Mechanisms Of Water Exchange At The Platform Edge Of Oceanic Islands
Author(s)
J.L. Pelegri, A. Antoranz, C. Gordo, A. Herndndez-Guerra,
A. Martinez & P. Sangra
Abstract
Mechanisms of water exchange at the
platform edge of oceanic islands
J.L. Pelegri, A. Antoranz, C. Gordo, A. Hernandez-Guerra,
A. Martinez & P. Sangra
Departamento de Fisica, Facultadde Ciencias del Mar,
Universidad de Las Palmas de Gran Canaria, Spain
Abstract
Islands in deep oceanic waters have rather vulnerable ecosystems due both to
the narrowness of their coastal platforms and the presence of very steep
slopes. We examine the different mechanisms capable of exchanging water at
the platform edge of oceanic islands, and conclude that the principal ones are
turbulent transport in the boundary layers generated by intense deep ocean
currents and wind-induced cross-slope transport at selected coastal sites.
1 Introduction
A common acquiescence is that coastal areas in oceanic islands are in good
health because whatever is thrown to the water is carried to the deep ocean by
the currents. The only "evidence" behind this puerile idea, however, is that
xenobiotic compounds are not visibl
Keywords
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