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TAG: National Spatial Reference System

Image: Dave Zilkoski

The effects of vertical movement on NGS’s modernized 2022 NSRS

April 6, 2022

This newsletter will address estimates of vertical movement that will have to be accounted for in the new, modernized National Spatial Reference System.


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Figure 10 from NOAA Technical Report NOS NGS 67 — Diagram of fictional case study location. The arrows correspond to hypothetical rates of ground subsidence. (Image: NGS)

NGS revises NOAA report on working in the modernized NSRS

April 7, 2021

The National Geodetic Survey (NGS) has revised an important technical document on the modernized National Spatial Reference System […]


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Figure 2 – Approximate Change Between NAPGD2022 and NGVD 29 Using GPS on BMs Data (units = cm). (Image: National Geodetic Survey)

NGS releases modernized National Spatial Reference System updates

August 5, 2020

The National Geodetic Survey (NGS) recently announced two new items related to the modernized National Spatial Reference System […]


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Source: GPS World

Surveyors’ coordinate systems for 2022 and beyond

May 3, 2017

Time. Ask anyone what time means to them, and they will give you a different answer. Benjamin Franklin […]


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Source: GPS World

Research Online: GPS UTC anomaly, spatial reference system access

April 26, 2017

Impact of January 2016 GPS UTC Anomaly By Charles Curry / Presented at ION ITM, January 2017 On […]


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Image: GPS World

Leica Geosystems SmartNet Adjusted to National Spatial Reference System

October 19, 2012

On September 29, North America’s largest real-time GNSS network, Leica Geosystems’ SmartNet, became the first network to adopt […]


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