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Structure of ocean circulation between the Galápagos Islands and Ecuador / C. Collins, A. Mascarenhas and R. Martinez.

Por:

Collins, C [autor]

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Tipo de material:

ArtículoIdioma: Inglés Detalles de publicación: 2013.Descripción: : 3-12 pTema(s):

Clasificación CDD:

23 551.462

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En: Advances in Geosciences Vol. 33 (2013), p. 3-12Tema: From 27 March to 5 April 2009, upper ocean velocities between the Galapagos Islands and Ecuador were measured using a vessel mounted ADCP. A region of posible strong cross-hemisphere exchange was observed immediately to the east of the Galapagos, where a shallow (200 m) 300 km wide northeastward surface ﬂow transported 7–11 Sv. Underlying this strong northeastward surface current, a southward ﬂowing undercurrent was observed which was at least 600 m thick, 100 km wide, and had an observed transport of 7–8 Sv. Next to the Ecuador coast, the shallow (<200 m) Ecuador Coastal Current was observed to extend offshore 100 km with strongest ﬂow, 0.33 ms-1, near the surface. Immediately to the west of the Ecuador Coastal Current, ﬂow was directed eastward and southward into the beginnings of the Peru-Chile Countercurrent. The integral of the surface currents between the Galapagos and Ecuador agreed well with observed sea level differences. Although the correlation of the sea level differences with large scale climate indices (Niño3 and the Southern Oscillation Index) was signiﬁcant, more than half of the sea level variability was not explained. Seasonal variability of the sea level difference indicated that sea level was 2 cm higher at the Galapagos during late winter and early spring, which could be associated with the pattern of northward surface ﬂows observed by R/V Knorr.

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Existencias
Imagen de cubierta	Tipo de ítem	Biblioteca actual	Biblioteca de origen	Colección	Ubicación en estantería	Signatura topográfica	Materiales especificados	Info Vol	URL	Copia número	Estado	Notas	Fecha de vencimiento	Código de barras	Reserva de ítems	Prioridad de la cola de reserva de ejemplar	Reservas para cursos
	Documento electrónico	Corley Smith Library Colección PDF		Galápagos		551.462 COL 2013 (Navegar estantería(Abre debajo))					Disponible			2021-1314
	Artículo	Corley Smith Library Artículos		Galápagos		551.462 COL 2013 (Navegar estantería(Abre debajo))					Disponible			2020-0627

From 27 March to 5 April 2009, upper ocean velocities between the Galapagos Islands and Ecuador were measured using a vessel mounted ADCP. A region of posible strong cross-hemisphere exchange was observed immediately to the east of the Galapagos, where a shallow
(200 m) 300 km wide northeastward surface ﬂow transported 7–11 Sv. Underlying this strong northeastward surface current, a southward ﬂowing undercurrent was observed which was at least 600 m thick, 100 km wide, and had an observed transport of 7–8 Sv. Next to the Ecuador coast, the shallow (<200 m) Ecuador Coastal Current was observed to extend offshore 100 km with strongest ﬂow, 0.33 ms-1, near the surface. Immediately to the west of the Ecuador Coastal Current, ﬂow was directed eastward and southward into the beginnings of the Peru-Chile Countercurrent. The integral of the surface currents between the Galapagos and Ecuador agreed well with observed sea level differences. Although the correlation of the sea level differences with
large scale climate indices (Niño3 and the Southern Oscillation Index) was signiﬁcant, more than half of the sea level variability was not explained. Seasonal variability of the sea level difference indicated that sea level was 2 cm higher at the Galapagos during late winter and early spring, which could be associated with the pattern of northward surface ﬂows observed by R/V Knorr.

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