@article{fdi:010083969,
  title = {{C}oastal aquifer recharge and groundwater-seawater exchanges using downscaled {GRACE} data : case study of the {D}jeffara plain ({L}ibya-{T}unisia)},
  author = {{G}oncalves, {J}. and {S}eraphin, {P}ierre and {S}tieglitz, {T}homas and {C}hekireb, {A}. and {H}amelin, {B}. and {D}eschamps, {P}ierre},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {D}jeffara plain, extending over {T}unisia and {L}ibya (48,000 km(2)), experiences unsustainable exploitation of groundwater, the severity of which needs to be determined. {H}ere, we used data from {G}ravity {R}ecovery and {C}limate {E}xperiment ({GRACE}) and {G}lobal {L}and {D}ata {A}ssimilation {S}ystem ({GLDAS}) to assess the groundwater storage variation ({D}elta {GWS}) for the period 2002-2016. {D}elta {GWS} values, downscaled over a 0.5 degrees x 0.5 degrees grid using pumping wells spatial distribution and rates, were introduced in a discrete set of groundwater and salt budget equations to ascertain the recharge and the coastal fluxes. {A}n average recharge of 4.3 +/- 2.7 mm.yr(-1) representing 2.2 +/- 1.4% of the domain-averaged annual rainfall was obtained. {A} saline intrusion of 147.3 x 10(6) and 46.9 x 10(6) m(3).yr(-1) was calculated for the {T}ripoli ({L}ibya) and {D}jerba ({T}unisia) areas, respectively. {T}he overall {S}ubmarine {G}roundwater {D}ischarge ({SGD}) of freshwater along the 450 km long {D}jeffara coast represents about 339.6 x 10(6) m(3).yr(-1) for the 2002-2016 period.},
  keywords = {{G}roundwater mass balance ; {S}atellite-derived gravity ; {R}echarge ; {S}ubmarine groundwater discharge ; {A}rid domain ; {G}roundwater sustainability ; {LIBYE} ; {TUNISIE} ; {MEDITERRANEE} ; {ZONE} {ARIDE} ; {MAGHREB} ; {DJEFFARA} {PLAINE}},
  booktitle = {},
  journal = {{C}omptes {R}endus {G}eoscience},
  volume = {353},
  numero = {1},
  pages = {297--318},
  ISSN = {1631-0713},
  year = {2021},
  DOI = {10.5802/crgeos.74},
  URL = {https://www.documentation.ird.fr/hor/fdi:010083969},
}