The geoid (/ ˈdʒiː.ɔɪd / JEE-oyd) is the shape that the ocean surface would take under the influence of the gravity of Earth, including gravitational attraction and Earth's rotation, if other …

The geoid is an imaginary sea level surface that undulates (has a wavy surface) over all of the earth; it isn’t just for the oceanic areas, it also extends through the land masses.

Nov 14, 2025 · GEOIDs are numeric codes that uniquely identify all administrative/legal and statistical geographic areas for which the Census Bureau tabulates data. From Alaska, the …

Geoid, model of Earth’s size and shape that coincides with mean sea level over the oceans and continues in continental areas as an imaginary sea-level surface. It is everywhere …

This irregular shape is called "the geoid," a surface which defines zero elevation. Using complex math and gravity readings on land, surveyors extend this imaginary line through the continents.

The meaning of GEOID is 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.

Apr 11, 2023 · Geoid is an imaginary surface that is used as a reference level for measuring elevations on the Earth’s surface. It is used in physical geography and geodesy to determine …

The geoid is Earth's true shape, defined by gravity. It's not a simple surface, but it's essential for accurately defining heights, converting GPS data to usable elevations, and understanding a …

Jan 30, 2001 · geoid: The equipotential surface of the Earth’s gravity field which best fits, in a least squares sense, global mean sea level. Even though we adopt a definition, that does not …

The geoid is a mathematical model of the Earth in which the geoid surface coincides exactly with the average elevation of the surface of the planet’s oceans. This model surface is extended …