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National Spatial Reference System: Difference between revisions
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[[File:Corps of Discovery II monument @ Chamberlain.jpg|thumb|A (relatively prominent) survey monument that is part of the NSRS<ref>{{cite web |url=https://www.ngs.noaa.gov/cgi-bin/ds_mark.prl?PidBox=DH4418 | title=NGS Datasheet for marker DH4418 @ Chamberlain, SD}}</ref>]] | [[File:Corps of Discovery II monument @ Chamberlain.jpg|thumb|A (relatively prominent) survey monument that is part of the NSRS<ref>{{cite web |url=https://www.ngs.noaa.gov/cgi-bin/ds_mark.prl?PidBox=DH4418 | title=NGS Datasheet for marker DH4418 @ Chamberlain, SD}}</ref>]] | ||
The '''National Spatial Reference System''' ('''NSRS'''), managed by the [[National Geodetic Survey]] (NGS), is a coordinate system that includes | 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<ref>{{Cite web |last= |first= |title=NGS - NCN Homepage |url=https://geodesy.noaa.gov/CORS/ |access-date=2022-04-19 |website=geodesy.noaa.gov |language=EN-US}}</ref> (a system of Global Positioning System [[Continuously Operating Reference Station]]s), 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]].<ref name=onepager>{{cite web |url=http://www.ngs.noaa.gov/INFO/OnePagers/NSRS.html | title=The National Spatial Reference System |publisher=National Geodetic Survey |accessdate=April 3, 2013}}</ref> | ||
In 2024 or 2025,{{Update needed|date=June 2023}} the NSRS will be modernized with a focus on [[Global Navigation Satellite Systems]] (GNSS) and [[geoid]] use. It will use the following four frames of reference, each representing a [[tectonic plate]]:<ref>{{cite web |title=How to Transition to the United States 2022 National Coordinate System Without Getting Left Behind |url=https://www.unoosa.org/documents/pdf/psa/activities/2019/UN_Fiji_2019/S5-24.pdf|publisher=United Nations Office for Outer Space Affairs}}</ref><ref>{{cite web |url=http://ohiosurveyor.org/wp-content/uploads/2017/05/NOAA_TR_NOS_NGS_0062.pdf | title=NOAA Technical Report NOS NGS 62: Blueprint for 2022, Part 1: Geometric Coordinates |publisher=National Geodetic Survey | last1=Smith | first1=Dru | last2=Roman | first2=Dan | last3=Hilla | first3=Steve |accessdate=July 11, 2018}}</ref> | In 2024 or 2025,{{Update needed|date=June 2023}} the NSRS will be modernized with a focus on [[Global Navigation Satellite Systems]] (GNSS) and [[geoid]] use. It will use the following four frames of reference, each representing a [[tectonic plate]]:<ref>{{cite web |title=How to Transition to the United States 2022 National Coordinate System Without Getting Left Behind |url=https://www.unoosa.org/documents/pdf/psa/activities/2019/UN_Fiji_2019/S5-24.pdf|publisher=United Nations Office for Outer Space Affairs}}</ref><ref>{{cite web |url=http://ohiosurveyor.org/wp-content/uploads/2017/05/NOAA_TR_NOS_NGS_0062.pdf | title=NOAA Technical Report NOS NGS 62: Blueprint for 2022, Part 1: Geometric Coordinates |publisher=National Geodetic Survey | last1=Smith | first1=Dru | last2=Roman | first2=Dan | last3=Hilla | first3=Steve |accessdate=July 11, 2018}}</ref> | ||