Source: Zilkowski

Discussing the new North American-Pacific Geopotential Datum of 2022 — Part 4

December 6, 2017

My last column focused on the National Geodetic Survey’s (NGS) current plans for estimating North American-Pacific Geopotential Datum […]

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This article is tagged with David B. Zilkoski, Geopotential Coordinates, NAPGD2022, National Geodetic Survey, NGS, North American-Pacific Geopotential Datum of 2022 and posted in Opinions, Survey

Source: Zilkoski

Discussing the new North American-Pacific Geopotential Datum of 2022 — Part 2

August 2, 2017

My last column highlighted some of the feedback provided by guest presenters at the NGS’ 2017 Geospatial Summit […]

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This article is tagged with David B. Zilkoski, geoid, GIA, Glacial Isostatic Adjustment, GRAV-D project, NAPGD2022, National Geodetic Survey, NGS, North American-Pacific Geopotential Datum of 2022 and posted in Opinions, Survey

Figure 1 – Approximate Change Between NAPGD2022 and NAVD 88 Using GPS on BMs Data (units = cm). (Image: National Geodetic Survey)

Discussing the new North American-Pacific Geopotential Datum of 2022 — Part 1

June 7, 2017

On April 24-25, 2017, the National Geodetic Survey (NGS) hosted the 2017 Geospatial Summit in Silver Spring, Maryland, […]

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This article is tagged with David B. Zilkoski, NAD 83, National Geodetic Survey, NAVD 88, NGS, North American Datum of 1983, North American Vertical Datum of 1988, North American-Pacific Geopotential Datum of 2022 and posted in Opinions, Survey