NGS Regional Geodetic Advisors. (Image: NGS Website)

Estimating heights with subsidence changes using NGS data and tools

June 2, 2021

This column details the potential effects of crustal movement on published heights in various regions of the United […]

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This article is tagged with crustal deformation, GNSS-derived orthometric heights, National Geodetic Service, NGS, NSRS, orthometric height and posted in Opinions, Survey

Image: National Geodetic Survey

NGS releases beta tool for obtaining geodetic information

October 7, 2020

NGS has developed a new beta tool for obtaining geodetic information about a passive mark in their database. […]

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This article is tagged with David B. Zilkoski, GEOID18, GNSS, GPS on Bench Mark, NAD 83, National Geodetic Survey, NGS, NGS datasheet, orthometric height and posted in Opinions, Survey