@article{fdi:010074899,
  title = {{M}edium term high frequency observation of discharges and suspended sediment in a {M}editerranean mountainous catchment},
  author = {{E}steves, {M}ichel and {L}egout, {C}. and {N}avratil, {O}. and {E}vrard, {O}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n mountainous catchments, soil erosion and sediment transport are highly variable throughout time and their quantification remains a major challenge for the scientific community. {U}nderstanding the temporal patterns and the main controls of sediment yields in these environments requires a long term monitoring of rainfall, runoff and sediment flux. {T}his paper analyses this type of data collected during 7 years (2007-2014), at the outlet of the {G}alabre {R}iver, a 20 km(2) watershed, in south eastern {F}rance, representative of meso-scale {M}editerranean mountainous catchments. {T}his study is based on a hybrid approach using continuous turbidity records and automated total suspended solid sampling to quantify the instantaneous suspended sediment concentrations ({SSC}), sediment fluxes, event loads and yields. {T}he total suspended sediment yield was 4661 {M}g km(-2) and was observed during flood events. {T}he two crucial periods for suspended sediment transport at the outlet were {J}une and {N}ovember/{D}ecember (63% of the total). {T}he analysis of suspended sediment transport dynamics observed during 236 flood events highlighted their intermittency and did not show any clear relationship between rainfall, discharge and {SSC}. {T}he most efficient floods were characterised by counter-clockwise hysteresis relationships between {SSC} and discharges. {T}he floods with complex hysteresis were the more productive in the long term, during this measuring period exceeding a decade. {N}evertheless, the current research outlines the need to obtain medium-term (five years) continuous time series to assess the range of variations of suspended sediment fluxes and to outline clearly the seasonality of suspended sediment yields. {R}esults suggest the occurrence of a temporal dis-connectivity in meso-scale catchments over short time-scales between the meteorological forcing and the sediment yields estimated at the outlet. {T}hese findings have important methodological impacts for modelling and operational implications for watershed management.},
  keywords = {{ZONE} {MEDITERRANEENNE} ; {E}rosion ; {T}urbidity ; {S}ediment yield ; {S}ediment transport ; {F}rench ; {M}editerranean {A}lps ; {FRANCE} ; {ALPES}},
  booktitle = {},
  journal = {{J}ournal of {H}ydrology},
  volume = {568},
  numero = {},
  pages = {562--574},
  ISSN = {0022-1694},
  year = {2019},
  DOI = {10.1016/j.jhydrol.2018.10.066},
  URL = {https://www.documentation.ird.fr/hor/fdi:010074899},
}