Global Gravity Field Modeling From Satellite To Satellite Tracking Data

Author : Majid Naeimi,Jakob Flury
Publisher : Springer
Page : 168 pages
File Size : 42,8 Mb
Release : 2017-02-10
Category : Science
ISBN : 9783319499413

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Global Gravity Field Modeling from Satellite-to-Satellite Tracking Data by Majid Naeimi,Jakob Flury Pdf

This book provides a sound theoretical basis for the the different gravity field recovery methods and the numerics of satellite-to-satellite tracking data. It represents lectures given at the ‘Wilhelm and Else Heraeus Autumn School’ in Bad Honnef, Germany, October 4-9, 2015. The emphasis of the school was on providing a sound theoretical basis for the different gravity field recovery methods and the numerics of data analysis. The approaches covered here are the variational equations (classical approach), the acceleration approach and the energy balance approach, all of which are used for global gravity field recovery on the basis of satellite observations. The theory of parameter estimation in satellite gravimetry and concepts for orbit determination are also included. The book guides readers through a broad range of topics in satellite gravimetry, supplemented by the necessary theoretical background and numerical examples. While it provides a comprehensive overview for those readers who are already familiar with satellite gravity data processing, it also offers an essential reference guide for graduate and undergraduate students interested in this field.

Author : Xianglin Liu
Publisher : Netherlands Geodetic Commission
Page : 252 pages
File Size : 45,5 Mb
Release : 2008
Category : Artificial satellites in remote sensing
ISBN : STANFORD:36105132318432

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Global Gravity Field Recovery from Satellite-to-satellite Tracking Data with the Acceleration Approach by Xianglin Liu Pdf

Contents Abstract xi Samenvatting xv Curriculum vitae xix Acknowledgements xxii 1. Introduction 1 2. Gravity field modeling from SST data: an overview 9 3. Gravity field modeling from CHAMP data 53 4. Gravity field modeling from GRACE hl-SST data 81 5. Gravity field modeling from GRACE ll-SST data 91 6. Analysis of results obtained from the 3RC approach 133 7. Summary, conclusions and recommendations 203 Bibliography 209 A. Autocorrelation 223 B. Gaussian Filtering 225

Author : Radboud Koop
Publisher : Unknown
Page : 231 pages
File Size : 43,9 Mb
Release : 1993
Category : Gravity
ISBN : 9061322464

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Global Gravity Field Modelling Using Satellite Gravity Gradiometry by Radboud Koop Pdf

Author : Richard H. Rapp,Anny A. Cazenave,R.S. Nerem
Publisher : Springer Science & Business Media
Page : 274 pages
File Size : 43,6 Mb
Release : 2012-12-06
Category : Science
ISBN : 9783642611407

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Global Gravity Field and Its Temporal Variations by Richard H. Rapp,Anny A. Cazenave,R.S. Nerem Pdf

In July 1995 the XXI General Assembly of the International Union of Geodesy and Geophysics was held in Boulder, Colorado. At this meeting the International Association of Geodesy (lAG) organized a number of symposia to discuss scientific developments and future directions in a number of areas. One of these symposia was G3, Global Gravity Field and Its Temporal Variations. This symposium consisted of four invited and 36 contributed papers. The contributed papers were given as oral or poster presentations. This proceedings volume represents the written contributions of the four invited papers (appearing as the first four papers in the volume) and 19 additional papers. The authors were asked to limit the length of their paper to approximately ten pages, which, in some cases, did limit what an author wanted to say. The papers in this volume have been placed in the same order as they were presented at the ruGG meeting. A key theme of the symposium is given in the paper by Nerem, Klosko, and Pavlis where they discuss applications of gravity field information in geodesy and oceanography. The significant achievements in determining the gravity field in the ocean areas from satellite altimeter data is discussed by Sandwell, Yale, McAdoo, and Smith. A review of time changes of the Earth's gravity field from terrestrial measurements is given by Lambert et aI. , and from satellite perturbation techniques by Eanes and Bettadpur. A description of new geopotential models is given in the paper by Tapley et al.

Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 55,6 Mb
Release : 2003
Category : Global Positioning System
ISBN : OCLC:55943925

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Efficient Global Gravity Field Determination from Satellite-to-satellite Tracking by Anonim Pdf

Abstract: By the middle of this decade, measurements from the CHAMP (CHAllenging of Minisatellite Payload) and GRACE (Gravity Recovery And Climate Experiment) gravity mapping satellite missions are expected to provide a significant improvement in our knowledge of the Earth's mean gravity field and its temporal variation. For this research, new observation equations and efficient inversion method were developed and implemented for determination of the Earth2s global gravity field using satellite measurements. On the basis of the energy conservation principle, in situ (on-orbit) disturbing potential and potential difference observations were computed using data from accelerometer- and GPS receiver-equipped satellites, such as CHAMP and GRACE. The efficient iterative inversion method provided the exact estimates as well as an approximate, but very accurate error variance-covariance matrix of the least squares system for both satellite missions. The global disturbing potential observable computed using 16-days of CHAMP data was used to determine a gravity field solution (OSU02A), is commensurate in geoid accuracy to other gravity models and yields improvement in the polar region at wavelengths longer than 800 km. The annual variation of Earth's gravitational field was estimated and compared with other solutions from satellite laser ranging analysis. The annual geoid change of 1 mm would be expected mostly due to atmosphere, continental surface water, and ocean mass redistribution. The correlation between CHAMP and SLR solutions was 0.6 to approx 0.8 with 0.7 mm of RMS difference. Based on the monthly GRACE simulation, the geoid was obtained with an accuracy of a few cm and with a resolution (half wavelength) of 160 km. However, the geoid accuracy can become worse by a factor of 7 because of spatial aliasing. The approximate error covariance was found to be a very good accuracy measure of the estimated coefficients, geoid, and gravity anomaly. The resulting recovered temporal gravity fields have about 0.2 mm errors in terms of geoid height with a resolution of 670 km. It was quantified that how significant the effects due to the inherent modeling errors and temporal aliasing caused by ocean tides, atmosphere, and ground surface water mass are on monthly mean GRACE gravity estimates.

Author : Bruce C. Douglas,Clyde C. Goad,Foster Morrison
Publisher : Unknown
Page : 36 pages
File Size : 55,9 Mb
Release : 1980
Category : Gravity
ISBN : UIUC:30112075636222

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Determination of the Geopotential from Satellite-to-satellite Tracking Data by Bruce C. Douglas,Clyde C. Goad,Foster Morrison Pdf

Author : J. Bouman
Publisher : Unknown
Page : 128 pages
File Size : 45,6 Mb
Release : 2000
Category : Gravitational fields
ISBN : STANFORD:36105029649642

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Quality Assessment of Satellite-based Global Gravity Field Models by J. Bouman Pdf

Author : G. Beutler,M.R. Drinkwater,R. Rummel,Rudolf von Steiger
Publisher : Springer Science & Business Media
Page : 446 pages
File Size : 46,6 Mb
Release : 2013-04-18
Category : Science
ISBN : 9789401713337

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Earth Gravity Field from Space - from Sensors to Earth Sciences by G. Beutler,M.R. Drinkwater,R. Rummel,Rudolf von Steiger Pdf

Volume resulting from an ISSI Workshop, 11-15 March 2002, Bern, Switzerland

Author : Jasper van Loon
Publisher : Unknown
Page : 252 pages
File Size : 49,6 Mb
Release : 2008
Category : Gravitational fields
ISBN : STANFORD:36105132318614

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Functional and Stochastic Modelling of Satellite Gravity Data by Jasper van Loon Pdf

Contents 1. Introduction 1 2. Estimation of the Earth's gravity field 9 3. Augmentation of the functional model 35 4. Stochastic model validation 49 5. Monte Carlo implementation 83 6. Outlier detection and robust estimation 97 7. Application 1: CHAMP satellite gravity data 115 8. Application 2: Joint inversion of global GPS time-series with GRACE gravity models 141 9. Application 3: Temporal aliasing of hydrological signals in a simulated GRACE recovery 165 10. Application 4: The computation of a height reference surface in Switzerland 177 11. Conclusions and recommendations 191 References 197 A. Series expansion into spherical harmonics 217 B. Matrix algebra and matrix analysis 219 C. Some standard distributions 221 Summary 223 Samenvatting 227 Curriculum Vitae 231

Author : Urs Marti
Publisher : Springer
Page : 346 pages
File Size : 52,9 Mb
Release : 2015-01-13
Category : Science
ISBN : 9783319108377

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Gravity, Geoid and Height Systems by Urs Marti Pdf

This volume includes a selection of papers presented at the IAG international symposium "Gravity, Geoid and Height Systems 2012" (GGHS2012), which was organized by IAG Commission 2 “Gravity Field” with the assistance of the International Gravity Field Service (IGFS) and GGOS Theme 1 “Unified Global Height System”. The book summarizes the latest results on gravimetry and gravity networks, global gravity field modeling and applications, future gravity field missions. It provides a detailed compilation on advances in precise local and regional high-resolution geoid modeling, the establishment and unification of vertical reference systems, contributions to gravity field and mass transport modeling as well as articles on the gravity field of planetary bodies.

