@article{fdi:010081598,
  title = {{M}ass, nutrient and oxygen budgets for the northeastern {A}tlantic {O}cean},
  author = {{M}aze, {G}. and {M}ercier, {H}. and {T}hierry, {V}. and {M}emery, {L}aurent and {M}orin, {P}. and {P}erez, {F}. {F}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he northeast {A}tlantic is a key horizontal and vertical crossroads region for the meridional overturning circulation, but basic nutrient and oxygen fluxes are still poorly constrained by observations in the region. {A} surface to bottom northeast {A}tlantic {O}cean budget for mass, nutrients (nitrate and phosphate) and oxygen is determined using an optimization method based on three surveys of the {OVIDE} transect (from {G}reenland to {P}ortugal) completed with the {W}orld {O}cean {A}tlas 2009. {B}udgets are derived for two communicating boxes representing the northeastern {E}uropean basin ({NEEB}) and the {I}rminger {S}ea. {F}or the {NEEB} ({I}rminger) box, it is found that 30% of the mass import (export) across the {OVIDE} section reach (originate from) the {N}ordic {S}eas, while 70% are redistributed between both boxes through the {R}eykjanes {R}idge (9.3 +/- 0.7 x 10(9) kg s(-1)). {N}et biological source/sink terms of nitrate point to both the {I}rminger and {NEEB} boxes as net organic matter production sites (consuming nitrate at a rate of -7.8 +/- 6.5 kmol s(-1) and -8.4 +/- 6.6 kmol s(-1), respectively). {U}sing a standard {R}edfield ratio of {C} : {N} = 106 : 16, nitrate consumption rates indicate that about 40 {T}g{C} yr(-1) of carbon is fixed by organic matter production between the {OVIDE} transect and the {G}reenland-{S}cotland {R}idge. {N}utrient fluxes also induce a net biological production of oxygen of 73 +/- 60 kmol s(-1) and 79 +/- 62 kmol s(-1) in the {I}rminger and {NEEB} boxes, which points to the region as being autotrophic. {T}he abiotic air-sea oxygen flux leads to an oceanic oxygen uptake in the two regions (264 +/- 66 kmol s(-1) in the north and 443 +/- 70 kmol s(-1) in the south). {T}he abiotic flux is partitioned into a mixing and a thermal component. {I}t is found that the {I}rminger {S}ea oceanic oxygen uptake is driven by an air-sea heat flux cooling increasing the ocean surface oxygen solubility. {O}ver the northeastern {E}uropean basin the mixing component is about half the thermal flux, presumably because of the oxygen minimum in the subtropical thermocline.},
  keywords = {{ATLANTIQUE}},
  booktitle = {},
  journal = {{B}iogeosciences},
  volume = {9},
  numero = {10},
  pages = {4099--4113},
  ISSN = {1726-4170},
  year = {2012},
  DOI = {10.5194/bg-9-4099-2012},
  URL = {https://www.documentation.ird.fr/hor/fdi:010081598},
}