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 …

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 largest state, to the …

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.

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 height of land …

2 days ago · The Geoid: Definition and Role in Measuring Heights Uncover the Geoid: the fundamental, gravity-defined shape of Earth that converts raw GPS data into accurate, practical sea-level elevations.

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 …

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.