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These proceedings contain 25 papers, which are the peer-reviewed versions of presentations made at the 1 st International Workshop on the Quality of Geodetic Observation and Monitoring (QuGOMS´11), held 13 April to 15 April 2011 in Garching, Germany. The papers were drawn from five sessions which reflected the following topic areas: (1) Uncertainty Modeling of Geodetic Data, (2) Theoretical Studies on Combination Strategies and Parameter Estimation, (3) Recursive State-Space Filtering, (4) Sensor Networks and Multi Sensor Systems in Engineering Geodesy, (5) Multi-Mission Approaches With View to Physical Processes in the Earth System.

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Part I Uncertainty modeling of geodetic data.- Modeling Data Quality Using Artificial Neural Networks.- Magic Square of Real Spectral and Time Series Analysis with an Application to Moving Average Processes.- Describing the Quality of Inequality Constrained Estimates.- GNSS Integer Ambiguity Validation Procedures: Sensitivity Analysis.- Optimal Design of Deformation Monitoring Networks Using the Global Optimization Methods.- Part II Theoretical Studies on Combination Strategies and Parameter Estimation.- Towards the Combination of Data Sets from Various Observation Techniques.- On the Weighted Total Least Squares Solutions.- Integration of Observations and Models in a Consistent Least Squares Adjustment Model.- Comparison of Different Combination Strategies Applied for the Computation of Terrestrial Reference Frames and Geodetic Parameter Series.- W-Ratio Test as an Integer Aperture Estimator: Pull-in Regions and Ambiguity Validation Performance.- Performing 3D Similarity Transformation Using the Weighted Total Least-Squares Method.- Comparison of Spatial Analyzer and Different Adjustment Programs. Part III Recursive State-Space Filtering.- State-Space Filtering With Respect to Data Imprecision and Fuzziness.- Unscented Kalman Filter Algorithm with Colored Noise and its Application in Spacecraft Attitude Estimation.- Principles and Comparisons of Various Adaptively Robust Filters with Applications in Geodetic Positioning.- Alternative Nonlinear Filtering Techniques in Geodesy for Dual State and Adaptive Parameter Estimation.- Part IV Sensor Networks and Multi Sensor Systems in Engineering Geodesy.- Parametric Modeling of Static and Dynamic Processes in Engineering Geodesy.- Land subsidence in Mahyar plain, Central Iran, studied using SBAS-InSAR Method.- Recent Impacts of Sensor Network Technology on Engineering Geodesy.- Design of Artificial Neural Networks for Change-Point Detection.- Spatial and Temporal Kinematics of the Inylchek Glacier in Kyrgyzstan Derived From Lands at and ASTER Imagery.- Response Automation in Geodetic Sensor Networks by Means of Bayesian Networks.- Efficiency Optimization of Surveying Processes.- Modeling and Propagation of Quality Parameters in Engineering Geodesy Processes in Civil Engineering.- Part V Multi-Mission Approaches With View to Physical Processes in the Earth System.- Completion of band-limited data sets on the sphere.

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