@article{fdi:010071401,
  title = {{L}and-surface characteristics and climate in {W}est {A}frica : models' biases and impacts of historical anthropogenically-induced deforestation},
  author = {{S}y, {S}. and de {N}oblet-{D}ucoudre, {N}. and {Q}uesada, {B}. and {S}y, {I}. and {D}ieye, {A}. {M}. and {G}aye, {A}. {T}. and {S}ultan, {B}enjamin},
  editor = {},
  language = {{ENG}},
  abstract = {{L}and {U}se {L}and-{C}over {C}hange ({LULCC}), such as deforestation, affects the climate system and land-atmosphere interactions. {U}sing simulations carried out within the {LUCID} ({L}and {U}se and {C}limate, {ID}entification of robust {I}mpacts) project framework, we first quantify the role of historical land-cover change induced by human activities on surface climate in {W}est {A}frica. {F}ocusing on two contrasted {A}frican regions, we find that climate responses of land-use changes are small but they are still statistically significant. {I}n {W}estern {S}ahel, a statistically significant near-surface atmospheric cooling and a decrease in water recycling are simulated in summer in response to {LULCC}. {O}ver the {G}uinean zone, models simulate a significant decrease in precipitation and water recycling in autumn in response to {LULCC}. {T}his signal is comparable in magnitude with the effect induced by the increase in greenhouse gases. {S}imulated climate changes due to historical {LULCC} could however be underestimated because: (i) the prescribed {LULCC} can be underestimated in those regions; (ii) the climate models underestimate the coupling strength between {W}est {A}frican surface climate and leaf area index ({LAI}) and (iii) the lack of interactive {LAI} in some models. {F}inally, our study reveals indirect atmospheric processes triggered by {LULCC}. {O}ver the {W}estern {S}ahel, models reveal that a significant decrease in solar reflection tends to cool down the surface and thus counteracts the atmospheric feedback. {C}onversely, over the {G}uinea zone, models reveal that the indirect atmospheric processes and turbulent heat fluxes dominate the climatic responses over the direct effects of {LULCC}.},
  keywords = {climate change ; deforestation ; land use-land cover change ; land-atmosphere interaction ; land surface models ; {LUCID} ; {W}est {A}frica ; {AFRIQUE} {DE} {L}'{OUEST} ; {ZONE} {SAHELIENNE} ; {ZONE}},
  booktitle = {},
  journal = {{S}ustainability},
  volume = {9},
  numero = {10},
  pages = {art. 1917 [24 p.]},
  ISSN = {2071-1050},
  year = {2017},
  DOI = {10.3390/su9101917},
  URL = {https://www.documentation.ird.fr/hor/fdi:010071401},
}