Articles | Volume 13, issue 15
https://doi.org/10.5194/bg-13-4389-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/bg-13-4389-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
08 Aug 2016
Research article |
| 08 Aug 2016
Seasonal variability of the oxygen minimum zone off Peru in a high-resolution regional coupled model
Oscar Vergara
CORRESPONDING AUTHOR
Laboratoire d'Études en Géophysique et Océanographie
Spatiales, CNRS/IRD/CNES/UPS, UMR5566, Toulouse, France
Boris Dewitte
Laboratoire d'Études en Géophysique et Océanographie
Spatiales, CNRS/IRD/CNES/UPS, UMR5566, Toulouse, France
Departamento de Biología, Facultad de Ciencias del Mar,
Universidad Católica del Norte, Coquimbo, Chile
Millennium Nucleus for Ecology and Sustainable Management of Oceanic
Islands (ESMOI), Coquimbo, Chile
Centro de Estudios Avanzado en Zonas Áridas (CEAZA), Coquimbo,
Chile
Ivonne Montes
Instituto Geofísico del Perú (IGP), Lima, Perú
Veronique Garçon
Laboratoire d'Études en Géophysique et Océanographie
Spatiales, CNRS/IRD/CNES/UPS, UMR5566, Toulouse, France
Marcel Ramos
Departamento de Biología, Facultad de Ciencias del Mar,
Universidad Católica del Norte, Coquimbo, Chile
Millennium Nucleus for Ecology and Sustainable Management of Oceanic
Islands (ESMOI), Coquimbo, Chile
Centro de Estudios Avanzado en Zonas Áridas (CEAZA), Coquimbo,
Chile
Aurélien Paulmier
Laboratoire d'Études en Géophysique et Océanographie
Spatiales, CNRS/IRD/CNES/UPS, UMR5566, Toulouse, France
Oscar Pizarro
Department of Geophysics, University of Concepción, Concepción, Chile
Millennium Institute of Oceanography, University of Concepción, Concepción, Chile
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Short summary
The Southeast Pacific hosts one of the most extensive oxygen minimum zone (OMZ), yet the dynamics behind it remain unveiled. We use a high-resolution coupled physical–biogeochemical model to document the seasonal cycle of dissolved oxygen within the OMZ in both the coastal zone and the offshore ocean. The OMZ seasonal variability is driven by the seasonal fluctuations of the dissolved oxygen eddy flux, with a peak in Austral winter (fall) at the northern (southern) boundary and near the coast.
The Southeast Pacific hosts one of the most extensive oxygen minimum zone (OMZ), yet the...
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