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M2 World Ocean tide from tide gauge measurements
Author(s) -
Francis O.,
Mazzega P.
Publication year - 1991
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/91gl01339
Subject(s) - tide gauge , interpolation (computer graphics) , covariance , a priori and a posteriori , ocean tide , inverse , gauge (firearms) , geodesy , inverse problem , geology , harmonic , climatology , oceanography , meteorology , sea level , physics , mathematics , mathematical analysis , statistics , geography , geometry , classical mechanics , motion (physics) , philosophy , epistemology , archaeology , quantum mechanics
An empirical model of the M2 oceanic tide has been computed from the harmonic constants of a subset of deep sea and coastal tide gauge measurements. The optimal interpolation of these data based on “inverse theory” uses a priori covariance functions deduced from a global hydrodynamical model. The inverse solution, produced with its associated error maps and samples of error spectra, is surprisingly good when compared to in situ data and to a hydrodynamical model.
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