@article{fdi:010061492,
  title = {{N}ineteen-year changes in surface salinity in the {S}outhern {O}cean south of {A}ustralia},
  author = {{M}orrow, {R}. and {K}estenare, {E}lodie},
  editor = {},
  language = {{ENG}},
  abstract = {{A} 19-year time series of underway sea surface salinity ({SSS}) data from the {SURVOSTRAL} line between {H}obart, {A}ustralia and {A}delie {L}and, {A}ntarctica has revealed the distinct patterns of seasonal and interannual variability in two key zones of the {S}outhern {O}cean: in the {S}ubantarctic {Z}one and in the {A}ntarctic {Z}one. {B}oth regions show a weak seasonal freshening of the surface waters over the summer months, with surface waters becoming shallower, warmer and fresher during the summer heating cycle. {I}n the region north of the {S}ubantarctic {F}ront, interannual variations in the summer {SSS} signature are linked to the latitudinal movements of the {S}ubtropical {F}ront. {W}hen this front shifts southward, more high salinity subtropical waters are brought into the domain. {R}ather than responding to local wind stress forcing, the interannual {SSS} variability is strongly linked to southward flow from eastern {T}asmania (the {T}asman outflow), whose decadal variability responds with a 2-3 year delay to remote wind forcing in the {S}outh {P}acific ({H}ill et al., 2008). {O}ver this period, variations in the local surface freshwater forcing make a minor contribution to the {SURVOSTRAL} {SSS} signature. {T}here appears to be a regime shift in the surface forcing and the {SSS} response, before and after the large perturbation in 2001-2002. {I}n the {A}ntarctic {Z}one, the summer {SSS} signature shows distinct biannual variations that are correlated with upstream sea-ice coverage in the preceding spring. {T}here is no significant correlation between local precipitation changes and the {SURVOSTRAL} {SSS} time series. {R}ather, the integrated effects of upstream sea-ice melt dominate the interannual variations in {SSS} at the {SURVOSTRAL} line. {F}inally, a simple 2{D} {L}agrangian particle analysis shows that in some years the surface waters circulate for a longer time in the northern part of the domain, where their freshwater content may be reduced by mixing with the surrounding waters.},
  keywords = {{S}urface salinity ; {S}easonal variations ; {I}nterannual variations ; {S}ea ice ; cover ; {OCEAN} {ANTARCTIQUE}},
  booktitle = {},
  journal = {{J}ournal of {M}arine {S}ystems},
  volume = {129},
  numero = {},
  pages = {472--483},
  ISSN = {0924-7963},
  year = {2014},
  DOI = {10.1016/j.jmarsys.2013.09.011},
  URL = {https://www.documentation.ird.fr/hor/fdi:010061492},
}