@article{fdi:010079871,
  title = {{S}easonal variations of the depletion factor during recession periods in the {S}enegal, {G}ambia and {N}iger watersheds},
  author = {{B}ader, {J}ean-{C}laude and {D}acosta, {H}. and {P}ouget, {J}ean-{C}hristophe},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he daily depletion factor{K}describes the discharge decrease of rivers only fed by groundwater in the absence of rainfall. {I}n the {S}enegal, {G}ambia and {N}iger river basins in {W}est {A}frica, the flow recession can exceed 6 months and the precise knowledge of{K}thus allows discharge forecasts to be made over several months, and is hence potentially interesting for hydraulic structure managers. {S}easonal flow recession observed at 54 gauging stations in these basins from 1950 to 2016 is represented by empirical and usual conceptual models that express{K}. {C}ompared to conventional conceptual models, an empirical model representing{K}as a polynomial of the decimal logarithm of discharge{Q}gives better representations of{K}and better discharge forecasting at horizons from 1 to 120 days for most stations. {T}he relationship between specific discharge{Q}sand{K}, not monotonous, is highly homogeneous in some sub-basins but differs significantly between the {S}enegal and {G}ambia basins on the one hand and the {N}iger basin on the other. {T}he relationship{K}({Q}) evolves slightly between three successive periods, with values of{K}generally lower (meaning faster discharge decrease) in the intermediate period centered on the years 1970-1980. {T}hese climate-related interannual variations are much smaller than the seasonal variations of{K}.},
  keywords = {flow recession model ; discharge forecast ; {S}enegal {R}iver ; {G}ambia {R}iver ; {N}iger {R}iver ; {AFRIQUE} {DE} {L}'{OUEST} ; {SENEGAL} ; {MALI} ; {GAMBIE} ; {SENEGAL} {COURS} {D}'{EAU} ; {GAMBIE} {COURS} {D}'{EAU} ; {NIGER} {COURS} {D}'{EAU}},
  booktitle = {},
  journal = {{W}ater},
  volume = {12},
  numero = {9},
  pages = {2520 [24 ]},
  year = {2020},
  DOI = {10.3390/w12092520},
  URL = {https://www.documentation.ird.fr/hor/fdi:010079871},
}