NGS

Screenshot: Get Kids into Survey

December 7, 2022

Geodesy without math equations: Is that possible?

By David B. Zilkoski

June 1, 2022

The effects of geoid changes in NGS’s new, modernized 2022 NSRS

By David B. Zilkoski

Image: Dave Zilkoski

April 6, 2022

The effects of vertical movement on NGS’s modernized 2022 NSRS

By David B. Zilkoski

NGS Regional Geodetic Advisors. (Image: NGS Website)

June 2, 2021

Estimating heights with subsidence changes using NGS data and tools

By David B. Zilkoski

Figure 10 from NOAA Technical Report NOS NGS 67 — Diagram of fictional case study location. The arrows correspond to hypothetical rates of ground subsidence. (Image: NGS)

April 7, 2021

NGS revises NOAA report on working in the modernized NSRS

By David B. Zilkoski

Experimental Geoid Models 2020 (xGEOID20). (Image: NGS)

February 3, 2021

NGS releases annual experimental geoid models and gravity interpolation tools

By David B. Zilkoski

January 6, 2021

The year 2020 and the surveyor: What we learned

Source: Esri ArcGIS GNSS Leveling Web Application

December 2, 2020

ArcGIS web app incorporates datasets, NGS data layers for surveyors

By David B. Zilkoski

Image: National Geodetic Survey

October 7, 2020

NGS releases beta tool for obtaining geodetic information

By David B. Zilkoski

Auto Mining: A driverless Cat 793F CMD truck leaves an iron ore pit. (Photo: Caterpillar)

September 14, 2020

The expanded role of positioning through advancements in GNSS

By David B. Zilkoski

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