@article{fdi:010085932,
  title = {{T}he role of wind, mesoscale dynamics, and coastal circulation in the interannual variability of the {S}outh {V}ietnam {U}pwelling, {S}outh {C}hina {S}ea - answers from a high-resolution ocean model},
  author = {{D}uy, {T}. {T}. and {H}errmann, {M}arine and {E}stournel, {C}. and {M}arsaleix, {P}. and {D}uhaut, {T}. and {H}ong, {L}. {B}. and {B}ich, {N}. {T}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {S}outh {V}ietnam {U}pwelling ({SVU}) develops in the {S}outh {C}hina {S}ea ({SCS}) under the influence of southwest monsoon winds. {T}o study the role of small spatiotemporal scales on the {SVU} functioning and variability, a simulation was performed over 2009-2018 with a high-resolution configuration (1 km at the coast) of the {SYMPHONIE} model implemented over the western region of the {SCS}. {I}ts capability to represent ocean dynamics and water masses from daily to interannual scales and from coastal to regional areas is quantitatively demonstrated by comparison with available satellite data and four in situ datasets. {T}he {SVU} interannual variability is examined for the three development areas already known: the southern ({SCU}) and northern ({NCU}) coastal upwelling areas and the offshore upwelling area ({OFU}). {O}ur high-resolution model, together with in situ observations and high-resolution satellite data, moreover shows for the first time that upwelling develops over the {S}unda {S}helf off the {M}ekong {D}elta ({MKU}). {O}ur results confirm for the {SCU} and {OFU} and show for the {MKU} the role of the mean summer intensity of wind and cyclonic circulation over the offshore area in driving the interannual variability of the upwelling intensity. {T}hey further reveal that other factors contribute to {SCU} and {OFU} variability. {F}irst, the intraseasonal wind chronology strengthens (in the case of regular wind peaks occurring throughout the summer for {SCU} or of stronger winds in {J}uly-{A}ugust for {OFU}) or weakens (in the case of intermittent wind peaks for {SCU}) the summer average upwelling intensity. {S}econd, the mesoscale circulation influences this intensity (multiple dipole eddies and associated eastward jets developing along the coast enhance the {SCU} intensity). {T}he {NCU} interannual variability is less driven by the regional-scale wind (with weaker monsoon favoring stronger {NCU}) and more by the mesoscale circulation in the {NCU} area: the {NCU} is prevented (favored) when alongshore (offshore) currents prevail.},
  keywords = {{MER} {DE} {CHINE} ; {SUD} {VIET} {NAM} {COURANT}},
  booktitle = {},
  journal = {{O}cean {S}cience},
  volume = {18},
  numero = {4},
  pages = {1131--1161},
  ISSN = {1812-0784},
  year = {2022},
  DOI = {10.5194/os-18-1131-2022},
  URL = {https://www.documentation.ird.fr/hor/fdi:010085932},
}