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Topic: Geodesy

NOAA surveyors Charles Geoghegan and Benjamin Erickson conducting a geodetic surveying project in Colorado in the summer of 2017. NOAA and the National Institute of Standards and Technology (NIST) are retiring the U.S. survey foot and standardizing to now use the international foot.

A tale of two feet: NOAA moves to more precise positioning

October 7, 2019

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measurements and observations

NOAA surveyors Charles Geoghegan and Benjamin Erickson conducting a geodetic surveying project in Colorado in the summer of 2017. NOAA and the National Institute of Standards and Technology (NIST) are retiring the U.S. survey foot and standardizing to now use the international foot.

A composite satellite image of the Earth at night.

How GPS works: The National Spatial Reference System

April 3, 2018

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A composite satellite image of the Earth at night.

Geodesy is the science of accurately measuring and understanding the Earth's geometric shape, orientation in space, and gravity field.

Podcast: Geodesy, the invisible backbone of navigation

January 19, 2018

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Geodesy is the science of accurately measuring and understanding the Earth's geometric shape, orientation in space, and gravity field.

The GPS on Benchmarks project encourages people to visit the bench mark of their choice, such as the one shown here, collect GPS observations and send the information to NOAA.

Podcast: Find a benchmark? If so, we want to know

March 23, 2017

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The GPS on Benchmarks project encourages people to visit the bench mark of their choice, such as the one shown here, collect GPS observations and send the information to NOAA.

A geodesist on the National Mall looking through a surveying device.

What is geodesy?

March 20, 2017

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A geodesist on the National Mall looking through a surveying device.

NOAA is exploring using unmanned aircraft to more efficiently collect gravity data around the nation.

Flying high to measure gravity: Humans optional

April 25, 2016

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Marine & Aviation

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NOAA is exploring using unmanned aircraft to more efficiently collect gravity data around the nation.

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