@article{fdi:010067264,
  title = {{E}stimating evaporation in semi-arid areas facing data scarcity : example of the {E}l {H}aouareb dam ({M}erguellil catchment, {C}entral {T}unisia)},
  author = {{A}lazard, {M}arina and {L}educ, {C}hristian and {T}ravi, {Y}. and {B}oulet, {G}illes and {B}en {S}alem, {A}.},
  editor = {},
  language = {{ENG}},
  abstract = {{S}tudy region : {T}he {E}l {H}aouareb dam ({M}erguellil catchment) in central {T}unisia, which is typical of semi-arid environments. {S}tudy focus : {M}ost estimates of evaporation from water bodies located in semi-arid environments suffer from the lack of data, or biased field measurements. {I}t is thus important for hydrologists to assess the relative performance of the various available methods used to estimate this water loss, as well as their uncertainties. {W}e confronted physical approaches based on contrasted theoretical formulae ({D}alton, simplified {BREB}, {P}enman) and geochemical approaches based on mass conservation (stable isotopes and chloride). {W}e compared the results with {C}olorado pan measurements, and tested the methods’ sensitivity to various physical parameters and data gaps. {N}ew hydrological insights for the region : {I}n this region, where mean annual rainfall is 300 mm, estimates of evaporation of the {E}l {H}aouareb {D}am lake ranged from 1400 to 1900 mm a−1, depending on the method and the year. {T}he {P}enman approach was found to be the most robust and gave an annual mean of 1600 mm a−1. {E}vaporation values were refined by combining results from the different methods. {M}ean interannual evaporation was estimated to be 1700 mm a−1, with an uncertainty of 15%. {F}rom this work, we propose an annual {C}olorado pan conversion coefficient of 0.8 which can be adjusted, 1.0 for spring and 0.76 for the rest of the year.},
  keywords = {{EVAPORATION} ; {ESTIMATION} ; {RESSOURCES} {EN} {EAU} ; {VARIATION} {ANNUELLE} ; {VARIATION} {INTERANNUELLE} ; {METHODOLOGIE} ; {PENURIE} ; {BARRAGE} ; {LAC} ; {BASSIN} {VERSANT} ; {DONNEES} {IMPARFAITES} ; {TUNISIE} ; {ZONE} {SEMIARIDE} ; {TUNISIE} {CENTRALE} ; {EL} {HAOUAREB} {BARRAGE} ; {MERGUELLIL} {BASSIN} {VERSANT}},
  booktitle = {},
  journal = {{J}ournal of {H}ydrology : {R}egional {S}tudies},
  volume = {3},
  numero = {},
  pages = {265--284},
  ISSN = {0022-1694},
  year = {2015},
  DOI = {10.1016/j.ejrh.2014.11.007},
  URL = {https://www.documentation.ird.fr/hor/fdi:010067264},
}