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Example of a Large Difference Between Geoid12B and Geoid18 in Western North Carolina (Screenshot: National Geodetic Survey)

How to use the NGS Beta GEOID18 web map

June 5, 2019

This column discusses the results of the National Geodetic Survey (NGS) beta hybrid Geoid18 model and the differences […]

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This article is tagged with Beta Geoid18 Web Map, David Zilkoski, GEOID12B, GEOID18, GPS on BMs program, hybrid geoid model, National Geodetic Survey, NGS and posted in Opinions, Survey