![Figure 27: GRACE Trend over CONUS from UTCSR RL06 Model [mm/yr] (Source: Figure 27 from Technical Report NOS NGS 69)](https://www.gpsworld.com/wp-content/uploads/zilkoski-december-2019-column-image-19-245x187.jpg)
How NGS can implement a time-dependent geopotential datum
December 4, 2019
The National Geodetic Survey (NGS) has published a technical report that describes options for how NGS can implement […]
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The National Geodetic Survey (NGS) has published a technical report that describes options for how NGS can implement […]
A famous quote applies to almost everything in our lives: “There is nothing permanent except change.” This well-known […]
My last column highlighted the next phase of the National Geodetic Survey’s (NGS) GPS on Bench Marks program; […]
In what seems like just yesterday, GPS World published my article in the May 2017 issue of Survey […]
The National Geodetic Survey (NGS) is now developing the 2022 transformation model. Once again, NGS requests the assistance […]
This column discusses the results of the National Geodetic Survey (NGS) beta hybrid Geoid18 model and the differences […]
My last column discussed the preliminary results of NGS’ second Multi-Year CORS Beta Solution of the National CORS. […]
The National Geodetic Survey (NGS) is performing another Multi-Year CORS Solution (MYCS) of the National CORS. This will […]
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