Determination of the geoid : present and future
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Bibliographic Information
Determination of the geoid : present and future
（International Association of Geodesy symposia, symposium 106）
Springer-Verlag, 1991
- : us
- : gw
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Includes bibliographical references and index
Description and Table of Contents
- Volume
-
: us ISBN 9780387974705
Description
Rapid growth of geodetic information provided by the Global Positioning System (GPS) and stringent requirements for a precise geoid in ocean areas for ocean circulation models have spurred interest in geoid studies. As a result, the International Geoid Commission was formed to provide a focus for this important geoid research. Determination of the Geoid: Present and Future is the result of the first meeting of the Commission, held at the Instituto di Topografia, Fotogrammetria e Geofisica at the Politecnico di Milano, June 1990. Six major topics are presented: Global Geopotential Models: Present and Future; Role of Topography in Geoid Computations; the Geoid and the Global Positioning System; the State of Computation of National or Regional Geoids; Software and Data Improvements for Geoid Computations; and Recent Developments in the GEOMED (Determination of the Geoid in the Mediterranean) Project.
Table of Contents
Welcome Address.- Global Geopotential Models: Present and Future.- OSU89A/B Potential Coefficient Models.- The Aliasing Effect in Coefficients Estimation.- Grim-4: A New Global Earth Gravity Model (Status Report).- Geoid Recovery at 0.5 Degree Resolution from Global Satellite Gradiometry Data Sets.- Compact Approximation of the Geoid Height on the Base of Modified High Resolution Global Geopotential Models.- An Improved Method to the Earth's Potential Coefficients Estimation.- The Role of Topography in Geoid Computations: The Marine Geoid.- Review of Geoid Prediction Methods in Mountainous Regions.- Estimation of the Gravity Field and Sea Surface Heights from Heterogeneous Data in the Central Mediterranean.- Altimetry Based Geoid Determination at the German Processing and Archiving Facility Within the ERS-1 Project.- The Determination of Oceanic Geoid Using Modified Hotine Integral.- A Strategy for Gross-Error Detection in Satellite Altimeter Data Applied in the Baltic-Sea Area for Enhanced Geoid and Gravity Determination.- Altimetry Rank Deficiency in Crossover Adjustment.- Practical Considerations in the Use of FFT Methods for Computing Terrain Effects.- Regularization by Digital Topography and by Estimating Crustal Parameters from Gravity Field Data: Example of Switzerland.- The Geoid and GPS.- Estimation of the Disturbing Potential Components and Comparison with GPS and Astrogeodetic Data.- GPS Control of the 1989 Gravimetric Quasigeoid for the Federal Republic of Germany.- Orthometric Heights Using GPS in Canada.- Determination of the Regional Geoid from Simulated GPS Measurements by the Aristoteles Solid-Earth Satellite.- Gravimetric and Astrogeodetic Measurements at GPS Locations in Karakorum.- GPS and Spirit Leveling Measurements in NE Italy.- State of Computation of National or Regional Geoids.- Comparison of Geopotential Models in the Region of Hungary.- Test Computations for a Local Quasigeoid in Hungary Using FFT.- Derivation of the Most Reliable Geoid in the Area of Japan and Some Comments on the Variability of Sea Surface Topography.- ITALGEO '90: Progress Report June '90.- New Gravimetric Geoid for Canada: the "UNB '90" Solution.- The Swiss Geoid Computation: A Status Report.- Estimation Models of Geoid in Nigeria Using Doppler Satellite Observations.- A New High-Resolution Geoid of the Nordic Area.- Geoid Evaluation in Australia: Status and Problems.- Free-Air Gravity Anomalies in Kenya.- Efforts Towards a Preliminary Gravimetric Geoid Computations in Poland Area.- The Gravimetric Geoid in Spain: First Results.- Finland: National Report.- Possible Improvements of the Existing European Geoid.- Theoretical Improvements in the Determination of the Geoid.- Nonspherical Boundary Value Problem by Pseudodifferential Operators.- A Global Geoid Computation by a Solution of the Bipotential Equation.- The Geoid and Its Computation from the Gravimetric Boundary Value Problem.- Some Integral Formulas for a Non-Spherical Earth.- Coerciveness and Geometry in the Linear Gravimetric Boundary Value Problem: Reduced Version.- Holes in Boundary and Out-of-Boundary Data.- The Boundary Equation Approach to the Geoid.- The Geoid, Green's Functions and the Gravimetric Boundary Value Problem for the Spheroid Earth.- Correlation of Strain Representations of the Potential Anomalies with the Geoid.- On the Joint Use of Seismic and Gradiometric Data in Identifying Density Anomalies.- Software and Data Improvement for Geoid Computations.- A New Direct Solution of the Transformation Problem of Cartesian into Ellipsoidal Coordinates.- Stokes Formula Using Fast Fourier Techniques.- Simulation of Regional Gravity Field Recovery from Satellite Gravity Gradiometer Data Using Collocation and FFT.- The GEMT1 Variance-Covariance Matrix: Its Characteristics and Applications in Geoid Computations.- Some Accuracy Estimates of Local Geoids.- Numerical Behaviour of Covariance Matrices and Their Influence on Iterative Solution Techniques.- Fast Collocation.- Poster Session.- GEOMED: An International Project for the Determination of the Geoid in the Mediterranean.- Preprocessing of Altimetric and Gravimetric Data in the Mediterranean Area.- Data Collection, Data Validation and Statistics of Geophysically Relevant Data.- GEOMED: Gravimetry Data Validation: Status Report.- Analysis of GEOSAT Altimeter Data.- Use of Point Masses on Optimized Positions for the Approximation of the Gravity Field.- List of Participants.- Author Index.
- Volume
-
: gw ISBN 9783540974703
Description
Rapid growth of geodetic information provided by the Global Positioning System (GPS) and stringent requirements for a precise geoid in ocean areas for ocean circulation models have spurred interest in geoid studies. As a result, the International Geoid Commission was formed to provide a focus for this important research. "Determination of the Geoid: Present and Future" is the result of the first meeting of the Commission, held at the Instituto di Topografia, Fotogrammetria e Geofisica at the Politecnico di Milano, in June 1990. Six major topics are presented, global geopotential models, present and future; the role of topography in geoid computations; the geoid and the global positioning system; the state of computation of national or regional geoids; software and data improvements for geoid computations; and recent developments in the GEOMED (determination of the geoid in the mediterranean) project. This book of proceedings on geodesy, geophysics, geophysical observations, instrumentation and techniques is intended for the use of scientists, libraries and graduate students.
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