Tag Archives: NAVD88
2022
The NGS discusses the upcoming national spatial reference framework modernization. Reference framework shift happens. The National Geodetic Survey (NGS)—the federal steward of the National Spatial Reference Framework (NSRS)—is planning a major (if not fundamental) update of the framework. This pending update is common knowledge among geodetic, surveying, and other geospatial communities. Among the information circulating...
Subsidence
Do you know where your control really is? Editor’s note: The earth moves, even if we do not want it to – or we do not perceive that it does. If you are surveyor working in any part of the country your work will be subject to some degree of subsidence or deformation – be...
