Inertial currents in the southern Gulf of Mexico

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Auteur principal: G Expósito-Díaz
Format: Artículo científico
Langue:en
Publié: Universidad Autónoma de Baja California 2009
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author G Expósito-Díaz
author_facet G Expósito-Díaz
contents Inertial currents in the southern Gulf of Mexico G Expósito-Díaz DA Salas-de León MA Monreal-Gómez D Salas-Monreal F Vázquez-Gutiérrez Ciencias de la Tierra tides Gulf of Mexico Bay of Campeche inertial currents Current velocity data recorded from 1 March to 17 June 1997 at four stations in the Bay of Campeche, southern Gulf of Mexico, were used to describe inertial currents. Data were low-pass filtered using a Lanczos filter, and transformed to the frequency domain with the classical Fast Fourier Transform, rotary spectra, and the Morlet Wavelet Method. The strongest total currents developed in the eastern part of the bay, with a dominant east-west component. The predominant direction of the total current was parallel to the coast. The amplitude of tidal currents was small when compared with subtidal currents. During the sampling period several episodes of inertial currents were observed, some of which corresponded to those predicted by theory. Inertial currents in the lower layer were linked through large phase lags, revealing the baroclinic mode of the inertial currents. Spectral energy was concentrated in the low-frequency bands, corresponding to inertial and subinertial periods. The dominance of spectral energy at low frequencies reveals the influence of mesoscale cyclonic and small-scale anticyclonic eddies in the northeastern Bay of Campeche. These eddies are believed to be the origin of the inertial currents, since the inertial currents observed were unrelated to wind forcing. 2009 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48013181004 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.3 Vol.35
format Artículo científico
id redalyc_48013181004
institution Redalyc
language en
publishDate 2009
publisher Universidad Autónoma de Baja California
spellingShingle Inertial currents in the southern Gulf of Mexico
G Expósito-Díaz
Ciencias de la Tierra
tides
Gulf of Mexico
Bay of Campeche
inertial currents
Inertial currents in the southern Gulf of Mexico G Expósito-Díaz DA Salas-de León MA Monreal-Gómez D Salas-Monreal F Vázquez-Gutiérrez Ciencias de la Tierra tides Gulf of Mexico Bay of Campeche inertial currents Current velocity data recorded from 1 March to 17 June 1997 at four stations in the Bay of Campeche, southern Gulf of Mexico, were used to describe inertial currents. Data were low-pass filtered using a Lanczos filter, and transformed to the frequency domain with the classical Fast Fourier Transform, rotary spectra, and the Morlet Wavelet Method. The strongest total currents developed in the eastern part of the bay, with a dominant east-west component. The predominant direction of the total current was parallel to the coast. The amplitude of tidal currents was small when compared with subtidal currents. During the sampling period several episodes of inertial currents were observed, some of which corresponded to those predicted by theory. Inertial currents in the lower layer were linked through large phase lags, revealing the baroclinic mode of the inertial currents. Spectral energy was concentrated in the low-frequency bands, corresponding to inertial and subinertial periods. The dominance of spectral energy at low frequencies reveals the influence of mesoscale cyclonic and small-scale anticyclonic eddies in the northeastern Bay of Campeche. These eddies are believed to be the origin of the inertial currents, since the inertial currents observed were unrelated to wind forcing. 2009 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48013181004 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.3 Vol.35
title Inertial currents in the southern Gulf of Mexico
topic Ciencias de la Tierra
tides
Gulf of Mexico
Bay of Campeche
inertial currents
url https://www.redalyc.org/articulo.oa?id=48013181004