@techreport{fdi:010078603,
  title = {{A}ssessment of the performance of rainfall-runoff model {GR}4{J} to simulate streamflow in {O}u{\'e}m{\'e} watershed at {B}onou's outlet ({W}est {A}frica) [{P}reprint, version 1 non revue par les pairs]},
  author = {{K}odja, {D}.{J}. and {M}ah{\'e}, {G}il and {A}moussou, {E}. and {B}oko, {M}. and {P}aturel, {J}ean-{E}mmanuel},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he study aims to analyze the performance criteria of the {GR}4{J} model to reproduce high water flows in the {O}u{\'e}m{\'e} watershed at {B}onou's outlet which has been vulnerable to climate change in recent decades. {T}he methodology focused on the use of daily climatological and hydrometric data extracted from files of {N}ational {D}irectorate of {M}eteorology, and {G}eneral {D}irectorate of {W}ater; they were supplemented by those of {SIEREM}/{HSM} dataset over the period 1961-2015. {T}he rainfall was regionalized using {T}hiessen method. {T}he performance of the {GR}4{J} model was assessed with {NSE}, {RMSE} and {KGE} criteria. {T}he results indicate that the study area is marked by rainfall variabilities and detection of two breakpoints (1968 and 1987) which divide the series into three sub-periods; these discontinuities have repercussions on the streamflow. {I}t's found that {GR}4{J} model overestimates the streamflow during the low water period and underestimates them in high water. {H}owever, the efficiency and performance criteria {NSE}, {RMSE} and {KGE} calculated on high water flow rates are better in calibration than in validation. {T}he {KGE} values are range between 83-85% in calibration and 56-68% during validation, which gives to {GR}4{J} model the efficiency and performance to reproduce high flow rates in the study area.},
  keywords = {{MODELE} {HYDROLOGIQUE} ; {PLUIE} ; {VARIABILITE} ; {RUISSELLEMENT} ; {ECOULEMENT} ; {DEBIT} ; {SIMULATION} ; {METHODOLOGIE} ; {CLIMAT} ; {EVALUATION} ; {NIVEAU} {DE} {L}'{EAU} ; {ETALONNAGE} ; {EVAPOTRANSPIRATION} {POTENTIELLE} ; {VARIATION} {INTERANNUELLE} ; {BASSIN} {VERSANT} ; {COURS} {D}'{EAU} ; {MODELE} {GR}4{J} ; {CHANGEMENT} {CLIMATIQUE} ; {METHODE} {DE} {THIESSEN} ; {AFRIQUE} {DE} {L}'{OUEST} ; {OUEME} {BASSIN} {VERSANT} ; {BONOU}},
  address = {{B}âle},
  publisher = {{P}reprints.org},
  series = {{P}reprints},
  pages = {18  multigr. [en ligne]},
  year = {2018},
  DOI = {10.20944/preprints201803.0090.v1},
  URL = {https://www.documentation.ird.fr/hor/fdi:010078603},
}