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...
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 ...
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 definition, an imaginary surface that coincides with mean sea level in the
ocean and its extension through the continents. See more.
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
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 ...
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 ...
The hypothetical surface of the earth that coincides everywhere with mean sea
level. [German, from Greek geoeidēs, earthlike : gē, earth + -oeidēs, -oid.] ...
We now define a geop as an equipotential surface on which Wg + Wa is a
constant. The geop that corresponds to mean sea level is called the geoid. In this
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 ...