@article{fdi:010052956,
  title = {{H}ydrological modelling of a closed lake ({L}aguna {M}ar {C}hiquita, {A}rgentina) in the context of 20th century climatic changes},
  author = {{T}roin, {M}. and {V}allet-{C}oulomb, {C}. and {S}ylvestre, {F}lorence and {P}iovano, {E}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A} major hydroclimatic change occured in southeastern {S}outh {A}merica at the beginning of the 1970s. {T}his change was recorded in {L}aguna {M}ar {C}hiquita (central {A}rgentina), the terminal saline lake of a 127,000 km(2) catchment as a dramatic rise in lake level larger than any observed over the past 230 years. {B}ased on available continuous lake level monitoring since 1967, our study aimed to develop a lake water balance model for investigating the link between climate and lake level variations. {S}ince un-gauged downstream surfaces represented approximately 80% of the catchment, the main challenge of the model development and implementation came from estimating the magnitude of catchment inputs from sparsely available gauge data. {W}e determined a strongly negative water balance in the un-gauged part of the catchment that can be attributed to evapotranspiration in two large surface water hydrosystems. {T}he chloride balance indicated that the lake is hydrologically closed, without significant groundwater outflows. {U}sing contrasted hydroclimatic conditions, the robustness of the model calibration was evaluated with the model residual, and a short validation proposed for the 1998-2006 time period. {S}ensitivity analyses were performed in order to identify the main forcing factors of lake variations. {W}e determined that the abrupt lake level rise in the early 1970s could be attributed to increased runoff in the upper northern sub-basin, suggesting a tropical climatic influence. {B}ased on available hydroclimatic data, we propose a continuous lake level simulation for the 1926-2006 time period which could be used as a reference curve for better constraining paleohydrological reconstructions from sedimentary proxies.},
  keywords = {{C}limate change ; {L}ake model ; {S}aline lake ; {S}outheastern {S}outh {A}merica ; {L}aguna {M}ar {C}hiquita},
  booktitle = {},
  journal = {{J}ournal of {H}ydrology},
  volume = {393},
  numero = {3-4},
  pages = {233--244},
  ISSN = {0022-1694},
  year = {2010},
  DOI = {10.1016/j.jhydrol.2010.08.019},
  URL = {https://www.documentation.ird.fr/hor/fdi:010052956},
}