@article{fdi:010044188,
  title = {{M}odel representation of the {S}udanian hydrological processes : application on the {D}onga catchment ({B}enin)},
  author = {{L}e {L}ay, {M}. and {S}aulnier, {G}. {M}. and {G}alle, {S}ylvie and {S}{\'e}guis, {L}uc and {M}etadier, {M}. and {P}eugeot, {C}hristophe},
  editor = {},
  language = {{ENG}},
  abstract = {{D}uring the {AMMA} ({A}frican {M}onsoon {M}ultidisciplinary {A}nalysis) program, intensive field experiments were conducted on the {D}onga catchment (586 km(2)), which is part of the {O}ueme surveyed hydrological watershed (14,400 km 2). {B}ased on these studies, a number of general hydrological assumptions were derived to explain the hydrological functioning of catchments located in the {S}udanian hydrological area of {W}est {A}frica. {T}o take advantage of this field-acquired knowledge in the study of the impacts of climate and anthropogenic changes in these catchments, a model ({TOPAMMA}) was derived based on these hydrological assumptions. {S}ubsurface lateral fluxes were described in the model using the {TOPMODEL} framework. {T}he recharge of the deep water table was also modelled, taking into account its disconnection from the river network. {S}imple geomorphotogic approaches were used to estimate the time-transfer of both surface and subsurface water fluxes. {F}inally, to be consistent with the available meteorological data, a simple parameterization of evapotranspiration was added to the model. {T}his paper details this modelisation as well as its corroboration on the {D}onga catchment. {T}he data collected over the catchment during the 2002-2004 periods was therefore used at different scales, within either a quantitative or qualitative perspective. {T}he results show that the model representation of the water cycle is quite realistic, which allows the {AMMA} community to have a useful tool available for water balance studies on the {S}udanian region. {H}owever, further field investigations are necessary to confirm main model assumptions. {F}inally, the process representation in the model is now improved, especially with regard to the description of spatial land-surface heterogeneities and surf ace-atmosphere interactions.},
  keywords = {{H}ydrological modelling ; {W}est {A}frica ; {M}ulti-criteria evaluation},
  booktitle = {},
  journal = {{J}ournal of {H}ydrology},
  volume = {363},
  numero = {1-4},
  pages = {32--41},
  ISSN = {0022-1694},
  year = {2008},
  DOI = {10.1016/j.jhydrol.2008.09.006},
  URL = {https://www.documentation.ird.fr/hor/fdi:010044188},
}