Title: Geometrical Geodesy
Publisher: Springer-Verlag Gmbh Okt 2007
Publication Date: 2007
Book Condition: Neu
Neuware - Surveying a Century Ago As it was based on the principles of geometry and trigonometry, surveying may be may be looked upon as a branch of practical mathematics. Hence, it was necessary that land surveyors and hydrographers should have a fair general knowledge, not only of these subjects, but also of all the subjects comprised by the term mathemat ics. In addition, the knowledge of mathematics required in ordinary chain surveying and levelling was not very extensive but in geodetical work, the highest mathematical ability and great organising power were required for a proper conception and supervision of the operations (Threlfall, 1940). Only small area of a few hundred square kilometres can be accurately mapped and surveyed without a frame work, since no difficulty is encountered because of Earth-curvature. In the past, especially in hydrography due to the type of work, surveying was carried out on the principles of ordinary practice, but in a very rough man ner, rapidity of execution being of paramount importance, the permissible error was sometimes large. The relative positions of the main surface features were obtained by aid of portable instruments, such as sextants and lead lines, tide poles, and logships. Sketching, just like military surveying was often filling in the smaller detail. In contrary, survey works done by the national mapping agencies (NMAs) were of a higher-level, and comprised the delimitation of boundaries as well as topographical surveys. 440 pp. Englisch. Bookseller Inventory # 9783540254492
Synopsis: The book has evolved through the author's 25 years of advising and writing on geodetic methods in which the aspect of learning by doing is stressed, including analyses of quality. Consequently, it covers practical aspects of geometrical geodesy and particulars of fundamental constants, horizontal and vertical datums, geoids, bi-axial ellipsoids and reference systems, units of frequencies and time, conformal projections, similarity transformations and spatial developments in electronic and acoustic positioning frames. The impact of information, communication and parallel computer technology with an ability to store and retrieve huge amounts of data is discussed up to the point where the compilation of relevant data is completely automated using comprehensive analyses on a worldwide distribution network. All Fortran computer subroutines described in the book can also be found on the enclosed CD-ROM, including compiled ready-to-run Fortran programs. A computer of modest capacity can cope with the algorithms.
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