@article{fdi:010082078,
  title = {{A}n evapotranspiration model driven by remote sensing data for assessing groundwater resource in karst watershed},
  author = {{O}llivier, {C}. and {O}lioso, {A}. and {C}arri{\`e}re, {S}. {D}. and {B}oulet, {G}illes and {C}halikakis, {K}. and {C}hanzy, {A}. and {C}harlier, {J}. {B}. and {C}ombemale, {D}. and {D}avi, {H}. and {E}mblanch, {C}. and {M}arloie, {O}. and {M}artin-{S}t {P}aul, {N}. and {M}azzilli, {N}. and {S}imioni, {G}. and {W}eiss, {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A}quifer recharge may depend mainly on the difference between precipitation and evapotranspiration. {H}ydrological models used to estimate groundwater reserves use evapotranspiration models that are mainly determined by climate demand. {I}n particular, mechanisms of plant transpiration are neglected, although transpiration constitutes 70% of evapotranspiration. {T}his is problematic when considering karst watershed, which are poorly documented at the interface between soil and atmosphere where vegetation and soil properties control water flows. {T}o fill this gap, we propose an evapotranspiration model that integrates the processes of plant transpiration and soil evaporation. {T}he dynamics of vegetation is evaluated using the {E}nhanced {V}egetation {I}ndexes from the {T}erra and {A}qua {M}oderate {R}esolution {I}maging {S}pectroradiometers. {T}he soil evaporation calculation account for the impact of coarse elements at soil surface. {T}he "{S}imple {C}rop coefficient for {E}vapotranspiration" ({S}imp{K}c{ET}) model is tested at flux tower sites over forest of {F}ont-{B}lanche, {P}uechabon and the agricultural area of {A}vignon. {T}he simulated daily evapotranspirations are very close to the observations ({RMSE} similar to 0.5 mm.d(-1)), while the model is simple compared to other models proposed in the literature. {T}he {S}imp{K}c{ET} is implemented in a karst hydrological model to evaluate the impact of evapotranspiration estimation on the aquifer flow rate simulation. {T}his approach is applied to the vast watershed of {F}ontaine de {V}aucluse. {I}n comparison to the water bucket model that is frequently used in karst models, {S}imp{K}c{ET} provide {ET} simulations that are more in line with {ET} processes. {A} cross wavelet analysis highlighted the improvement of the simulated recharge and observed flow rate relationship brought by the consideration of evaporation and transpiration processes. {T}he use of remote sensing data related to plant activity makes it possible to propose a parsimonious model that can be applied to all types of vegetation (agricultural, natural, mixed forest) and that can be transferred to other karst models.},
  keywords = {{E}vapotranspiration ; {F}raction cover ; {H}ydrological modelling ; {K}arst ; {R}echarge ; {FRANCE} ; {ZONE} {MEDITERRANEENNE} ; {PUECHABON} ; {AVIGNON} ; {MARSEILLE}},
  booktitle = {},
  journal = {{S}cience of the {T}otal {E}nvironment},
  volume = {781},
  numero = {},
  pages = {146706 [24 p.]},
  ISSN = {0048-9697},
  year = {2021},
  DOI = {10.1016/j.scitotenv.2021.146706},
  URL = {https://www.documentation.ird.fr/hor/fdi:010082078},
}