Coordinates are integral building tools for GIS, cartography, surveying and are vital to the many applications we use today such as smart phones, car navigation systems and driverless cars. Basic GIS Coordinates, Third Edition grants readers with a solid understanding of coordinates and coordinate systems and how they operate as well as valuable insight into what causes them to malfunction. This practical and comprehensive guide lays out the foundation of a coordinate system and the implications behind building it as it elaborates on heights, two coordinate systems, and the rectangular system.The previous editions described horizontal and vertical datums such as the North American Datum 1983 (NAD 83) and the North American Vertical Datum 1988 (NAVD 88). Both will be replaced in 2022 or thereabouts. The National Geodetic Survey (NGS) plans to replace NAD83 with a new semi-dynamic terrestrial reference frame for North America and a new vertical datum will replace NAVD88. The foundation of the new vertical datum will be a temporally tracked gravimetric geoid. The interim period is intended to smooth the transition to the new paradigm and this new edition explores the changes and provides assistance in understanding them.

The most comprehensive treatment of key elements of original surveys, and the research required to find them, which is an important issue in retracement surveys that has never been fully explored. It will help surveyors become familiar with the proper identification and requirements and find the appropriate evidence using proper procedures. The most comprehensive treatment of key elements of original surveys and the research required to find original surveys, is an important issue in retracement surveys that has never been fully explored. It emphasizes the importance and the necessity of determining the creation of the title and its sources along with its accompanying survey or location. The case studies included in the book discuss the consequences when investigators do not follow complete research procedures, and act upon less information, even though the law requires otherwise. This is a practical guide for surveyors to become familiar with the proper identification and requirements and find the appropriate evidence using the right procedures. This book is intended for the practicing surveyor and will be useful to the legal profession, historical researchers, federal land departments, and others interested in surveys. Features This is the first book that focuses on identifying original surveys, written by one of the top consultants in the United States, who brings real case examples of both successes and failures Explains land separation techniques when more than one has been used previously. Includes numerous case examples providing context for surveyors and attorneys Discusses the relation between title creation and their transfer Addresses federal versus private surveys, their differences, and similarities

The survey and the transference are the distinctive and operative acts in the transmission of real property and, where they differ from each other, one must of necessity control the other. This book addresses the aforementioned concepts by external explanations in order to understand the discrepancies between them. It also helps to avoid expensive and wasteful litigation over boundaries that were previously not in conflict. The text offers an extensive review of the law for boundary retracement and cites numerous case examples.

Every nation’s past is prologue to its present, and every nation’s story unfolds in its own way. In this book, a native Englishman and long-time resident of the United States, proposes four defining narratives that have helped fashion the nation’s progression toward “becoming America.” • westward expansion, and a fascination for the moving frontier; • hunger for land, reflected in national expansion through nineteenth-century geopolitical acquisitions, and the desire of individual Americans to grab their own piece of territory, leading to the iconic Homestead Act of 1862; • the land-grant college movement, culminating in Justin Morrill’s 1862 landmark legislation, representing a shift away from higher education dominated by religious imperatives to a more secular model, with significant state sponsorship; • the GI Bill of Rights, enacted in 1944 for servicemen and women returning from WW II, and which provided (among other benefits) a free college education for millions of veterans. These four themes are brought together through the uniquely American phenomenon of college football.

Ideally, every tract of land has a description on paper and a physical survey on the ground. When boundary disputes arise, all parties concerned must quickly learn the vocabulary and processes involved with real estate. Written for anyone dealing in real estate transactions, Subdividing the Land: Metes and Bounds and Rectangular Survey Systems prov

Traditional methods for handling spatial data are encumbered by the assumption of separate origins for horizontal and vertical measurements, but modern measurement systems operate in a 3-D spatial environment. The 3-D Global Spatial Data Model: Principles and Applications, Second Edition maintains a new model for handling digital spatial data, the global spatial data model or GSDM. The GSDM preserves the integrity of three-dimensional spatial data while also providing additional benefits such as simpler equations, worldwide standardization, and the ability to track spatial data accuracy with greater specificity and convenience. This second edition expands to new topics that satisfy a growing need in the GIS, professional surveyor, machine control, and Big Data communities while continuing to embrace the earth center fixed coordinate system as the fundamental point of origin of one, two, and three-dimensional data sets. Ideal for both beginner and advanced levels, this book also provides guidance and insight on how to link to the data collected and stored in legacy systems.