Datums and Map Projections for Remote Sensing, GIS, and SurveyingNew methods of acquiring spatial data and the advent of geographic information systems (GIS) for handling and manipulating data mean that we no longer must rely on paper maps from a single source, but can acquire, combine, and customize spatial data as needed. To ensure quality results, however, one must fully understand the diverse coordinate frameworks upon which the data are based. Datums and Map Projections provides clear, accessible explanations of the terminology, relationships, transformations, and computations involved in combining data from different sources. The first half of the book focuses on datums, exploring different coordinate systems and datums, including two- and three-dimensional representations of Earth coordinates and vertical datums. After an overview of the global positioning system (GPS), the author introduces the fundamentals of map projections and examines the different types. He then presents models and procedures for transforming directly between data sets. The final chapter presents case studies of projects that illustrate the types of problems often encountered in practice. Newcomers to the field will welcome this treatment that, instead of detailed mathematics, uses lucid explanations and numerous examples to unravel the complexities of the subject. For more experienced readers, the book is a valuable reference that answers specific questions and imparts a better understanding of transformation operations and principles. Features |
Other editions - View all
Datums and Map Projections for Remote Sensing, GIS, and Surveying Jonathan Iliffe Limited preview - 2000 |
Datums and Map Projections: For Remote Sensing, GIS, and Surveying Jonathan Iliffe No preview available - 2000 |
Common terms and phrases
accuracy affine transformation alternative angle applied Arreton azimuthal projection best estimates Broomlands central meridian centre common points computations conformal projection conic projection control points converting coordinate system correct cylindrical equidistant projection cylindrical projections data sets defined derived determine developable surface distance Dunnose Earth effect ellipsoid equal area projection equation errors example expressed false eastings Figure formulae geodetic coordinates geoid given global gnomonic projection GPS data graticule known Lambert conformal conic latitude least squares longitude map projections matrix necessary observed parameters Ordnance Survey origin orthometric heights overall scaling plane poles possible problem projection coordinates provisional values Queen's Bower reference system region residuals rotation satellite image scale factor distortion scale factor ratio shape shown in Fig similarity transformation situation sphere spherical spheroid standard parallels surface transformation parameters transverse Mercator projection two-dimensional transformation unobserved vector wavelengths Δλ