@article{fdi:010096317,
  title = {{H}olocene climatic changes in the {K}erguelen archipelago ({S}outh {I}ndian {O}cean) based on marine and lacustrine palaeoclimatic archives},
  author = {{B}ellet, {E}. and {M}{\'e}not, {G}. and {P}iot, {C}. and {C}rosta, {X}. and {G}rossi, {V}. and {S}icre, {M}. {A}. and {M}endez-{M}illan, {M}ercedes and {K}lein, {V}. and {A}nsanay-{A}lex, {S}. and {M}akou, {M}. and {P}oulenard, {J}. and {M}alet, {E}. and {F}anget, {B}. and {S}toren, {E}. and {L}eviavan, {N}. and {S}ervettaz, {A}. and {B}akke, {J}. and {S}abatier, {P}. and {A}rnaud, {F}.},
  editor = {},
  language = {{ENG}},
  abstract = {{C}limatic variability in the {S}outhern {H}emisphere is largely controlled by the latitudinal position of the {S}outhern {H}emisphere {W}esterly {W}inds ({SHW}), whose migration influences precipitation, temperature, and {A}ntarctic upwelling. {T}his study presents the results of analyses of two lacustrine sediment cores from {L}ake {A}rmor, located on the subantarctic {K}erguelen {I}slands (49 degrees 15 ' {S}, 69 degrees 10 ' {E}), within the {SHW} belt. {L}ipid biomarkers ({G}lycerol {D}ialkyl {G}lycerol {T}etraethers, n-alkanes, and their hydrogen isotopes) were used to reconstruct mean annual air temperature above freezing ({MAF}) and humidity conditions. {T}hese records are compared with a high-resolution diatom-based summer sea surface temperature ({SST}) reconstruction from marine core {MD}11-3353, situated 150 km southwest of {L}ake {A}rmor. {I}n the late glacial and {E}arly {H}olocene, our results reveal a period of warm air temperature, comparable to current values and very warm sea surface temperature, 5 degrees {C} above the current values. {A}round 9000 cal a {BP}, an abrupt transition occurred, marked by a cooling of 5 degrees {C} in {SST} and 1.5 degrees {C} in {MAF}, interpreted as a northward migration of the {SHW} and associated oceanic fronts. {T}he {M}id-to-{L}ate {H}olocene period is characterized by pronounced {MAF} variability, including a notably warm interval between 3000 and 2000 cal a {BP}, when n-alkane d{D} suggests the prevalence of wetter conditions. {S}ince similar to 250 cal a {BP}, a southward migration of the {SHW} has produced a 2.5 degrees {C} rise in {MAF}. {O}ur findings are overall consistent with previous studies from the {I}ndian {O}cean, but permit us to go a step further as by comparing {SST}s and air temperatures. {T}his suggests that {SST} is not a reliable predictor of air temperature on the {K}erguelen {I}slands, particularly during the {E}arly {H}olocene. {W}e hence argue that {K}erguelen air temperature is predominantly controlled by the position of westerly winds, as an indicator of reorganisations in air mass trajectories.},
  keywords = {{KERGUELEN} ; {OCEAN} {INDIEN}},
  booktitle = {},
  journal = {{Q}uaternary {S}cience {R}eviews},
  volume = {375},
  numero = {},
  pages = {109753 [19 p.]},
  ISSN = {0277-3791},
  year = {2026},
  DOI = {10.1016/j.quascirev.2025.109753},
  URL = {https://www.documentation.ird.fr/hor/fdi:010096317},
}