@article{fdi:010079501,
  title = {{E}rosion of the subsurface salinity maximum of the loop current eddies from glider observations and a numerical model},
  author = {{S}osa-{G}utierrez, {R}. and {P}allas-{S}anz, {E}. and {J}ouanno, {J}ulien and {C}haigneau, {A}lexis and {C}andela, {J}. and {T}enreiro, {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he erosion of the subsurface salinity maximum, signature of the {C}aribbean {S}ubtropical {U}nder{W}ater ({SUW}), within the {L}oop {C}urrent {E}ddy ({LCE}) {P}oseidon ({A}ugust 2016 to {J}uly 2017) in the {G}ulf of {M}exico ({G}o{M}) and the formation of the {G}ulf {C}ommon {W}ater ({GCW}) during its journey westward, was observed using glider data. {M}ost of the dilution of the {SUW} high-salinity core within {P}oseidon occurs during late autumn and winter associated with{N}orthernwinds and mixed-layer deepening. {T}he physical processes that contribute to salt dilution of the {SUW} inside the {LCE}s' core are investigated using a numerical regional model. {T}he analysis of the salt budget in a long-lasting numerical {LCE} and a composite analysis of sixteen {LCE}s reveal that the salinity trend is mostly explained by the vertical salinity diffusion. {C}old and dry{N}orthernwinds during the first winter drive strong negative net heat fluxes that trigger turbulent flux of salt into the {LCE}s' thermostad and dilution of the {SUW} high-salinity core below. {T}he vertical salinity diffusion continues homogenizing the salinity in the upper ocean until the vertical gradient of salinity is negligible. {A}s a result, {SUW} is transformed to precursor of {GCW} that is ultimately diffused to surrounding waters in the western {G}o{M}. {A}lthough the contribution of advection to the salinity trend above the isopycnal of 1,026 kg m(-3)is of second order, below is the most important process driving loss of salinity, presumably due to, eddy-eddy interactions during {LCE}s' westward propagation and eddy pumping (upwelling) during the {LCE}s' decaying phase along the western slope.},
  keywords = {{L}oop {C}urrent {E}ddies ; salt budget ; vertical salinity diffusion ; {N}orthern winds ; negative net heat fluxes ; {C}aribbean {S}ubtropical {U}nder{W}ater ; {ATLANTIQUE} ; {MEXIQUE} {GOLFE}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch : {O}ceans},
  volume = {125},
  numero = {7},
  pages = {e2019{JC}015397 [18 ]},
  ISSN = {2169-9275},
  year = {2020},
  DOI = {10.1029/2019jc015397},
  URL = {https://www.documentation.ird.fr/hor/fdi:010079501},
}