@article{fdi:010092212,
  title = {{W}estern {P}acific warm pool warming and salinity front expansion since 1821 reconstructed from paired coral δ18{O}, {S}r/{C}a, and reconstructed δ18{O}sw},
  author = {{T}odorovic, {S}. and {W}u, {H}. {C}. and {L}insley, {B}. {K}. and {K}uhnert, {H}. and {M}enk{\`e}s, {C}hristophe and {I}sbjakowa, {A}. and {D}issard, {D}elphine},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {S}outhwest {P}acific region is of great importance to global climate variability, but instrumental climate observations before the 1980s lack in numbers and quality. {D}espite efforts in complementing instrumental records with proxy sea surface temperature ({SST}) and sea surface salinity ({SSS}) reconstructions based on coral {S}r/{C}a and delta 18{O}sw records, few of them are longer than a century. {T}his study introduces a northwestern extension to the existing records of {S}outh {P}acific coral study sites with monthly-resolved {S}r/{C}a, delta 18{O}, and delta 18{O}sw reconstructions from {R}otuma dating back to 1821. {A}dditionally, we present new monthly-resolved {S}r/{C}a and reconstructed delta 18{O}sw from a coral from {T}onga dating back to 1848. {R}esults reveal 1.5 degrees {C} warming in the {W}estern {P}acific {W}arm {P}ool, while the adjacent coral from {T}onga shows 1 degrees {C} warming over the twentieth century. {T}he {R}otuma {S}r/{C}a record reveals thermal stress events impacting the {S}r/{C}a-{SST} relationship in the following months. {C}oral delta 18{O}sw results reveal significant freshening of 0.45 {S}p (practical salinity unit) in {T}onga since the early twentieth century, suggesting the southeastward expansion of the {S}outh {P}acific {C}onvergence {Z}one salinity front. {T}he delta 18{O}sw inferred {SSS} provides a valuable extension into the past considering the short and inconsistent instrumental records available. {T}his study demonstrates the utility of coral-based reconstructions in capturing long-term and regional climate variations in the {S}outhwest {P}acific and the necessity of expanding replicated studies to other underrepresented areas to enhance our understanding of regional climate dynamics.},
  keywords = {{SW} {P}acific ; {SPCZ} ; {WPWP} ; stress ; bleaching ; {SST} ; {SSS} ; {P}orites sp ; {PACIFIQUE}},
  booktitle = {},
  journal = {{P}aleoceanography and {P}aleoclimatology},
  volume = {39},
  numero = {12},
  pages = {e2024{PA}004843 [19 p.]},
  ISSN = {2572-4517},
  year = {2024},
  DOI = {10.1029/2024pa004843},
  URL = {https://www.documentation.ird.fr/hor/fdi:010092212},
}