
• 2.1 Relativistic Geodesy
• 2.2 Clock Networks
• 3 A Hybrid Clock Network for the Establishment of IHRF
• 4 Clock Networks for Height System Unification
• 5 Conclusions and Future Perspectives
• References
• Towards the Realization of the International Height Reference Frame (IHRF) in Argentina
• 1 Introduction
• 2 Computation of Potential Values W(P)
• 2.1 Potential Values W(P) Recovered from an Existing Geoid Model
• 2.2 Estimation of Potential Values W(P) with Global Gravity Models
• 3 Data Used
• 3.1 Geoid Model GEOIDE-Ar 16
• 3.2 Gravity Data Around the Proposed IHRF Stations
• 3.3 Standards
• 4 Results and Discussion
• 5 Conclusions and Future Work
• References
• Comparing Vienna CRF solutions to Gaia-CRF2
• 1 Introduction
• 2 Data and Analysis
• 3 Methodology
• 3.1 Outlier Detection
• 4 Results and Discussion
• 5 Conclusions and Outlook
• References
• Co-location of Space Geodetic Techniques: Studies on Intra-Technique Short Baselines
• 1 Introduction
• 2 Multi-Year Analysis of GNSS Short Baselines at Co-location Sites
• 3 Assessment of the VLBI Short Baseline at Wettzell
• 4 Differencing Approaches for SLR Short Baselines
• 4.1 Single-Difference Residuals [2 Telescopes to 1 Satellite]
• 4.2 Single-Difference Residuals [1 Telescope to 2 Satellites]
• 4.3 Double-Difference Residuals
• 5 Conclusions and Outlook
• References
• Status of IGS Reprocessing Activities at GFZ
• 1 Introduction
• 2 Data and Processing
• 2.1 Data Selection
• 2.2 Processing of the First Test Campaign
• 2.3 Updating Models for Repro 3
• 3 Initial Results
• 4 Summary and Outlook
• References.
• A Wavelet-Based Outlier Detection and Noise Component Analysis for GNSS Position Time Series
• 1 Introduction
• 2 Methodology
• 2.1 Dyadic Wavelet Analysis
• 2.2 Outlier Detection in Residual with IQR
• 2.3 Noise Component Estimation Using MINQUE Approach
• 3 Real GNSS Position Time Series Analysis
• 3.1 Signal and Noise Separation
• 3.2 Outlier Detection
• 3.3 Noise Components Estimation
• 4 Conclusions and Remarks
• References
• Part II Gravity Field Modelling
• International Combination Service for Time-Variable Gravity Fields (COST-G)
• 1 Introduction
• 2 COST-G Organization
• 2.1 Central Bureau (CB)
• 2.2 Analysis Centers (ACs)
• 2.3 Partner Analysis Centers (PCs)
• 2.4 Analysis Center Coordinator (ACC)
• 2.5 Validation Center (VC)
• 2.6 Product Evaluation Group (PEG)
• 2.7 Level-3 Product Center (L3C)
• 3 COST-G Workflow
• 3.1 Harmonization of Input Solutions
• 3.2 Quality Control of Input Solutions
• 3.3 Combination of Input Solutions
• 3.4 Validation of Combined Solution
• 3.4.1 Internal Validation
• 3.4.2 External Validation
• 4 Conclusions
• References
• LUH-GRACE2018: A New Time Series of Monthly Gravity Field Solutions from GRACE
• 1 Introduction
• 2 Overview of the Gravity Field Recovery Method
• 3 Data
• 4 Force Modeling
• 5 Numerical Integration
• 6 Parametrization
• 7 GRACE-FO Solutions
• 8 Results and Evaluation
• References
• A Precise Geoid Model for Africa: AFRgeo2019
• 1 Introduction
• 2 The Data
• 2.1 Gravity Data
• 2.2 Digital Height Models
• 2.3 A Short History of Used Data
• 3 Gravity Reduction
• 4 Interpolation Technique
• 5 Geoid Determination
• 6 Geoid Comparison
• 7 Conclusions
• References
• Part III Earth Rotation and Geodynamics
• A First Assessment of the Corrections for the Consistency of the IAU2000 and IAU2006 Precession-Nutation Models
• 1 Introduction.
• 2 Fundamentals and Methodology
• 2.1 Equations of Models
• 3 Methodology
• 4 Results
• 5 Conclusions
• References
• Report of the IAU/IAG Joint Working Group on Theory of Earth Rotation and Validation
• 1 Introduction
• 2 Selected Outcomes
• 3 Conclusion and Outlook
• Conflict of Interest
• References
• Achievements of the First 4 Years of the International Geodynamics and Earth Tide Service (IGETS) 2015-2019
• 1 Introduction
• 2 Observation Network
• 3 Data Products
• 3.1 Level 1
• 3.2 Level 2
• 3.3 Level 3
• 4 Scientific Applications of IGETS Data
• 5 Conclusions
• References
• Inter-Comparison of Ground Gravity and Vertical Height Measurements at Collocated IGETS Stations
• 1 Introduction
• 2 Methodology and Data Processing
• 2.1 Spectral Coherency and Gravity-to-Height Ratio
• 2.2 GNSS Data Processing
• 2.3 SG Data Processing
• 3 Results
• 3.1 Gravity-to-Height Ratio from Surface Loading Computations
• 3.2 Gravity-to-Height Ratio from GNSS and SG Time-Series
• 4 Summary
• References
• Part IV Multi-Signal Positioning, Remote Sensing and Applications
• A Benchmarking Measurement Campaign to Support Ubiquitous Localization in GNSS Denied and Indoor Environments
• 1 Introduction and Objectives
• 2 PNT Application Requirements
• 3 Field Campaign at The Ohio State University
• 3.1 Indoor UWB Localization Results
• 3.2 Wi-Fi Localization Results
• 4 Concluding Remarks and Outlook
• References
• A Method to Correct the Raw Doppler Observations for GNSS Velocity Determination
• 1 Introduction
• 2 Velocity Determination Using GNSS Raw Doppler Observations
• 3 A New Method of Sign Correction for GNSS Raw Doppler Observations
• 3.1 Carrier-Phase-Derived Doppler Observations
• 3.2 Construction of the Sign Correction Function
• 3.3 Correction Method for the GNSS Raw Doppler Observations.
