National Spatial Reference System
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The National Spatial Reference System (NSRS), managed by the National Geodetic Survey (NGS), is a coordinate system that includes latitude, longitude, elevation, and other values. The NSRS consists of a National Shoreline, the NOAA CORS Network[3] (a system of Global Positioning System Continuously Operating Reference Stations), a network of permanently marked points, and a set of models that describe dynamic geophysical processes affecting spatial measurements. The system is based on the datums NAD 83 and NAVD 88.[4]
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The North American-Pacific Geopotential Datum of 2022 (NAPGD2022) is a geodetic datum set produced by the U.S. National Geodetic Survey to improve the National Spatial Reference System (NSRS).[5][6][7] It will replace the North American Datum of 1983 (NAD 83) and the North American Vertical Datum of 1988 (NAVD 88) with a new geometric reference frame and geopotential datum.[8] In association with this release, a new, time-dependent geoid model, GEOID2022, will also be released.[9] The release date for these models was planned for 2022 but they have been delayed.
See also
[edit]References
[edit]Attribution: contains public domain material copied from ngs.noaa.gov
- ^ "News: Lewis & Clark". NGS/NOAA. September 24, 2004. Retrieved November 20, 2025.
- ^ "NGS Datasheet for marker DH4418 @ Chamberlain, SD".
- ^ "NGS - NCN Homepage". geodesy.noaa.gov. Retrieved April 19, 2022.
- ^ "The National Spatial Reference System". National Geodetic Survey. Retrieved April 3, 2013.
- ^ "Updated Implementation Timeline for the Modernized National Spatial Reference System (NSRS)". Federal Register. October 9, 2024. Retrieved November 20, 2024.
- ^ "Delayed Release of Modernized NSRS, New Datums". geodesy.noaa.gov. Retrieved February 1, 2022.
- ^ "Frequently Asked Questions - FAQ - New Datums - National Geodetic Survey". geodesy.noaa.gov. Retrieved February 1, 2022.
- ^ "New Datums - National Geodetic Survey". www.ngs.noaa.gov. Retrieved February 1, 2022.
- ^ "Naming Convention - New Datums - National Geodetic Survey". geodesy.noaa.gov. Retrieved April 16, 2024.
External links
[edit]- Doyle, David R. "Development of The National Spatial Reference System". National Geodetic Survey.
- "United States Geological Survey home page".
- "U.S. National Geodetic Survey home page".
- "Geodetic Glossary". United States National Geodetic Survey.
- "Orthometric Height Conversion tool". United States National Geodetic Survey.
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