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Development of Comprehensive Geodetic Vertical Datums for the United States Pacific Territories of American Samoa, Guam, and the Northern Marianas

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Abstract:

The importance of establishing accurate heights to support engineering, mapping, and scientific applications is very well recognized. A network of stable, easily accessible survey control points, referred to as bench marks (BMs), is crucial to a wide range of activities, including coastal zone management, floodplain mapping, stormwater and sewer utility management, large-scale engineering projects, hurricane evacuation and recovery planning, and topographic mapping. The official heights reported on a network of BMs are usually defined with respect to a regional, national, or international geodetic datum, such as the North American Vertical Datum of 1988 (NAVD 88). In the United States, the official vertical datums of each region are fundamental components of the National Spatial Reference System (NSRS), which is maintained by the National Geodetic Survey (NGS), an office of the National Ocean Service (NOS), National Oceanic and Atmospheric Administration (NOAA).

Keywords: AMERICAN SAMOA; COASTAL ZONE MANAGEMENT; FLOODPLAIN MAPPING; GEODESY; GUAM; NGS; NORTHERN MARIANAS; NSRS; TOPOGRAPHIC MAPPING; VERTICAL DATUMS

Document Type: Research Article

Publication date: March 1, 2009

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  • Surveying and Land Information Science (SaLIS) is the official publication of the American Association of Geodetic Surveying (AAGS) and the Geographic and Land Information Society (GLIS).

    SaLIS is a scientific journal devoted to reporting research and new work conducted to advance geodetic surveying, land surveying, large-scale mapping, and geographic information systems designed to advance the development and management of the cadastral parcel data layer and other land information applications. SaLIS publishes research articles, technical papers, technical notes, papers on the current state of surveying education, surveying history, book reviews, and current literature reviews. Every four years, the journal publishes the U.S. Report to the International Federation of Surveyors (FIG). The Proceedings of the Surveying Teachers Conference are published bi-annually.

    For information about AAGS visit www.aagsmo.org
    For information about GLIS visit www.g-lis.org

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