Browsing ELibrary by Subject "EARTH ROTATION"

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CONSTRAINTS ON MANTLE ANELASTICITY FROM GEODETIC OBSERVATIONS, AND IMPLICATIONS FOR THE J2 ANOMALY

Benjamin D.; Wahr J.; Ray R.D.; Egbert G.D.; Desai S.D. (2006)

We use geodetic observations of the Earth to constrain anelasticity in the Earth's mantle at periods between 12 hr and 18.6 yr. The observations include satellite laser ranging (SLR) measurements of 12 hr and 18.6 yr tides ...
EL NINO IMPACT ON POLAR MOTION PREDICTION ERRORS

Kosek W.; McCarthy D.D.; Luzum B.J. (2001)

The polar motion prediction is computed as a least-squares extrapolation of the polar motion data. The least-squares model consists of a Chandler circle with constant or variable amplitude, annual and semiannual ellipses, ...
EXCITATION SOMPI METHOD AND ITS APPLICATION TO AN ANALYSIS OF THE EARTH'S POLAR MOTION

Yokoyama Yu. (2002)

We present a practical excitation Sompi method. The excitation Sompi method is a non-stationary time-series method developed for the analysis of physical phenomena that obey time-invariant linear processes. Hence, the model ...

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