@article{fdi:010042601,
  title = {{I}nterannual hypoxia variability in a coastal upwelling system : ocean-shelf exchange, climate and ecosystem-state implications},
  author = {{M}onteiro, {P}.{M}.{S}. and van der {P}las, {A}. {K}. and {M}{\'e}lice, {J}ean-{L}uc and {F}lorenchie, {P}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n this study we use multi-year time series to examine the dynamic characteristics of coupled physical-biogeochemical processes that modulate interannual coastal hypoxia in the {B}enguela upwelling system in the southeast {A}tlantic. {T}he results confirmed earlier findings on the role of advection to explain much of the seasonal-decadal variability. {T}hese results challenge the predominantly biogeochemical basis, namely benthic-pelagic coupling, to understand the variability of hypoxia and its ecosystem implications. {U}nexpectedly, the results showed that the variability was insensitive to changes in the electron-donating capacity (carbon export fluxes) but strongly dependent on the advected oxygen fluxes. {T}he dynamics of the interaction of equatorial and polar boundary conditions (ocean-shelf exchange) and seasonally phased shelf advection were the key forcing functions that explained hypoxia variability in seasonal-decadal time scales. {T}he vulnerability of the system to climate change lies in the long-term response of the equatorial system that governs seasonal and interannual warming at the {A}ngola-{B}enguela front as well as wind stress in the {L}uderitz southern boundary that governs ventilation. {T}he proposed model was able to explain most of the decadal scale variability of two different ecosystem-state indicators. {T}he model predicts a long-term decline of present ecosystem function with climate change.},
  keywords = {oxygen ; hypoxia ; upwelling ; climate ; benguela ; ecosystem ; {ATLANTIQUE}},
  booktitle = {},
  journal = {{D}eep {S}ea {R}esearch : {P}art {I}.{O}ceanographic {R}esearch {P}apers},
  volume = {55},
  numero = {4},
  pages = {435--450},
  ISSN = {0967-0637},
  year = {2008},
  DOI = {10.1016/j.dsr.2007.12.010},
  URL = {https://www.documentation.ird.fr/hor/fdi:010042601},
}