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Geoid - Wikipedia


The geoid is the shape that the surface of the oceans would take under the influence of Earth's ... Being an equipotential surface, the geoid is by definition a surface to which the force of gra...

What is the geoid? - NOAA's National Ocean Service


A depiction of the United States geoid. Areas in yellow and orange have a slightly stronger gravity field as a result of the Rocky Mountains. While we often think ...

What is the geoid?


Jan 30, 2001 ... geoid: The equipotential surface of the Earth's gravity field which best ... For example, altimetry is often used to define "mean sea level" in the ...

Geoid | Define Geoid at Dictionary.com


Geoid definition, an imaginary surface that coincides with mean sea level in the ocean and its extension through the continents. See more.

1-Mean Sea Level, GPS, and the Geoid - Esri


However, even the most mathematically sophisticated geoid can only ... By definition, the geoid describes the irregular shape of the earth and is the true zero  ...

FAQ: What do the terms geoid, ellipsoid, spheroid and datum mean ...


May 8, 2016 ... The geoid is defined as the surface of the earth's gravity field, which approximates mean sea level. It is perpendicular to the direction of gravity ...

geoid | geology | Britannica.com


Nov 24, 2015 ... Mathematically speaking, the geoid is an equipotential surface; that is, it is ... Learn how sea level is defined by using variations in Earth's ...

Geoid | Definition of Geoid by Merriam-Webster


the surface within or around the earth that is everywhere normal to the direction of gravity and coincides with mean sea level in the oceans ...

Geoid - definition of geoid by The Free Dictionary


The hypothetical surface of the earth that coincides everywhere with mean sea level. [German, from Greek geoeidēs, earthlike : gē, earth + -oeidēs, -oid.] ...

The Geoid: Why a map of Earth's gravity yields a potato-shaped planet


Apr 1, 2011 ... Then wherever you go, the level would be exactly parallel to the geoid at that place. Yet another equivalent definition: it is a surface that's ...

an imaginary surface that coincides with mean sea level in the ocean and its extension through the continents.
the geometric figure formed by this surface, an ellipsoid flattened at the poles.
Source: Dictionary.com
geoid | Define geoid at Dictionary.com
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