Robust and flexible hydroinformatics to account for rainfall space-time variability in a data-sparse region

S. Chargui , Christophe Cudennec (1) , M. Slimani , J.C. Pouget , J. Aouissi

1 SAS - Sol Agro et hydrosystème Spatialisation

Rainfall is a major meteorological factor in water assessment in semi-arid basins. For mesoscale basins, the rainfall space-time variability is high and has a major influence on hydrological dynamics. A geomorphology-based rainfall-runoff approach is developed to account for rainfall space-time variability in a robust and flexible manner, according to changing available raingauging configurations. The approach is based on a two-step hydroinformatics protocol, firstly to analyse geomorphometry, and secondly to account for and benefit from available rainfall data.

Mots clés: RAINFALLandRUNOFF; GEOMORPHOLOGY-BASED TRANSFER FUNCTION; RAINFALL SPACE-TIME VARIABILITY; ISOCHRONE; HYDROLOGY

Domaines: Science des sols

S. Chargui, Christophe Cudennec, M. Slimani, J.C. Pouget, J. Aouissi. Robust and flexible hydroinformatics to account for rainfall space-time variability in a data-sparse region. IAHS Publication Symposium HS.2 at the Joint IAHS & IAH Convention "New Approaches to Hydrological Prediction in Data-sparse Regions" Hyderabad, IAHS/AISH, pp.295-301, 2009. ⟨hal-00730068⟩