Structure of ocean circulation between the Galápagos Islands and Ecuador
Abstract
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 possible
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 600m 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, 0.33ms−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.
Description
The article of record as published may be located at http://dx.doi.org/10.5194/adgeo-33-3-2013
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.Collections
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