@incollection{fdi:010017942,
  title = {{E}xploring climatic impacts on water resources in {W}est {N}iger, {A}frica},
  author = {{V}ieux, {R}.{E}. and {L}ooper, {J}.{P}. and {C}appelaere, {B}ernard and {P}eugeot, {C}hristophe and {M}aia, {A}.},
  editor = {},
  language = {{ENG}},
  abstract = {{D}rought persisting in the {S}ahel for more than 25 years, impacting both surface and subsurface water resources, raises the question whether the hydrological impacts are proportional, dampened, or amplified in response to the climatic change manifested by the drought experienced since 1970. {A} physically-based distributed model, r.water.fea, applied to a 2.48 km2 endoreic drainage basin, typical of the {N}iamey area of {W}est {N}iger, is used to evaluate the sensitivity of the hydrological system to such climatic extremes under four reduced-rainfall scenarios. {S}cenarios are built by elimination of various subsets of recorded storm events from the four monitored seasons 1992-1995. {T}he hydrological response varies from no decrease to nearly a 30% decrease depending on the storm selection criteria. {T}hese results emphasize the variability of the hydrological response to regional climatic changes and the importance of a detailed characterization of the hydrological process transforming rainfall into runoff at the basin-event scale. ({R}{\'e}sum{\'e} d'auteur)},
  keywords = {{CLIMATOLOGIE} ; {SECHERESSE} ; {RESSOURCES} {EN} {EAU} ; {PLUVIOMETRIE} ; {BILAN} {HYDROLOGIQUE} ; {MODELISATION} ; {PLUIE} ; {DEBIT} ; {RELATION} ; 1992 1995 ; {NIGER} ; {NIAMEY} {REGION} ; {WANKAMA} {BASSIN} {VERSANT}},
  booktitle = {{W}ater resources variability in {A}frica during the 20th century = {V}ariabilit{\'e} des ressources en eau en {A}frique au 20{\`e}me si{\`e}cle},
  numero = {252},
  pages = {347--354},
  address = {{W}allingford},
  publisher = {{AISH}},
  series = {{P}ublication - {AISH}},
  year = {1998},
  ISBN = {1-901502-65-1},
  ISSN = {0144-7815},
  URL = {https://www.documentation.ird.fr/hor/fdi:010017942},
}