@article{fdi:010087664,
  title = {{C}hanges in the {W}est {A}frica monsoon precipitation extremes during {ENSO} developing phases},
  author = {{D}idi, {S}. {R}. and {D}iakhate, {M}. and {D}iedhiou, {A}rona},
  editor = {},
  language = {{ENG}},
  abstract = {{A} 37-year record of rainfall gridded data covering {W}est {A}frica and a {G}lobal {S}ea {S}urface {T}emperature ({SST}) dataset are used to investigate the remote influence of {SST} anomalies in the {E}quatorial {P}acific on the interannual variability of {W}est {A}frica's extreme rainfall indices over the period 1981-2018. {T}he top five (5) years with the strongest and weakest peak of {N}ino3.4 {SST} monthly anomalies are selected, and {M}ay-to-{S}eptember ({MJJAS}) composite anomalies of the total and extreme rainfall indices are performed. {R}esults reveal that {E}quatorial {P}acific {SST}'s impacts on daily rainfall intensity are generally more robust than that on their frequency. {T}he significant changes in the mean zonal atmospheric circulation associated with the {SST} lead to significant dynamic and thermodynamic changes that affect the {W}est {A}frican monsoon system locally. {D}uring {E}l {N}ino ({L}a {N}ina) years, (i) a weakening (strengthening) of the {T}ropical {E}asterly {J}et ({TEJ}), (ii) a strengthening (weakening), and southward (northward) shift position of the {A}frican {E}asterly {J}et ({AEJ}), and (iii) a decrease (increase) of the monsoon flow are noted. {T}hese changes in the atmospheric circulation prevent (encourage) a supply of moisture, resulting in a reduction (increase) in extreme precipitation observed across {W}est {A}frica. {E}quatorial eastern {P}acific warming (cooling) is also shown to lead to stable (unstable) atmospheric conditions over {W}est {A}frica that block (generate) the development of convective systems.},
  keywords = {{W}est {A}frica ; monsoon ; extreme rainfall indices ; {ENSO} ; teleconnections ; {AFRIQUE} {DE} {L}'{OUEST} ; {PACIFIQUE}},
  booktitle = {},
  journal = {{A}tmosphere : {O}cean},
  volume = {61},
  numero = {5},
  pages = {293--305},
  ISSN = {0705-5900},
  year = {2023},
  DOI = {10.1080/07055900.2023.2202656},
  URL = {https://www.documentation.ird.fr/hor/fdi:010087664},
}