Geodesy

Geodesy or geodetics is the <a href="/facts/Science/IJoaD7rs">science</a> of measuring and representing the <a href="/facts/Figure_of_the_Earth/z1LvpVgd">geometry</a>, <a href="/facts/Gravity_of_Earth/IXe9Bh8k">gravity</a>, and <a href="/facts/Earth%2527s_rotation/mDbXcKUx">spatial orientation</a> of the <a href="/facts/Earth/HLLmDfj0">Earth</a> in <a href="/facts/Relative_change/RrXmYBmn">temporally varying</a> <a href="/facts/Three-dimensional_space/KAqKWUbS">3D</a>. It is called <a href="/facts/Planetary_geodesy/ocX6rp0d">planetary geodesy</a> when studying other <a href="/facts/Astronomical_body/BCHLa0Q2">astronomical bodies</a>, such as <a href="/facts/Planet/rbPjE6Bx">planets</a> or <a href="/facts/Natural_satellite/AE4KQKbq">circumplanetary systems</a>.
<a href="/facts/Geodynamics/UwbNJ0lx">Geodynamical</a> phenomena, including <a href="/facts/Crust_(geology)/FYG1kP4F">crustal</a> motion, <a href="/facts/Tide/zNstvWPv">tides</a>, and <a href="/facts/Polar_motion/79TCTF3k">polar motion</a>, can be studied by designing global and national <a href="/facts/Geodetic_control_network/2KNrnHmj">control networks</a>, applying <a href="/facts/Space_geodesy/JAVxtfuJ">space geodesy</a> and terrestrial geodetic techniques, and relying on <a href="/facts/Geodetic_datum/blgyh87M">datums</a> and <a href="/facts/Coordinate_system/Mtd0q4SP">coordinate systems</a>.
Geodetic job titles include geodesist and geodetic surveyor.

Geodesy open-in-new

Geodesy