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Tag: heights

Updates on NGS’s published heights in southeast Texas and NGS GPS on Benchmarks program

Updates on NGS’s published heights in southeast Texas and NGS GPS on Benchmarks program

January 6, 2023 | by Admin | 0
First, happy New Year to everyone. As a follow up to my November 2022 column on the geodesy crisis, I’d like to highlight that the National Geospatial Advisory Committee (NGAC) of the Federal Geographic Data Committee (FGDC) just adopted a…
Estimating heights with subsidence changes using NGS data and tools

Estimating heights with subsidence changes using NGS data and tools

June 2, 2021 | by Admin | 0
This column details the potential effects of crustal movement on published heights in various regions of the United States. In my last column (in the April 2021 Survey Scene), I mentioned that the National Geodetic Survey (NGS) announced that it…

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