Ce rapport fait le point sur les suivis hydrologiques menés depuis 2003 dans la Vallée Obscure, et tout particulièrement ceux concernant les étiages. Depuis 2009, aux 5 stations stations hydrométriques initiales (pour des bassins de 0,27 à 3,93 km2 sur granite et gneiss), ont été ajoutées une station à une source et une autre sur le Gardon de...
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2010 (v1)PublicationUploaded on: December 3, 2022
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2008 (v1)Publication
Ce rapport fait les point des recherches hydrologiques menées sur un bassin versant cristallin cévenol. Les dispositif de mesure comporte 5 stations hydrométriques (pour des superficies contrôlées de 0,27 à 3.93 km2), 2 pluviographes, une station de suivi de l'humidité des sols par sondes TDR...
Uploaded on: December 3, 2022 -
June 2010 (v1)Journal article
Flash floods are the most destructive natural hazards that occur in the Mediterranean region. Rainfall-runoff models can be very useful for flash flood forecasting and prediction. Event-based models are very popular for operational purposes, but there is a need to reduce the uncertainties related to the initial moisture conditions estimation...
Uploaded on: December 4, 2022 -
November 5, 2021 (v1)Report
Le secteur cévenol apparaît comme une zone prioritaire pour appréhender les ressources en eau. La présente convention complète les travaux précédents d'évaluation régulière des basses eaux pendant la période estivale, dans le cadre des programmes scientifiques Hydropop 1 & 2, portés successivement par l'UM ESPACE (Philippe Martin) et par l'IMT...
Uploaded on: December 3, 2022 -
May 31, 2022 (v1)Conference paper
To estimate series of water flows, it is required to collect a set of reliable stream measures, as accurate as possible, and to generalize them using continuous water height measurement from immersed sensors. Many methods are used to do so such as gauging by salt for conductivity, velocimeter based on Dopler radar ultrasound to draw the river...
Uploaded on: December 25, 2023 -
September 23, 2014 (v1)Conference paper
In the Cevennes mountainous area, flood processes are due to excess of soil water storage capacity depending on soil porosity, depth and water content at the beginning of the flood (Bouvier et al., 2007; Cosandey, 1994). For hydrological modeling, it is thus important to estimate the hydrodynamic properties of the whole vertical soil profile....
Uploaded on: December 4, 2022 -
July 5, 2021 (v1)Conference paper
Dans le contexte cévenol qui induit un climat sec et chaud durant la période estivale et des pluviométries élevées et localisées durant l'automne, dues notamment à la combinaison entre la rencontre des masses d'air froides atlantiques et des masses d'air chaudes méditerranéennes combinées au soulèvement orographique induit par le massif des...
Uploaded on: October 1, 2024 -
March 24, 2021 (v1)Publication
This study focuses on a 10-m2 plot within a granitic hillslope in Cevennes mountainous area in France, in order to study infiltration and subsurface hydrological processes during heavy rainfalls and flash floods. The monitoring device included water content at several depths (0-70cm for the shallow soil water; 0-10m for the deep water) during...
Uploaded on: February 22, 2023 -
November 1, 2020 (v1)Report
No description
Uploaded on: December 4, 2022 -
May 23, 2022 (v1)Conference paper
Concentration-discharge relationships have been extensively utilized to infer the routing of water and pathways of (bio)geochemical reactions in the Critical Zone. To date, relatively little complementary development of stable isotope ratio - discharge relationships has been made, despite the fact that these tracers are commonly used to...
Uploaded on: August 15, 2024 -
November 1, 2019 (v1)Report
No description
Uploaded on: December 4, 2022 -
January 1, 2020 (v1)Report
Convention et avenant en date du 4 juin 2018 entre le EPTB Gardons et Avignon université (UMR ESPACE) sur l'installation et le suivi de stations d'étiage dans les Gardons de 2018 à 2020.
Uploaded on: December 4, 2022 -
January 2, 2021 (v1)Journal article
The increase in the severity of hydrological droughts in the Mediterranean basin in relation to climate change leads to the need to better understand the origin of the water resource to improve its management. The defined study area, the Cevennes upper watershed of the Gardons, presents quite significant variations in terms of low water flows....
Uploaded on: December 3, 2022 -
December 1, 2012 (v1)Report
Ce rapport fait la synthèse des données hydrologiques recueillies par l'antenne cévenole de l'UMR ESPACE 7300 dans le secteur de Peyrolles (Gardon de Saint Jean et Vallée obscure) au cours des deux cycles hydrologiques 2010-2011 et 2011-2012.
Uploaded on: February 28, 2023