Sensitivity of an idealized subtropical gyre to the eastern boundary conditions

I. Láiz; P. Sangrà; J. L. Pelegrí; A. Marrero-Díaz

doi:10.3989/scimar.2001.65s1187

Sensitivity of an idealized subtropical gyre to the eastern boundary conditions

Authors

I. Láiz Departamento de Física, Facultad de Ciencias del Mar, Universidad de Las Palmas de Gran Canaria
P. Sangrà Departamento de Física, Facultad de Ciencias del Mar, Universidad de Las Palmas de Gran Canaria
J. L. Pelegrí Departamento de Física, Facultad de Ciencias del Mar, Universidad de Las Palmas de Gran Canaria
A. Marrero-Díaz Departamento de Física, Facultad de Ciencias del Mar, Universidad de Las Palmas de Gran Canaria

DOI:

https://doi.org/10.3989/scimar.2001.65s1187

Keywords:

numerical modelling, subtropical gyre, eastern boundary conditions, Canary Current

Abstract

The flow pattern of the North Atlantic Subtropical Gyre (NASG) is simulated using a highly idealised one-layer quasi-geostrophic wind-driven model. The novel feature of the model is the specification of the eastern boundary conditions. This is an upwelling favourable region with a quasi-permanent southward flowing coastal jet, which is fed by the eastern branch of the Canary Current. The corresponding boundary conditions are non-zero normal flux and constant potential vorticity, the latter being consistent with the generation of anticyclonic vorticity by the coastal jet. We examine the sensitivity of the model to the eastern boundary conditions and compare the results with recent observations for the region.

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Published

2001-07-30

How to Cite

Láiz I, Sangrà P, Pelegrí JL, Marrero-Díaz A. Sensitivity of an idealized subtropical gyre to the eastern boundary conditions. Sci. mar. [Internet]. 2001Jul.30 [cited 2025May2];65(S1):187-94. Available from: https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/714

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Issue

Vol. 65 No. S1 (2001)

Section

Articles

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