Baulon, Lisa Fossa, Manuel Massei, Nicolas Flipo, Nicolas Gallois, Nicolas Fournier, Matthieu Dieppois, Bastien Danaila, Luminita Allier, Delphine Bessiere, Hélène
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Groundwater level (GWL) can vary over a wide range of timescales. Previous studies highlighted that low- frequency variability (interannual (2–8 years) to decadal (>10 years)) originating from large-scale climate variability, represents a significant part of GWL variance. It remains an open question, however, how GWL, including extremes, may respon...
Texier, Jérôme Gonçalvès, Julio Stieglitz, Thomas Vallet-Coulomb, Christine Labille, Jérôme Marc, Vincent Poulain, Angélique Dussouillez, Philippe
Study regionThe study was conducted in an alluvial plain between the Rhône and the Ouvèze Rivers (in the southeast of France) extensively exploited for drinking water. The research area is characterized by significant groundwater-surface interactions influenced by groundwater pumping activities.Study focusThe aim of this study is to enhance the und...
Benoit, Lionel Koch, Erwan Peleg, Nadav Mariethoz, Gregoire
The relationship between mean daily precipitation and elevation is often regarded as linear and positive, resulting in simple "precipitation lapse rate" equations frequently employed to extrapolate daily rainfall from a single weather station over a large area. We examine the precipitation-elevation relationship in the Swiss Alps using a combinatio...
Tran-Nguyen, Minh-Thu Benferhat, Salem Chahinian, Nanee Delenne, Carole Do, Thanh-Nghi
International audience
Thirel, Guillaume Santos, Léonard Delaigue, Olivier Perrin, Charles
The calibration of hydrological models through the use of automatic algorithms aims at identifying parameter sets that minimize the deviation of simulations from observations (often streamflows). Further, the choice of objective function (i.e. the criterion or combination of criteria for optimization) can significantly impact the parameter set valu...
Guillaumot, Luca Munier, Simon Abhervé, Ronan Vergnes, Jean-Pierre Jeantet, Alexis Le Moigne, Patrick Habets, Florence
Predicting and managing water resources at regional scale under different climate and socio-economic scenarios is crucial to support drinking water supply and other sectors. At the same time, protecting rivers and wetlands from pollutions and droughts is essential and must include groundwater given its contribution to surface water. Yet, assessing ...
Chapuis, Margot Martin, Nicolas Fox, Dennis
Poursuite des études liées à la tempête Alex par le CNRS: 1/ Cartographie des cumuls de pluie dans la vallée lors de la tempête Alex; 2/ Modélisations hydrologiques des débits de la Roya en France-Italie; 3/ Transport sédimentaire en Roya: retour d'expérience de 7 années de suivi et modélisation des flux en contexte de changement climatique
Thirel, Guillaume Tramblay, Yves
International audience
Dhouib, Mariem Molénat, Jérôme Prevot, Laurent Mekki, Insaf Zitouna-Chebbi, Rim Jacob, Frédéric
Within hilly agricultural landscapes, topography induces lateral transfers of runoff water, so-called interplot hydrological connectivity. Runoff water from upstream plots can infiltrate downstream plots, thus influencing the water content in the root zone that drives crop functioning. The current study aims to comprehensively investigate the impac...
Coatléven, Julien Chauveau, Benoit
In a recent paper, a consistency correction for the water flux using multiple flow direction (MFD) algorithms that account for exchanges between a cell and its neighbors was proposed, thanks to a reinterpretation of the MFD as a well chosen discretization of the Gauckler-Manning-Strickler continuous equation. Building on those results, we introduce...