• 4 Experiments and Analysis
• 5 Summary
• References
• Assessment of a GNSS/INS/Wi-Fi Tight-Integration Method Using Support Vector Machine and Extended Kalman Filter
• 1 Introduction
• 2 GNSS/INS Integration Techniques
• 3 Outdoor Wi-Fi Positioning
• 4 Integration Between GNSS, INS and Wi-Fi
• 5 Experiment and Results
• 6 Conclusions
• References
• Enhancing Navigation in Difficult Environments with Low-Cost, Dual-Frequency GNSS PPP and MEMS IMU
• 1 Introduction
• 2 Inertial Navigation System
• 3 GNSS PPP/INS Tightly Coupled Kalman Filter
• 4 Field Test and Results
• 5 Conclusions and Future Work
• References
• Part V Monitoring and Understanding the Dynamic Earth with Geodetic Observations
• Water Depletion and Land Subsidence in Iran Using Gravity, GNSS, InSAR and Precise Levelling Data
• 1 Introduction
• 2 Geodetic and Gravity Data
• 3 Results
• 3.1 Space Gravimetry (GRACE)
• 3.2 Absolute Gravity
• 3.3 Geodetic and InSAR Results
• 4 Discussion
• 5 Conclusion
• References
• Past and Future Sea Level Changes and Land Uplift in the Baltic Sea Seen by Geodetic Observations
• 1 Introduction
• 2 Data and Methods
• 2.1 Geodetic Data
• 2.2 Sea Level Data
• 2.3 Future Scenarios
• 3 Results and Discussion
• 3.1 Geodetic and Sea Level Data
• 3.2 Comparison of Geodetic and Sea Level Trends
• 3.3 Future
• 4 Conclusions
• References
• Estimation of Lesser Antilles Vertical Velocity Fields Using a GNSS-PPP Software Comparison
• 1 Introduction
• 2 Data
• 3 Processing
• 4 Coordinate and Velocity Differences
• 5 Vertical Velocity Results
• 6 Comparison with Existing Solutions
• 7 Discussion
• 8 Conclusion
• References
• Time Variations of the Vertical Component in Some of Japanese GEONET GNSS Sites
• 1 Introduction
• 2 Data
• 3 Result and Discussion
• 3.1 Agricultural Usage of Groundwater.
• 3.2 Groundwater Mining for Natural Gas and Iodine
• 3.3 Groundwater for Snow Melting
• 4 Conclusion
• References
• An Approximate Method to Simulate Post-Seismic Deformations in a Realistic Earth Model
• 1 Introduction
• 2 Complex DLNs in the Laplace Domain
• 3 Real DLNs in the Time Domain via NILT
• 3.1 The Oscillational Integral During NILT
• 3.2 Convergence of the Proposed Method
• 3.3 Verifying Using a Comparison with a Previous Method
• 4 Discussion and Conclusions
• References
• Geodetic Monitoring of the Variable Surface Deformation in Latin America
• 1 Introduction
• 2 Surface-Kinematics Modelling Based on GNSS Multi-Year Solutions
• 3 Existing Velocity Models for SIRGAS (VEMOS)
• 4 Present-Day Deformation Model and Velocity Field for Latin America (VEMOS2017)
• 5 Discussion
• 6 Conclusions and Outlook
• 7 Supplementary Data
• References
• Progress in GTEWS Ground Displacement Measurements and Tsunami Warning
• 1 Introduction
• 2 The Contribution of GNSS
• 3 GTEWS Networks
• 4 GNSS-Aided Models
• 5 A Look into Recommendations
• 6 Discussion
• References
• Part VI Geodesy for Atmospheric and Hydrospheric Climate Research (IAG, IAMAS, IACS, IAPSO)
• Characterization of the Upper Atmosphere from Neutral and Electron Density Observations
• 1 Introduction
• 2 Data and Methods
• 2.1 Ionospheric Observations
• 2.2 Thermospheric Observations
• 2.3 Space Weather and Geomagnetic Indices
• 2.4 PCA Modeling
• 3 Results and Analysis
• 4 Conclusions and Discussion
• References
• Tropospheric Products from High-Level GNSS Processing in Latin America
• 1 Introduction
• 2 Methodology
• 2.1 Estimation of ZTD Values Based on the Operational SIRGAS Processing (ZTDSIR)
• 2.2 ZTDSIR Internal Consistency
• 2.3 ZTDSIR Validation with IGS Tropospheric Products
• 2.4 ZTDSIR Validation with Radiosonde Data.
• 2.5 ZTD Estimation Applying PPP.