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Basic GIS Coordinates, Second Edition
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$94.95$85.46 - Hardback: 200 pages
- Published: April 2010
- ISBN: 978-1-4200923-1-8
- Publisher: CRC Press
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- By Jan Van Sickle.
Coordinates are the foundation of GIS, cartography, and surveying, to name just a few fields. Computers have an astounding capacity for repetition and they possess a superior ability to handle the mathematics behind coordinate manipulation—but they are very bad at interpreting coordinates and coordinate systems.
Basic GIS Coordinates, Second Edition clearly illustrates the basic principles of coordinate systems, covering ellipsoids, datums, and plane coordinates as they are used in GIS and GPS. Keeping in mind that it is ultimately incumbent on humans to ensure the correct use of coordinate systems, this book explains complex topics in a logical progression, presenting them in a way that is neither too complicated nor oversimplified. This new edition of a bestseller expands the material with updates on what has occurred in the field during the past five years, especially in the World Geodetic System and International Terrestrial Reference Frame. It also addresses the upcoming GNSS constellations and coordinate implications.
- Details how to build a coordinate system
- Addresses different methods of leveling, as well as measuring and modeling of height and gravity
- Explores two-coordinate (state-plane, UTM) systems
- Discusses initial points and other aspects of the rectangular system
- Covers the geoid and the concepts of elevation
There are thousands of horizontal geodetic datums and Cartesian coordinate systems currently sanctioned by governments around the world to describe our planet electronically and on paper. Even if a computer has done nothing wrong, coordinate errors can often occur and lead to potentially disastrous miscalculations. This book is a valuable tool to help readers develop an understanding of how coordinate systems work—and how they sometimes don’t.
Table of Contents
Foundation of a Coordinate System
Uncertainty
Datums to the Rescue
Latitude and Longitude
Directions
Polar Coordinates
Summary
Exercises
Explanations and Answers
Building a Coordinate System
Legacy Geodetic Surveying
Ellipsoids
Realization of a Geodetic Datum
Transforming Coordinates
Exercises
Explanations and Answers
Heights
Ellipsoidal Height
Trigonometric Leveling
Spirit Leveling
Sea Level
Evolution of the Vertical Datum
Zero Point
Geoid
Measuring Gravity
Orthometric Correction
Ellipsoidal, Geoidal, and Orthometric Heights
NGS GEOID Models
Dynamic Heights
References
Exercises
Explanations and Answers
Two Coordinate Systems
State Plane Coordinates
UTM Coordinates
Exercises
Explanations and Answers
Rectangular System
Initial Points
Quadrangles
Townships
Sections
Subdivision of Sections
Township Plats
Fractional Lots
Naming Aliquot Parts and CornersReferences
Exercises
Explanations and Answers
Index
Reviews
"… provides a very readable explanation of coordinates and coordinate systems. … an excellent overview of coordinate systems, projections, and methodologies without being either to superficial or too specific."
—Photogrammetric Engineering & Remote Sensing, December 2011
