@article{fdi:010091234,
  title = {{T}ransit time tracing using wetness-adaptive {S}tor{A}ge {S}election functions-application to a {M}editerranean catchment},
  author = {{H}achgenei, {N}. and {N}ord, {G}. and {S}padini, {L}. and {G}inot, {P}atrick and {V}oiron, {C}. and {D}uwig, {C}{\'e}line},
  editor = {},
  language = {{ENG}},
  abstract = {{N}ot just the quantities but also the transit times are of crucial importance for understanding the transfer of water through a catchment. {T}his information is essential, for example, for determining the risk of the transfer of contaminants from diffuse, agricultural sources toward surface water bodies. {W}e created a hydrological agetracking reservoir model of a meso-scale {M}editerranean catchment that is prone to flash floods. {W}e implemented {S}tor{A}ge {S}election ({SAS}) functions that adapt to the catchment's wetness condition in order to represent changing flow processes. {T}he goal is to evaluate the evolution of transit time distributions ({TTD}s) through the catchment (1 h time step, 1 h resolution), providing an example for a rural catchment under a {M}editerranean climate. {T}he focus is on flood events, and the results are interpreted with regard to the risk of contaminant transfer from diffuse sources. {T}he dependence of water age preferences on catchment wetness is examined. {W}e propose and test a multi-tracer approach to parametrize {SAS} functions on multiple reservoirs. {T}he model was calibrated and validated against the streamflow discharge ({Q}), deuterium isotope signature (delta 2{H}) and dissolved silica concentration ([{S}i]) at the outlet. {W}hile delta 2{H} acted as a direct tracer of rain-water, [{S}i] was used as a tracer of the contact time with the soil and rock minerals. {T}he model revealed high event water fractions during flood events (with up to 63 % of water younger than one day) and a dominance of water older than one year most of the remaining time. {T}his suggests an elevated risk of the transfer of agricultural contaminants toward streams during flood events. {T}he results also indicate an inverse storage effect ({ISE}), with young water preferences increasing under wet conditions.},
  keywords = {{S}tor{A}ge {S}election function ; {T}ransit time distribution ; {N}ew water fraction ; {M}editerranean climate ; {F}lash flood ; {C}ontaminant ; {ZONE} {MEDITERRANEENNE}},
  booktitle = {},
  journal = {{J}ournal of {H}ydrology},
  volume = {638},
  numero = {},
  pages = {131267 [16 ]},
  ISSN = {0022-1694},
  year = {2024},
  DOI = {10.1016/j.jhydrol.2024.131267},
  URL = {https://www.documentation.ird.fr/hor/fdi:010091234},
}