My Survey Scene columns have focused on procedures and routines for establishing GNSS-derived orthometric heights. My last column focused on analyzing NGS’ GPS on BM data set that is used to make ...

Datums are baseline standards against which we measure geographic location and elevations. They are frequently referenced in state and local codes to ensure a precise, shared understanding of ...

The NOAA-managed National Spatial Reference System (NSRS), the official U.S. government source for precise latitude, longitude and elevation measurements, provides more than $2.4 billion in potential ...

My last column highlighted the next phase of the National Geodetic Survey’s (NGS) GPS on Bench Marks program; that is, the development of the 2022 transformation model. It provided web links to ...

The dangers and risks of operating without a National Geocentric Datum (NGD) in any of the countries of the contemporary world are grievous, to say the least. Geocentric Datum is a computation value ...

Estonia is giving up the Kronstadt Tide Gauge as its main reference point for measuring vertical elevation and altitude, and instead joining the European Vertical Reference System based on the ...