Numerical Results for Correction Terms Used in the Solution of the Geodetic Boundary Value Problem

Numerical Results for Correction Terms Used in the Solution of the Geodetic Boundary Value Problem PDF Author: David Russell Robinson
Publisher:
ISBN:
Category : Boundary value problems
Languages : en
Pages : 270

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Numerical Results for Correction Terms Used in the Solution of the Geodetic Boundary Value Problem

Numerical Results for Correction Terms Used in the Solution of the Geodetic Boundary Value Problem PDF Author: David Russell Robinson
Publisher:
ISBN:
Category : Boundary value problems
Languages : en
Pages : 270

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Geodetic Boundary Value Problem: the Equivalence between Molodensky’s and Helmert’s Solutions

Geodetic Boundary Value Problem: the Equivalence between Molodensky’s and Helmert’s Solutions PDF Author: Fernando Sansò
Publisher: Springer
ISBN: 3319463586
Category : Science
Languages : en
Pages : 83

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Book Description
This book offers a new approach to interpreting the geodetic boundary value problem, successfully obtaining the solutions of the Molodensky and Stokes boundary value problems (BVPs) with the help of downward continuation (DC) based methods. Although DC is known to be an improperly posed operation, classical methods seem to provide numerically sensible results, and therefore it can be concluded that such classical methods must in fact be manifestations of different, mathematically sound approaches. Here, the authors first prove the equivalence of Molodensky’s and Stoke's approaches with Helmert’s reduction in terms of both BVP formulation and BVP solutions by means of the DC method. They then go on to show that this is not merely a downward continuation operation, and provide more rigorous interpretations of the DC approach as a change of boundary approach and as a pseudo BVP solution approach.

Geodetic Boundary Value Problem

Geodetic Boundary Value Problem PDF Author: Fernando Sansò
Publisher:
ISBN: 9783319463599
Category : Physical geography
Languages : en
Pages : 81

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Two Fortran IV Computer Programs for the General Combination of Satellite and Gravity Data for Position and Gravity Field Determinations

Two Fortran IV Computer Programs for the General Combination of Satellite and Gravity Data for Position and Gravity Field Determinations PDF Author: Dean Charles Merchant
Publisher:
ISBN:
Category : Aerial photogrammetry
Languages : en
Pages : 612

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Geodetic Boundary Value Problems in View of the One Centimeter Geoid

Geodetic Boundary Value Problems in View of the One Centimeter Geoid PDF Author: Fernando Sansò
Publisher: Springer
ISBN:
Category : Mathematics
Languages : en
Pages : 620

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Book Description
The precise determination of the figure of the earth and its exterior gravitational field requires the solution of the geodetic boundary value problem (GBVP). Recently, a whole series of new measurement techniques has became available, in particular air- and spaceborne methods. They will make its solution much more complete and accurate and will contribute to a better understanding of ocean circulation and of the earth's interior. The book consists of contributions from leading scientists presented at an international summer school. It covers all aspects of the solution of the GBVP, from a mathematical basis via geodetic modeling to its relationship with advanced measurements. It provides three foundations to determine the geoid at a 1-cm precision level.

Model Computations for Different Solutions of the Geodetic Boundary-value Problem

Model Computations for Different Solutions of the Geodetic Boundary-value Problem PDF Author: Karl-Rudolf Koch
Publisher:
ISBN:
Category : Boundary value problems
Languages : en
Pages : 43

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Book Description
To solve the boundary-value problem of physical geodesy, the perturbing potential is usually expressed by the potential of a simple layer. By introducing this expression into the boundary condition, Molodensky's basic integral equation is obtained; the solution of which enables us to compute the perturbing potential and its first derivative. To check the results of this method, Green's formula can be used. After transforming this formula and its derivative by a method, due to Molodensky, a linear integral equation for the disturbing potential is obtained. With the solutions of this integral equation, the first derivative of the disturbing potential can be computed from the transformed derivative of Green's formula. For a model consisting of a cone on a plane the basic integral equation and the integral equation of Green's formula are solved by successive approximation with a computer. The solution of the basic integral equation is also obtained by Molodensky's method. These three solutions are compared for different inclination angles of the surface of the cone. The results agree very well for small inclination angles, but the approximations don't converge for greater inclination angles. The reason has to be sought in the errors of numerical integration, by which the integration over the surface of the model is solved. (Author).

A Window on the Future of Geodesy

A Window on the Future of Geodesy PDF Author: Fernando Sansò
Publisher: Springer Science & Business Media
ISBN: 3540274324
Category : Science
Languages : en
Pages : 625

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Book Description
These proceedings represent the worldwide picture of the state of the art of geodesy. The volume comprehensively covers the most recent results and supplies a good review of the new ideas developing in the field, opening a window to the future of geodesy.

IV Hotine-Marussi Symposium on Mathematical Geodesy

IV Hotine-Marussi Symposium on Mathematical Geodesy PDF Author: Battista Benciolini
Publisher: Springer Science & Business Media
ISBN: 9783540415824
Category : Medical
Languages : en
Pages : 208

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Book Description
Based on the IV Hotine-Marussi Symposium held in Trento, the volume covers three important topics: boundary value problems, satellite geodesy and stochastic methods in geodesy. The first part deals with boundary value problems which are tackled from both the theoretical and the numerical point of view. The part on satellite geodesy deals with the simulation of the GOCE mission, the integration of satellite gradiometry and airborne gravity for gravity-filed recovery, satellite-to-satellite tracking and orbit sensitivity analysis. Various applied and theoretical contributions are devoted to the stochastic methods applied to geodesy. The book presents the state-of-the-art of the main topics in the theoretical and methodological aspects of geodesy.

Geodesy - the Challenge of the 3rd Millennium

Geodesy - the Challenge of the 3rd Millennium PDF Author: Erik Grafarend
Publisher: Springer Science & Business Media
ISBN: 3662052962
Category : Science
Languages : en
Pages : 460

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Book Description
Geodesy as the science which determines the figure of the earth, its orientation in space and its gravity field as well as its temporal changes, produces key elements in describing the kinematics and the dynamics of the deformable body "earth". It contributes in particular to geodynamics and opens the door to decode the complex interactions between components of "the system earth". In the breathtaking development recently a whole arsenal of new terrestrial, airborne as well as satelliteborne measurement techniques for earth sciences have been made available and have broadened the spectrum of measurable earth parameters with an unforeseen accuracy and precision, in particular to resolve the factor time. The book focusses on these topics and gives a state of the art of modern geodesy.

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 328

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