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Lunar tidal acceleration obtained from satellite-derived ocean tide parametersObservation equations for the M2 ocean tide are computed from Geos 3 data for the long periodic variations of the inclination and node of the orbit. M2 ocean tide parameter values C22+ = 3.23 + or - 0.25 cm, epsilon 22+ = 331 + or - 6 deg, and epsilon 42+ = 113 + or - 6 deg are determined. With the assumption of zero solid tide phase lag, the lunar tidal acceleration is mostly (85%) due to the C22+ term in the expansion of the M2 tide with additional small contributions from the O1 and N2 tides. The calculated value for the tidal acceleration in lunar longitude is -27.4 + or - 3 arc sec/sq (100 yr) which is similar to values determined from astronomical data. The mean elements of Geos 3 are presented in tabular form.
Document ID
19780052709
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Goad, C. C.
(National Ocean Survey Rockville, MD, United States)
Douglas, B. C.
(NOAA, National Ocean Survey, Rockville Md., United States)
Date Acquired
August 9, 2013
Publication Date
May 10, 1978
Publication Information
Publication: Journal of Geophysical Research
Volume: 83
Subject Category
Geophysics
Accession Number
78A36618
Distribution Limits
Public
Copyright
Other

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