NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Modelling the pole tide and its effect on the earth's rotationThe pole tide is the response of the ocean to incremental centrifugal forces associated with the Chandler wobble. The tide has a potentially important effect on the period and damping of the wobble, but it is at present not well constrained by observations. Here, both analytical and numerical models for the pole tide are constructed. The analytical models consider the tide first in a global ocean and then in an enclosed basin on a beta-plane. The results are found to approach equilibrium linearly with decreasing frequency and inversely with increasing basin depth. The numerical models solve Laplace's tidal equations over the world's oceans using realistic continental boundaries and bottom topography. The results indicate that the effects of non-equilibrium portion of the deep ocean tide on the Chandler wobble period and damping are negligible.
Document ID
19860040631
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Carton, J. A.
(Harvard University Cambridge, MA, United States)
Wahr, J. M.
(Colorado, University; Cooperative Institute for Research in Environmental Science, Boulder, CO, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1986
Publication Information
Publication: Geophysical Journal
Volume: 84
ISSN: 0016-8009
Subject Category
Geophysics
Accession Number
86A25369
Funding Number(s)
CONTRACT_GRANT: NOAA-04-7-022-44017
CONTRACT_GRANT: N00014-84-C-0461
CONTRACT_GRANT: NAS5-27644
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available