@article{fdi:010073807,
  title = {{AMMA}-{CATCH}, a critical zone observatory in {W}est {A}frica monitoring a region in transition},
  author = {{G}alle, {S}ylvie and {G}rippa, {M}. and {P}eugeot, {C}hristophe and {M}oussa, {I}. {B}. and {C}appelaere, {B}ernard and {D}emarty, {J}{\'e}rome and {M}ougin, {E}. and {P}anthou, {G}. and {A}djomayi, {P}. and {A}gbossou, {E}. {K}. and {B}a, {A}. and {B}oucher, {M}arie and {C}ohard, {J}. {M}. and {D}escloitres, {M}arc and {D}escroix, {L}uc and {D}iawara, {M}. and {D}ossou, {M}. and {F}avreau, {G}uillaume and {G}angneron, {F}. and {G}osset, {M}arielle and {H}ector, {B}asile and {H}iernaux, {P}. and {I}ssoufou, {B}. {A}. and {K}ergoat, {L}. and {L}awin, {E}. and {L}ebel, {T}hierry and {L}egchenko, {A}natoli and {A}bdou, {M}. {M}. and {M}alam {I}ssa, {O}umarou and {M}amadou, {O}. and {N}azoumou, {Y}. and {P}ellarin, {T}. and {Q}uantin, {G}uillaume and {S}ambou, {B}. and {S}eghieri, {J}osiane and {S}{\'e}guis, {L}uc and {V}andervaere, {J}. {P}. and {V}ischel, {T}. and {V}ouillamoz, {J}. {M}. and {Z}annou, {A}. and {A}fouda, {S}. and {A}lhassane, {A}. and {A}rjounin, {M}arc and {B}arral, {H}{\'e}l{\`e}ne and {B}iron, {R}omain and {C}azenave, {F}r{\'e}d{\'e}ric and {C}haffard, {V}. and {C}hazarin, {J}. {P}. and {G}uyard, {H}{\'e}l{\`e}ne and {K}one, {A}. and {M}ainassara, {I}. and {M}amane, {A}. and {O}i, {M}onique and {O}uani, {T}. and {S}oumaguel, {N}. and {W}ubda, {M}. and {A}go, {E}. {E}. and {A}lle, {I}. {C}. and {A}llies, {A}. and {A}rpin-{P}ont, {F}. and {A}wessou, {B}. and {C}harvet, {G}. and {C}asse, {C}laire and {D}ardel, {C}. and {D}epeyre, {A}. and {D}iallo, {F}atoumata {B}inta and {D}o, {T}. and {F}atras, {C}. and {F}rappart, {F}. and {G}al, {L}a{\¨e}titia and {G}ascon, {T}. and {G}ibon, {F}. and {G}uiro, {I}. and {I}ngatan, {A}. and {K}empf, {J}ean and {K}otchoni, {D}. {O}. {V}. and {L}awson, {F}. {M}. {A}. and {L}eauthaud, {C}. and {L}ouvet, {S}. and {M}ason, {E}lo{\¨ie}se and {N}guyen, {C}. {C}. and {P}errimond, {B}. and {P}ierre, {C}. and {R}ichard, {A}. and {R}obert, {E}. and {R}oman-{C}ascon, {C}. and {V}elluet, {C}ecile and {W}ilcox, {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{W}est {A}frica is a region in fast transition from climate, demography, and land use perspectives. {I}n this context, the {A}frican {M}onsoon {M}ultidisciplinary {A}nalysis ({AMMA})-{C}ouplage de l'{A}tmosphere {T}ropicale et du {C}ycle eco-{H}ydrologique ({CATCH}) long-term regional observatory was developed to monitor the impacts of global change on the critical zone of {W}est {A}frica and to better understand its current and future dynamics. {T}he observatory is organized into three thematic axes, which drive the observation and instrumentation strategy: (i) analyze the long-term evolution of eco-hydrosystems from a regional perspective; (ii) better understand critical zone processes and their variability; and (iii) meet socioeconomic and development needs. {T}o achieve these goals, the observatory has gathered data since 1990 from four densely instrumented mesoscale sites (similar to 10(4) km(2) each), located at different latitudes ({B}enin, {N}iger, {M}ali, and {S}enegal) so as to sample the sharp eco-climatic gradient that is characteristic of the region. {S}imultaneous monitoring of the vegetation cover and of various components of the water balance at these four sites has provided new insights into the seemingly paradoxical eco-hydrological changes observed in the {S}ahel during the last decades: groundwater recharge and/ or runoff intensification despite rainfall deficit and subsequent re-greening with still increasing runoff. {H}ydrological processes and the role of certain key landscape features are highlighted, as well as the importance of an appropriate description of soil and subsoil characteristics. {A}pplications of these scientific results for sustainable development issues are proposed. {F}inally, detecting and attributing eco-hydrological changes and identifying possible regime shifts in the hydrologic cycle are the next challenges that need to be faced.},
  keywords = {{AFRIQUE} {DE} {L}'{OUEST} ; {BENIN} ; {NIGER} ; {MALI} ; {SENEGAL} ; {SAHEL} ; {ZONE} {SOUDANOSAHELIENNE}},
  booktitle = {},
  journal = {{V}adose {Z}one {J}ournal},
  volume = {17},
  numero = {1},
  pages = {180062 [24 ]},
  ISSN = {1539-1663},
  year = {2018},
  DOI = {10.2136/vzj2018.03.0062},
  URL = {https://www.documentation.ird.fr/hor/fdi:010073807},
}