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GEOID

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.01 sec.
AcronymDefinition
GEOIDGravity for Earth, Ocean and Ice Dynamics


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A precise knowledge of the geoid is crucial for accurate measurement of ocean circulation and sea-level change, both of which are influenced by climate.
Throughout the water column during each tow, we recorded volume of water filtered, temperature, salinity, depth of the net, length of wire out, and angle of the net mouth relative to the geoid.
That becomes tricky because gravitational theory dictates that the altitude isn't measured relative to average sea level, but to the geoid, a hypothetical surface that approximates the shape and size of Earth.
 
 
 
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