TAG: David B. Zilkoski

Example of PID from Mark Priority List (Image: NGS website)

New feature in OPUS Projects: Using RTN vectors to support 2022 Transformation tool

March 1, 2023

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)

NGS revises NOAA report on working in the modernized NSRS

April 7, 2021

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

NGS releases annual experimental geoid models and gravity interpolation tools

February 3, 2021

Source: Esri ArcGIS GNSS Leveling Web Application

ArcGIS web app incorporates datasets, NGS data layers for surveyors

December 2, 2020

Image: National Geodetic Survey

NGS releases beta tool for obtaining geodetic information

October 7, 2020

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

The expanded role of positioning through advancements in GNSS

September 14, 2020

Figure 2 – Approximate Change Between NAPGD2022 and NGVD 29 Using GPS on BMs Data (units = cm). (Image: National Geodetic Survey)

NGS releases modernized National Spatial Reference System updates

August 5, 2020

David B. Zilkoski

Number of trained US geodesists at crisis level

July 20, 2020