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 influences such as …

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.

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 perpendicular to …

Jan 30, 2001 · Scematic diagram showing some of the “level surfaces” of the Earth, including the geoid, and their relation to the Earth’s crust and local mean sea level.

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 height of land …

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.

The geoid is a concept in geology that represents the shape of the Earth's mean sea level across the globe, extending over oceans and under continents. It is not a perfect ellipsoid; rather, it diverges …

Geodesists define the Earth's surface as a surface that closely approximates global mean sea level, but across which gravity is everywhere equal. They refer to this shape as the geoid.

Sep 10, 2024 · The term “geoid” refers to a geophysical approximation of the Earth’s shape, representing how the surface of the Earth would look if it were a liquid, influenced only by gravity and …

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.