Mostrar el registro sencillo del ítem Pizarro‐Koch, Matias Pizarro, Oscar Dewitte, Boris Montes Torres, Ivonne Ramos, Marcel Paulmier, Aurélien Garçon, Véronique 2020-02-28T10:10:40Z 2020-02-28T10:10:40Z 2019-12
dc.identifier.citation Pizarro‐Koch, M., Pizarro, O., Dewitte, B., Montes, I., Ramos, M., Paulmier, A., & Garçon, V. (2019). Seasonal Variability of the Southern Tip of the Oxygen Minimum Zone in the Eastern South Pacific (30°‐38° S): A Modeling Study.==$Journal of Geophysical Research: Oceans, 124$==(12), 8574-8604. es_ES
dc.identifier.govdoc index-oti2018
dc.identifier.issn 2169-9291
dc.description.abstract “We investigate the seasonal variability of the southern tip (30°–38°S) of the eastern South Pacific oxygen minimum zone (OMZ) based on a high horizontal resolution (1/12°) regional coupled physical‐biogeochemical model simulation. The simulation is validated by available in situ observations and the OMZ seasonal variability is documented. The model OMZ, bounded by the contour of 45 μM, occupies a large volume (4.5x104 km3) during the beginning of austral winter and a minimum (3.5x104 km3) at the end of spring, just 1 and 2 months after the southward transport of the Peru‐Chile Undercurrent (PCUC) is maximum and minimum, respectively. We showed that the PCUC significantly impacts the alongshore advection of dissolved oxygen (DO) modulating the OMZ seasonal variability. However, zonal transport of DO by meridionally alternating zonal jets and mesoscale eddy fluxes play also a major role in the seasonal and spatial variability of the OMZ. Consistently, a DO budget analysis reveals a significant contribution of advection terms to the rate of change of DO and the prominence of mesoscale variability within the seasonal cycle of these terms. Biogeochemical processes and horizontal and vertical mixing, associated with subgrid scale processes, play only a secondary role in the OMZ seasonal cycle. Overall, our study illustrates the interplay of mean and (mesoscale) eddy‐induced transports of DO in shaping the OMZ and its seasonal cycle off Central Chile”. es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher American Geophysical Union (AGU) es_ES
dc.rights info:eu-repo/semantics/openAccess es_ES
dc.rights.uri es_ES
dc.source Repositorio institucional - IGP es_ES
dc.subject Oxygen minimum zone es_ES
dc.subject Oxygen budget es_ES
dc.subject Eddy fluxes es_ES
dc.subject Peru‐Chile Undercurrent es_ES
dc.subject Eastern South Pacific es_ES
dc.title Seasonal Variability of the Southern Tip of the Oxygen Minimum Zone in the Eastern South Pacific (30°‐38°S): A Modeling Study es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde Oceanografía, Hidrología, Recursos hídricos es_ES
dc.identifier.journal Journal of Geophysical Research: Oceans es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi 10.1029/2019JC015201 es_ES




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