Author : John L. Junkins
Publisher : Unknown
Page : 214 pages
File Size : 46,9 Mb
Release : 1977
Category : Finite element method
ISBN : UVA:X004155251

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Development of finite element models for the earth's gravity field by John L. Junkins Pdf

As alternatives to lengthy globally valid series representations of the geopotential, piecewise modeling for the gravity field is investigated. A degree 23 spherical harmonic representation is replaced by 1500 local gravity functions within the spherical shell from 1 to 1.2 earth radii. Worst case acceleration errors enter in the 7th significant digit, computational speed is improved by an order of magnitude. (Author).

Author : National Research Council,Division on Earth and Life Studies,Commission on Geosciences, Environment and Resources,Committee on Earth Gravity from Space
Publisher : National Academies Press
Page : 126 pages
File Size : 43,7 Mb
Release : 1997-09-02
Category : Science
ISBN : 9780309174763

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Satellite Gravity and the Geosphere by National Research Council,Division on Earth and Life Studies,Commission on Geosciences, Environment and Resources,Committee on Earth Gravity from Space Pdf

For the past three decades, it has been possible to measure the earth's static gravity from satellites. Such measurements have been used to address many important scientific problems, including the earth's internal structure, and geologically slow processes like mantle convection. In principle, it is possible to resolve the time-varying component of the gravity field by improving the accuracy of satellite gravity measurements. These temporal variations are caused by dynamic processes that change the mass distribution in the earth, oceans, and atmosphere. Acquisition of improved time-varying gravity data would open a new class of important scientific problems to analysis, including crustal motions associated with earthquakes and changes in groundwater levels, ice dynamics, sea-level changes, and atmospheric and oceanic circulation patterns. This book evaluates the potential for using satellite technologies to measure the time-varying component of the gravity field and assess the utility of these data for addressing problems of interest to the earth sciences, natural hazards, and resource communities.

Author : Jeffrey T. Freymueller,Laura Sánchez
Publisher : Springer
Page : 206 pages
File Size : 49,6 Mb
Release : 2019-03-12
Category : Science
ISBN : 9783030129156

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International Symposium on Advancing Geodesy in a Changing World by Jeffrey T. Freymueller,Laura Sánchez Pdf

These proceedings contain 23 papers, which are the peer-reviewed versions of presentations made at the Joint Scientific Assembly of the International Association of Geodesy (IAG) and the International Association of Seismology and Physics of the Earth’s Interior (IASPEI). The assembly was held from 30 July to 4 August 2017 in Kobe, Japan. The scientific assembly included seven symposia organized by IAG, and nine joint symposia, along with additional symposia organized by IASPEI. The IAG symposia were structured according to the four IAG Commissions and the three GGOS Focus Areas, and included reference frames, static and time-variable gravity field, Earth rotation and geodynamics, multi-signal positioning, geodetic remote sensing, and GGOS. The joint symposia included monitoring of the cryosphere, studies of earthquakes, earthquake source processes, and other types of fault slip, geohazard warning systems, deformation of the lithosphere, and seafloor geodesy. Together, the IAG and joint symposia spanned a broad range of work in geodesy and its applications.

Author : J. G. Marsh
Publisher : Unknown
Page : 372 pages
File Size : 50,7 Mb
Release : 1987
Category : Artificial satellites in earth sciences
ISBN : NASA:31769000518269

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An Improved Model of the Earth's Gravitational Field by J. G. Marsh Pdf

GEM-T1 (Goddard Earth Model) a model which has been developed from an analysis of direct satellite tracking observations, is the first in this series of models produced. GEM-T1 is complete to degree and order 36.

Author : Anonim
Publisher : Unknown
Page : 140 pages
File Size : 51,6 Mb
Release : 1995
Category : Space sciences
ISBN : CHI:53471188

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Highlights in Space by Anonim Pdf