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Polar motion

Polar motion of the Earth is the motion of the Earth's rotational axis relative to its crust.: 1 This is measured with respect to a reference frame in which the solid Earth is fixed (a so-called Earth-centered, Earth-fixed or ECEF reference frame). This variation is a few meters on the surface of the Earth.

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Polar motion

Nodes46
Edges45
Triples74
Avg. degree1.96
Density0.043478
Components1

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Polar motion

Top relations

related to Further reading · 32
Polar motion → America, An, Bibcode, Cambridge University Press, Centennial, CUP, Dennis, Dick, Earth Rotation, Equatorial Coordinates Archived, Fisher, Historical Overview, International Astronomical Union Colloquium, International Latitude Service, ISSN, May, McCarthy, Munk, National Academy, Occasion
related to Chandler wobble · 13
Polar motion → As, Chandler, Earth, Earth's, Euler, Figure, For, Indeed, It, Moreover, One, The, To
related to Observations · 10
Polar motion → Chandler, Earth, Euler, However, It, Its, Polar, The, The Chandler, This
has cause · 7
Polar motion → Earth's, Greenland, Major, Since, The, These, This
related to Analysis · 5
Polar motion → Chandler, CIO, Conventional International Origin, It, Polar
related to Annual component · 2
Polar motion → The, There
is a · 1
Polar motion → forced motion excited predominantly by atmospheric dynamics
see also · 1
Polar motion → GeodesyInternational Polar Motion ServicePole

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Important terminology

polar motion earth chandler wobble axis earth's frequency observed annual pressure figure maximum years atmospheric amplitude surface nutation free period

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Polar motionis aforced motion excited predominantly by atmospheric dynamics0.90text
very-long-baseline interferometryinstance ofObservationsPolar motion is observed routinely by space geodesy methods0.80text
lunar laser ranginginstance ofObservationsPolar motion is observed routinely by space geodesy methods0.80text
satellite laser ranginginstance ofObservationsPolar motion is observed routinely by space geodesy methods0.80text
Polar motionhas causeThe0.60section
Polar motionhas causeEarth's0.60section
Polar motionhas causeGreenland0.60section
Polar motionhas causeSince0.60section
Polar motionhas causeThis0.60section
Polar motionhas causeMajor0.60section
Polar motionhas causeThese0.60section
Polar motionrelated to AnalysisPolar0.60section

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