@article{fdi:010086988,
  title = {{U}sing data and models to infer climate and environmental changes during the {L}ittle {I}ce {A}ge in tropical {W}est {A}frica},
  author = {{L}ezine, {A}. {M}. and {C}atrain, {M}. and {V}illamayor, {J}. and {K}hodri, {M}yriam},
  editor = {},
  language = {{ENG}},
  abstract = {{H}ere we present hydrological and vegetation paleo-data extracted from 28 sites in {W}est {A}frica from 5 & {LCIRC}; {S} to 19 & {LCIRC}; {N} and the past1000/{PMIP}4 {IPSL}-{CM}6{A}-{LR} climate model simulations covering the 850-1850 {CE} period to document the environmental and climatic changes that occurred during the {L}ittle {I}ce {A}ge ({LIA}). {T}he comparison between paleo-data and model simulations shows a clear contrast between the area spanning the {S}ahel and the savannah in the north, characterized by widespread drought, and the equatorial sites in the south, where humid conditions prevailed. {P}articular attention was paid to the {S}ahel, whose climatic evolution was characterized by a progressive drying trend between 1250 and 1850 {CE}. {T}hree major features are highlighted: (1) the detection of two early warning signals around 1170 and 1240 {CE} preceding the onset of the {LIA} drying trend; (2) a tipping point at 1800-1850 {CE} characterized by a rainfall drop and an environmental degradation in the {S}ahel; and (3) a succession of drying events punctuating the {LIA}, the major one of which was dated to around 1600 {CE}. {T}he climatic long-term evolution of the {S}ahel is associated with a gradual southward displacement of the {I}nter-{T}ropical {C}onvergence {Z}one induced by the radiative cooling impacts of major volcanic eruptions that have punctuated the last millennium.},
  keywords = {{AFRIQUE} {DE} {L}'{OUEST} ; {ZONE} {TROPICALE}},
  booktitle = {},
  journal = {{C}limate of the {P}ast},
  volume = {19},
  numero = {1},
  pages = {277--292},
  ISSN = {1814-9324},
  year = {2023},
  DOI = {10.5194/cp-19-277-2023},
  URL = {https://www.documentation.ird.fr/hor/fdi:010086988},
}