Terrain analysis and remote sensing

Terrain analysis and remote sensing

117 Zeiss DZ 5 tables. These tables, of course, constitute a very important contribution to " A u t o m a t i o n of the photogrammetric Process" (Ch...

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Zeiss DZ 5 tables. These tables, of course, constitute a very important contribution to " A u t o m a t i o n of the photogrammetric Process" (Chapter XIII, pages 699--722), particularly for large-scale plotting. In general, the important subject of computer-supported stereo-restitution has scarcely been touched. The relevant chapter (Chapter XIII) is almost completely devoted to the Analytical Plotter (pages 703--722). In the chapter on Aerial Cameras (Chapter IV, pages 187--277), a new section on "cameras for use in space" has been included. The old chapter on Radargrammetry (old Chapter XXI) has been dropped completely (probably because since 1975 a separate "Manual of R e m o t e Sensing" has been published). The old chapter " P h o t o g r a m m e t r y in the Space Age" (Chapter XXII, 50 pages) has been completely re-written in "Satellite P h o t o g r a m m e t r y " (Chapter XVII, pages 883--977), an extremely interesting chapter. The least successful chapter, in the opinion of the reviewer, is the t o o thin chapter on "Planning and Executing the Photogrammetric Project" (Chapter VII, pages 367--412). The chapter is largely copied from the previous edition, and treats in particular the planning and execution of the aerial photography. No useful information on the planning of the aerial triangulation parameters is given (to some extent this can be found in pages 502--503 of Chapter IX). The old chapters "Mechanical Methods of Photo-triangulation" (old Chapter IX) and "Analytical P h o t o g r a m m e t r y " (old Chapter X), very rightly have been combined into one new chapter "Aerotriangulation" (Chapter IX, pages 453--518), including a condensed but very informative part on adjustment of aerotriangulation (pages 489--505). As stated above, the Manual contains a wealth of useful, now updated, information. It can be highly r e c o m m e n d e d to every professional photogrammetrist. J. VISSER (Enschede)

Terrain Analysis and Remote Sensing, John R.G. Townshend (Editor). George Allen & Unwin, Ltd., 1981, xiii + 232 pp.~ hardcover: £stg.20.00, US $45; paperback: £stg.9.95, US $22.50. Terrain is, " . . . an area of the Earth's surface which is characterized by a distinctive assemblage of attributes and interlinking processes in space and time of soils and other surface materials, their atmosphere and water, the landforms, vegetation and animal populations, as well as the results of human activity". Terrain analysis, " . . . is the set of activities which leads to the compilation of terrain characteristics or terrain qualities". To the authors, terrain thus includes virtually all that can be viewed by conventional remote sensing procedures plus information that can be gath-

118 ered by inference from surrogates, an approach that makes this b o o k broad in scope as regards the processing of these data. Topics in the first half of the b o o k include theory of terrain analysis, a review of technology for remotely sensing surface information, the gathering of ancillary ground data, auto, mated and other analyses of data collected, and basic aspects of geographic information systems. This is not a c o o k b o o k of specific m e t h o d o l o g y but rather a fairly theoretical presentation of concepts and general methods which the reader can entrain into his own work. In lieu of specificity, the latter part of the b o o k is devoted to several case studies for various geographic purposes from Landsat and other imagery and for sites in Africa, the Middle East, and Asia. The b o o k is the p r o d u c t of a group of geographers at the University of Reading, U.K., w h o have specialized in creating geographic information systems. Chapters are by various members of the group plus outside specialists. But the b o o k is far from being an anthology because a strict organization has been followed and multi-authorship simply comprises a division of labor for achieving very specific instructional goals. Several books dealing with the processing of remotely sensed information recently have been published and this work appears to be the least rigorous of those this writer has viewed. Mathematical models are kept at a minimum and thus an engineering or other strongly technical background is n o t necessary to make it useful. As the authors u n d o u b t e d l y intended, this makes a good t e x t b o o k for a course on the utilization and processing of the immense a m o u n t of information that can be gathered by remote means, a course that logically should follow traditional remote sensing. ROBERT

W. P E A S E (Riverside, Calif.)