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Other

Description:

This web page explains how differences in the gravity at different places on Earth requires GPS receivers use additional corrections to find the true elevation of places on Earth's surface. The method uses the reference ellipsoid surface (a smooth average of sea level) and the reference geoid surface (the actual "bumpy" sea level surface).

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      Keywords:

      NSDL_SetSpec_380601,oai:nsdl.org:2200/20120302191334053T,Geospatial,Geodesy,Geoscience,NSDL

      Language:

      English

      Access Privileges:

      Public - Available to anyone

      License Deed:

      Creative Commons Attribution Non-Commercial Share Alike

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