@article{fdi:010067384,
  title = {{C}omparison of downscaling methods for mean and extreme precipitation in {S}enegal},
  author = {{S}arr, {M}.{A}. and {S}eidou, {O}. and {T}ramblay, {Y}ves and {E}l {A}dlouni, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{S}tudy region : {T}he study considers six precipitation stations located in {S}enegal, {W}est {A}frica. {S}enegal is located in the {S}ahel, an area that is threatened by climate variability and change. {B}oth droughts and extreme rainfall have been an issue in recent years. {S}tudy focus : {T}wo different statistical downscaling techniques were applied to the outputs of four regional climate models at six selected precipitation stations in {S}enegal. {F}irst, the delta-change method was applied to the mean annual precipitation as well as the 5, 10, 20, 50 and 100-year return period daily precipitation events. {S}econd, a quantile-quantile transformation ({QQ}) was used to downscale the monthly distributions of precipitation simulated by regional climate models ({RCM}s). {T}he 5, 10, 20, 50 and 100-year daily precipitation events were afterward calculated. {A}ll extreme events were calculated assuming that maximum annual daily precipitations follow the generalized extreme value ({GEV}) distribution. {T}he two-sided {K}olmogorov-{S}mirnov ({KS}) test was finally used to assess the performance of the quantile-quantile transformation as well as the {GEV} distribution fit for the annual maximum daily precipitation. {N}ew hydrological insights for the region : {R}esults show that the two downscaling techniques generally agree on the direction of the change when applied to the outputs of same {RCM}, but some cases lead to very different projections of the direction and magnitude of the change. {P}rojected changes indicate adecline in mean precipitation except for one {RCM} over one region in {S}enegal. {P}rojected changes in extreme precipitations are not consistent across stations and return periods. {T}he choice of the downscaling technique has more effect on the estimation of extreme daily precipitations of return period equal or greater than ten years than the choice of the climate models.},
  keywords = {{PRECIPITATION} ; {SIMULATION} ; {ESTIMATION} ; {METHODOLOGIE} ; {STATION} {HYDROLOGIQUE} ; {SECHERESSE} ; {MODELE} {CLIMATIQUE} ; {VARIATION} {ANNUELLE} ; {VARIATION} {JOURNALIERE} ; {CHANGEMENT} {CLIMATIQUE} ; {SENEGAL} ; {ZONE} {SAHELIENNE} ; {DAKAR} ; {LINGUERE} ; {PODOR} ; {ZIGUINCHOR}},
  booktitle = {},
  journal = {{J}ournal of {H}ydrology.{R}egional {S}tudies},
  volume = {4},
  numero = {part {B}},
  pages = {369--385},
  ISSN = {2214-5818},
  year = {2015},
  DOI = {10.1016/j.ejrh.2015.06.005},
  URL = {https://www.documentation.ird.fr/hor/fdi:010067384},
}