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Seasonal variation in the main tidal constituent from altimetry
Author(s) -
Huess V.,
Andersen O. B.
Publication year - 2001
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 - 10.1029/2000gl011921
Subject(s) - barotropic fluid , tide gauge , submarine pipeline , variation (astronomy) , seasonality , altimeter , oceanography , climatology , environmental science , geology , internal tide , sea level , geodesy , internal wave , physics , statistics , mathematics , astrophysics
The existence of seasonal variations in the main tidal constituents has been known for a long time from coastal tide gauges. In this paper we extend the amount of observations from the relatively limited number of coastal tide gauge observations to also include the large amount of offshore information that have become available from altimetry. These observations are compared with results from a hydrodynamical model applied for the north‐west European shelf. The model clearly identifies the seasonal variation in the M 2 constituent as a shallow water effect with a large part of the variation explained as a barotropic signal having high dependency on the meteorological field over the area.