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Geoid Determination: Theory and Methods (Lecture Notes in Earth System Sciences)

Editat de Fernando Sansò, Michael G. Sideris
Notă GoodReads:
en Limba Engleză Hardback – 23 Feb 2013
This book explores current techniques for precise determination of the geoid, including computation of the marine geoid from satellite altimetry data. Coverage includes actual computations of local geoids, and incorporates the latest GPS and GIS innovations.
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Specificații

ISBN-13: 9783540746997
ISBN-10: 3540746994
Pagini: 300
Dimensiuni: 155 x 235 x 35 mm
Greutate: 1.54 kg
Ediția: 2013
Editura: Springer Berlin, Heidelberg
Colecția Springer
Seria Lecture Notes in Earth System Sciences

Locul publicării: Berlin, Heidelberg, Germany

Public țintă

Research

Cuprins

Part I: 1. The forward modelling of the gravity field.- 2. Observable of physical geodesy and their analytical representation.- 3. Harmonic calculus and global gravity models.- 4. The local modellling of the gravity field: terrain effects.- 5. The local modelling of the gravity field by collocation.-  Part II: 6. Global gravitational Models.- 7. Geoid determination by 3D least squares collaction.- 8. Mass reductions in geoid modelling.- 9. Marine gravity and geoid from satellite altimetry.- 10. Geoid determination by fast Fourier transform techniques.- 11.- Combination of heights.- Part III: 12. Hilbert spaces and deterministic collacation.- 13. On potential theory and HS of harmonic functions.- 14. A quick look to classical BVP solutions.- 15. The analysis of geodetic boundary value problems (BVP) in linear form.

Textul de pe ultima copertă

Knowledge of the Earth’s gravity field is an essential component for understanding the physical system of the Earth. Inside the masses, the field interacts with many other fields, according to complicated processes of physical and chemical nature; the study of these phenomena is the object of geophysics. Outside the masses, the gravity field smoothes out in agreement with the “harmonic” character of gravitation, while preserving, particularly close to the Earth’s surface, the signature of the internal processes; the study of the gravity field on the boundary and in the external space is the object of physical geodesy. It is necessary to define a separation surface between the masses and the “free” space. This surface is the geoid, an equipotential surface of the gravity field in a stack of such surfaces, close to the surface of the sea. Determining the geoid, or some other surface closer to the Earth's surface, has become synonymous to modelling the gravity field in physical geodesy; this is the subject of this book. Nowadays, this knowledge has become a practical issue also for engineering and other applications, because the geoid is used as a reference surface (datum) of physical heights that is very important in order to relate such heights to purely geometric ones obtained, for example, from GNSS. The methods currently used to produce the geoid at the centimetre level require significant mathematical, stochastic and numerical analysis. The book is structured in such a way as to provide self consistently all the necessary theoretical concepts, from the most elementary ones, such as Newton’s gravitation law, to the most complicated ones dealing with the stability of solutions of boundary value problems. It also provides a full description of the available numerical techniques for precise geoid and quasi-geoid determination. In this way, the book can be used by both students at the undergraduate and graduate level, as well as by researchers engaged in studies in physical geodesy and in geophysics. The text is accompanied by a number of examples, from most elementary to more advanced, as well as by exercises that illustrate the main concepts and computational methods.

Caracteristici

This book uniquely consolidates, unifies and streamlines material, which is not yet covered by the scarce literature on geoid determination
 Of great benefit to graduates and lecturers alike
 Long awaited and comprehensive study