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  2. NOAAs National Geodetic Survey (NGS) provides the framework for all positioning activities in the Nation. The foundational elements of latitude, longitude, elevation, and shoreline information impact a wide range of important activities. Process GPS Data (OPUS) NGS Map. Looking for Bench Marks & Datasheets.

    • New Datums

      New Datums - Home [www.ngs.noaa.gov]

    • Spcs

      Spcs - Home [www.ngs.noaa.gov]

    • What We Do

      The mission of the National Geodetic Survey (NGS) is to...

    • Geoid Model Homepage

      Geoid Model Homepage - Home [www.ngs.noaa.gov]

    • Vdatum

      Welcome to VDatum! VDatum is a free software tool being...

  3. Oct 6, 2022 · The National Geodetic Survey Map is an ArcGIS Online Web Map Application that enables users to view multiple datasets provided by the National Geodetic Survey. This Web Map Application presents three NGS datasets to explore with a map.

  4. May 21, 2024 · NGS Coordinate Conversion and Transformation Tool (NCAT) allows users to easily convert between different coordinate systems and/or transform between different reference frames and/or datums, in a single step.

  5. The National Geodetic Survey (NGS) is a United States federal agency based in Washington, D.C. that defines and manages a national coordinate system, providing the foundation for transportation and communication, mapping and charting, and a large number of science and engineering applications.

  6. NGS Facts | NGS INFO - About Us | National Geodetic Survey. The National Geodetic Survey uses terminology that may not be familiar to everyone. View the terms and definitions below to learn more. Science. What is geodesy? What is a datum? What is the geoid? What is tectonic shift? What is subsidence? What is glacial isostatic adjustment?

  7. April 26, 2024. NGS researchers estimated new elevations for many Colorado peaks above 14,000 feet in a new study published in the Journal of Geodesy. Colorado has more than 50 “14ers,” or peaks above 14,000 feet, and they will get shorter when a new national vertical datum is implemented in 2025.

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