Sites around the World Contributed Data (image)

NASA/Goddard Space Flight Center

Caption

Sites around the world (yellow dots) contributed data and serve as "landmarks along a trail" for the newest update to a global standard called the International Terrestrial Reference Frame. Each site conducts precision measurements using at least 1 and up to 4 geodetic techniques.

Credit

Credits: NASA/Earth Observatory/Goddard

Usage Restrictions

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