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24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

Menu INRA Osur

ORE agro-hydrosystèmes

Zone de texte éditable et éditée

Shared topics

common topics

For a review of researches conducted on AgrHyS Observatory see also Fovet et al. (2018).

Transit times: 

  • From historical data on agricultural practices and chemistry at the outlet, comparison of multiple modelling approach to estimate transit times (Beaujouan et al., 2001, 2002; Molénat and Gascuel-Odoux, 2001; Molénat et al., 2013, 2002; Ruiz et al., 2002a). Distinguishing roles of hillslope (transfert - retention) and of riparian zone (transformations); (Oehler et al., 2009; Benhamou et al., 2013)
  • Isotopic (Ayraud et al., 2008) & mathematic tools (Molénat et al., 2013) to assess transit times in headwater catchment. 

Developpement & innovation in metrology:

  • Continuous monitoring of water quality: multi-parameter (Aubert et al., 2013 b) and very high frequency (Faucheux et al., 2014; Aubert et al., 2013 c), developpement  of field laboratories (equipex Critex)
  • Monitoring all the compartments: measuring water quality in streams, groundwater, soil water, rainfall and atmosphere (Lambert et al., 2011)
  • Recording agricultural practices
  • Weather records
  • Continuous monitoring of soil moisture and soil temperature
  • Monitoring temparature in the various hydrological compartments 
  • Storm event monitoring (Aubert et al., 2013c; Lambert et al., 2011; Morel et al., 2009)
  • Isotopic monitoring (Pierson-Wickmann et al., 2005; Ayraud et al., 2008, Lambert et al., 2011) 
  • ICPMS (Aubert et al., 2013 b)


  • Model selection:
    • depending on available data quantity and nature for constraining the model (Molénat et al., 2005) 
    • depending on the level of processes distribution (Beaujouan et al., 2002; Ferrant et al., 2013) 
    • criteria for assessing model performances (Molénat et al., 2013) 
    • agricultural catchment and specificity of mixed cropping-farming systems: CASIMOD’N  (Moreau et al., 2013a) 
    • Sensitivity Analysis of models (Moreau et al., 2013b)
    • uncertainties on parameter values 
  • Integrated approach: coupling hydrologic-atmospheric-farm and soil models
  • Classification of catchment based on crossed hydrobiogeochemical criteria (Aubert et al., 2013a)
  • Hydrological modelling for prediction in ungauged basin (DeLavenne et al., 2013)