@article{fdi:010081527,
  title = {{A}ssessing irrigation water use with remote sensing-based soil water balance at an irrigation scheme level in a semi-arid region of {M}orocco},
  author = {{K}harrou, {M}. {H}. and {S}imonneaux, {V}incent and {E}r-{R}aki, {S}. and {L}e {P}age, {M}ichel and {K}habba, {S}. and {C}hehbouni, {A}bdelghani},
  editor = {},
  language = {{ENG}},
  abstract = {{T}his study aims to evaluate a remote sensing-based approach to allow estimation of the temporal and spatial distribution of crop evapotranspiration ({ET}) and irrigation water requirements over irrigated areas in semi-arid regions. {T}he method is based on the daily step {FAO}-56 {S}oil {W}ater {B}alance model combined with a time series of basal crop coefficients and the fractional vegetation cover derived from high-resolution satellite {N}ormalized {D}ifference {V}egetation {I}ndex ({NDVI}) imagery. {T}he model was first calibrated and validated at plot scale using {ET} measured by eddy-covariance systems over wheat fields and olive orchards representing the main crops grown in the study area of the {H}aouz plain (central {M}orocco). {T}he results showed that the model provided good estimates of {ET} for wheat and olive trees with a root mean square error ({RMSE}) of about 0.56 and 0.54 mm/day respectively. {T}he model was then used to compare remotely sensed estimates of irrigation requirements ({RS}-{IWR}) and irrigation water supplied ({WS}) at plot scale over an irrigation district in the {H}aouz plain through three growing seasons. {T}he comparison indicated a large spatio-temporal variability in irrigation water demands and supplies; the median values of {WS} and {RS}-{IWR} were 130 (175), 117 (175) and 118 (112) mm respectively in the 2002-2003, 2005-2006 and 2008-2009 seasons. {T}his could be attributed to inadequate irrigation supply and/or to farmers' socio-economic considerations and management practices. {T}he findings demonstrate the potential for irrigation managers to use remote sensing-based models to monitor irrigation water usage for efficient and sustainable use of water resources.},
  keywords = {evapotranspiration ; irrigation ; water ; remote sensing ; {FAO}-56 soil water ; balance ; {NDVI} time series ; {MAROC} ; {ZONE} {SEMIARIDE}},
  booktitle = {},
  journal = {{R}emote {S}ensing},
  volume = {13},
  numero = {6},
  pages = {1133 [22 ]},
  year = {2021},
  DOI = {10.3390/rs13061133},
  URL = {https://www.documentation.ird.fr/hor/fdi:010081527},
}