Geodesy

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  • geodesy
definition
  • A subdivision of geophysics which includes determination of the size and shape of the earth, the earth's gravitational field, and the location of points fixed to the earth's crust in an earth-referred coordinate system.
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Abstract from DBPedia
    Geodesy (/dʒiˈɒdəsi/ jee-OD-ə-see) is the Earth science of accurately measuring and understanding Earth's figure (geometric shape and size), orientation in space, and gravity. The field also incorporates studies of how these properties change over time and equivalent measurements for other planets (known as planetary geodesy). Geodynamical phenomena, including crustal motion, tides and polar motion, can be studied by designing global and national control networks, applying space geodesy and terrestrial geodetic techniques and relying on datums and coordinate systems.The job title is geodesist or geodetic surveyor.

    測地学（そくちがく、英: geodesy）とは、地球に固定した座標系を仮定し、その座標系を用いて、地球上の任意の点の位置を決定する方法、精度、その背景にある地球力学的な諸問題を扱う分野をいう。

    (Source: http://dbpedia.org/resource/Geodesy)