@article{fdi:010087657, title = {{H}ydroclimate reconstruction during the last 1000 years inferred from the mineralogical and geochemical composition of a sediment core from {L}ake-{A}zuei ({H}aiti)}, author = {{N}oncent, {D}. and {S}ifeddine, {A}bdelfettah and {E}mmanuel, {E}. and {C}ormier, {M}. {H}. and {B}riceno-{Z}uluaga, {F}. {J}. and {M}endez-{M}illan, {M}ercedes and {T}urcq, {B}runo and {C}aquineau, {S}andrine and {V}aldes, {J}. and {B}ernal, {J}. {P}. and {K}ing, {J}. {W}. and {D}jouraev, {I}rina and {C}etin, {F}ethiye and {S}loan, {H}.}, editor = {}, language = {{ENG}}, abstract = {{T}his study aims to reconstruct the hydro-climatic variations over the last 1000 years in {H}aiti using mineralogical and geochemical composition of well dated lacustrine sediment core retrieved from {L}ake {A}zuei. {T}he results show changes in sedimentological processes linked to environmental and climatic variations. {T}he general pattern suggests a wetter {M}edieval {C}limate {A}nomaly ({MCA}), drier {L}ittle {I}ce {A}ge ({LIA}), high climate variability during the {MCA}-{LIA} transition and more anthropogenic impacts that dominate natural climate during the {C}urrent {W}arm {P}eriod ({CWP}). {T}he {MCA} period (similar to 1000-1100 {CE}) thus appears marked by increase sedimentation rate supported by higher terrigenous input linked to erosive events particularly increases in precipitation. {D}uring the {LIA}, particularly from similar to 1450 to 1600 {CE}, there is a great variation toward a decrease of terrigenous input, which is related to a decrease on sedimentation rate and increase {M}g-calcite precipitation, suggesting less precipitation and high evaporation respectively during dry climate conditions. {T}he {MCA}-{LIA} transition (similar to 1200-1400 {CE}) is characterized by variations between terrigenous input, {M}g-calcite formation and organic matter deposition, which indicate succession of dry and humid conditions. {T}he {CWP} (1800-2000 {CE}) shows a progressive increase on sedimentation rate and decrease of gray level, which indicate more organic matter sedimentation as consequence of anthropogenic activities in the surrounding basin of the lake. {H}igh-resolution gray level analysis, which reflects principally variations in terrigenous input, carbonate mineral formation and organic matter deposition, shows that the {AMO}, {NAO}, {PDO} and {ENSO} are the principal modes affecting the hydro-climatic changes in {H}aiti during the last millennium. {I}n addition, temporal correlation of other {C}aribbean paleoclimate records with our geochemical and mineralogical data, suggests that trends observed in {L}ake {A}zuei were controlled by regional climate, likely associated with shifts in the position of the {ITCZ}.}, keywords = {climate change ; geochemistry ; {H}aiti ; hydroclimate variation ; {L}ake {A}zuei ; lake sediment core ; {HAITI}}, booktitle = {}, journal = {{H}olocene}, volume = {[{E}arly access]}, numero = {}, pages = {09596836231163512 [11 p.]}, ISSN = {0959-6836}, year = {2023}, DOI = {10.1177/09596836231163512}, URL = {https://www.documentation.ird.fr/hor/fdi:010087657}, }