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Show simple item record Monteiro, Pedro MS Dewitte, B Scranton, MI Paulmier, A Van der Plas, AK 2012-01-09T12:31:07Z 2012-01-09T12:31:07Z 2011
dc.identifier.citation Monteiro, PMS, Dewitte, B et al. 2011. Role of open ocean boundary forcing on seasonal to decadal-scale variability and long-term change of natural shelf hypoxia. Environmental Research Letters, Vol 6(2), pp 18 en_US
dc.identifier.issn 1748-9326
dc.description Copyright: 2011 Institute of Physics en_US
dc.description.abstract In this study the authors investigate the possible reasons for the widespread differences between the seasonal cycles of carbon production and export compared to those of hypoxia in eastern boundary upwelling systems. An idealized model is proposed that qualitatively characterizes the relative roles of physics and biogeochemical fluxes. The model is tested on three contrasting upwelling systems: the Benguela (from relatively aerated to interannual anoxic), the Humboldt (sub-oxic and interannually anoxic) and the Cariaco (permanently anoxic). Overall they propose that shelf hypoxia variability can be explained on the basis of the interaction between ventilation by ocean boundary forcing through ocean–shelf exchange and the role of shelf geometry in the retention of shelf-based particulate organic carbon (POC) fluxes. They aim to identify the hypoxia regimes associated with low ventilation—wide-shelf systems and high ventilation—narrow-shelf systems, considering them as extremes of conditions controlled by the two factors. They propose that this may help to explain differences in the seasonal cycles of the biogeochemical drivers and responses as well as difference between upwelling systems and within individual upwelling systems. It is suggested that when seasonal hypoxia emerges it does so preferentially at a wide-shelf part of a system. en_US
dc.language.iso en en_US
dc.publisher Institute of Physics en_US
dc.relation.ispartofseries Workflow request;7130
dc.subject Natural shelf hypoxia en_US
dc.subject Carbon production en_US
dc.subject Benguela en_US
dc.subject Humboldt en_US
dc.subject Cariaco en_US
dc.subject Biogeochemical fluxes en_US
dc.subject Upwelling systems en_US
dc.subject Oceans en_US
dc.title Role of open ocean boundary forcing on seasonal to decadal-scale variability and long-term change of natural shelf hypoxia en_US
dc.type Article en_US

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