@article{fdi:010068812,
  title = {{E}lucidating the climate and topographic controls on stable isotope composition of meteoric waters in {M}orocco, using station-based and spatially-interpolated data},
  author = {{B}rahim, {Y}. {A}. and {B}ouchaou, {L}. and {S}ifeddine, {A}bdelfettah and {K}hodri, {M}yriam and {R}eichert, {B}. and {C}ruz, {F}. {W}.},
  editor = {},
  language = {{ENG}},
  abstract = {{U}nderstanding the main controls on stable isotope variations in precipitation is fundamental for the interpretation of the hydrological cycle. {H}owever, spatio-temporal variations in delta {O}-18(p) are poorly known in {M}orocco. {H}erein, we explore the relative influence of meteorological variables, spatial and orographic (attitudinal) effects, atmospheric circulation and moisture sources on precipitation stable isotopes in {M}orocco. {P}recipitation events and two-years-long monthly records from 17 rain-gauge stations in {M}orocco are investigated and compared in this study to global gridded records of monthly and annual stable isotopes in precipitation. {W}e highlight that the main spatial controls on precipitation stable isotopes are the topography and the distance from marine source. {T}he most depleted mean annual isotopes are located in the {H}igh {A}tlas {M}ountains (delta {O}-18(p) = -9.56 parts per thousand and delta {H}-2(p) = -59.3 parts per thousand), while the most enriched isotope ratios exist in southwestern {M}orocco (delta {O}-18(p) = -2.35 parts per thousand and delta {H}-2(p) = -7.47 parts per thousand). {T}he well-constrained relationship between delta {O}-18(p) and altitude describes a gradient of 0.11-0.18 parts per thousand, per 100 m. {T}he seasonal variation is expressed by a general enrichment that reaches -4.8 parts per thousand during the dry season, related to the recycled vapor contained within the summer precipitation. {N}otwithstanding the scarcity of temperature and precipitation measurements, the amount effect is observed in multiple stations during several rain events and precipitation seems to have more influence on delta {O}-18(p) than temperature. {B}ackward moisture trajectories indicate a distinct depletion in delta {O}-18(p) in extreme events originating from the {A}tlantic {O}cean. {T}he presence of a rain shadow effect is also revealed on the lee side of {H}igh {A}tlas {M}ountains, southeastern {M}orocco.},
  keywords = {{P}recipitation ; {S}table isotopes ; {M}orocco ; {A}mount effect ; {N}orth {A}tlantic ; {O}scillation ; {MAROC} ; {ATLANTIQUE} {NORD}},
  booktitle = {},
  journal = {{J}ournal of {H}ydrology},
  volume = {543},
  numero = {{B}},
  pages = {305--315},
  ISSN = {0022-1694},
  year = {2016},
  DOI = {10.1016/j.jhydrol.2016.10.001},
  URL = {https://www.documentation.ird.fr/hor/fdi:010068812},
}