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 National CORS (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. Pre-2022, the system is based on NAD 83 and NAVD 88.[1]

In 2022, the NSRS will be modernized with a focus on GNSS and geoid use. It will use the following four frames of reference, each representing a tectonic plate:[2][3]

  • North American Terrestrial Reference Frame of 2022 (NATRF2022)
  • Pacific Terrestrial Reference Frame of 2022 (PTRF2022)
  • Caribbean Terrestrial Reference Frame of 2022 (CTRF2022)
  • Mariana Terrestrial Reference Frame of 2022 (MTRF2022)

References[]

  1. ^ "The National Spatial Reference System". National Geodetic Survey. Retrieved April 3, 2013.
  2. ^ "How to Transition to the United States 2022 National Coordinate System Without Getting Left Behind" (PDF).
  3. ^ Smith, Dru; Roman, Dan; Hilla, Steve. "NOAA Technical Report NOS NGS 62: Blueprint for 2022, Part 1: Geometric Coordinates" (PDF). National Geodetic Survey. Retrieved July 11, 2018.

External links[]

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