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(abstract) Effect of Long Period Ocean Tides on the Earth's RotationThe second-degree zonal tide raising potential, which is responsible for tidal changes in the Earth's rotation rate and length-of-day, is symmetric about the polar axis and hence can excite the Earth's polar motion only through its action upon nonaxisymmetric features of the Earth such as the oceans. Ocean tidal excitation of polar motion in the diurnal and semidiurnal tidal bands has been previously detected and extensively examined. Here, the detection of ocean tidal excitation of polar motion in the long-period tidal band, specifically at the Mf' (13.63-day) and Mf (13.66-day) tidal frequencies, is reported.
Document ID
Document Type
Preprint (Draft being sent to journal)
External Source(s)
Gross, R. S.
Chao, B. F.
Desai, S.
Date Acquired
August 23, 2013
Publication Date
October 21, 1996
Distribution Limits
tides oceans diurnal tidal bands Earth's rotation polar motion

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