A5017515714- Soil erosion and sediment transport
- Hydrology and Watershed Management Studies
- Geological and Geophysical Studies Worldwide
- Water resources management and optimization
- Soil and Unsaturated Flow
- Groundwater flow and contamination studies
- Hydrology and Sediment Transport Processes
- Soil Moisture and Remote Sensing
- Climate change and permafrost
- Flood Risk Assessment and Management
- Geology and Paleoclimatology Research
- Grouting, Rheology, and Soil Mechanics
- Geological formations and processes
- French Language Learning Methods
- Dam Engineering and Safety
- Mediterranean and Iberian flora and fauna
- Geophysical and Geoelectrical Methods
- Plant Water Relations and Carbon Dynamics
- Hydrology and Drought Analysis
- African Botany and Ecology Studies
- Landslides and related hazards
- Linguistics and Discourse Analysis
- Water Governance and Infrastructure
- Agriculture and Rural Development Research
- Geophysics and Gravity Measurements
CEA Paris-Saclay
2006-2023
Laboratoire des Sciences du Climat et de l'Environnement
2010-2023
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2002-2023
Centre National de la Recherche Scientifique
2014-2020
Université de Versailles Saint-Quentin-en-Yvelines
2014-2020
Institut Pierre-Simon Laplace
2018
Stress Environnementaux et Biosurveillance des Milieux Aquatiques
2012-2013
French National Agency for Water and Aquatic Environments
2011-2013
Abstract The rate at which land surface soils dry following rain events is an important feature of terrestrial models. It determines, for example, the water availability vegetation, occurrences droughts, and heat exchanges. As such, soil moisture (SSM) “drydowns,” i.e., SSM temporal dynamics a significant rainfall event, are particular interest when evaluating calibrating models (LSMs). By investigating drydowns, characterized by exponential decay time scale τ , we aim to improve...
Dans le cadre du projet Explore 2070, une évaluation des impacts possibles changements climatiques sur les eaux de surface à l'horizon 2046-2065 par rapport un état référence 1961-1990 a été réalisée en France métropolitaine et départements d'Outre-Mer la base scénario d'émission gaz effet serre A1B, sept modèles deux hydrologiques (Isba-Modcou GR4J). Sur métropole, résultats obtenus indiquent : (1) augmentation possible températures moyennes annuelles l'air l'ordre +1,4°C + 3°C ; (2)...
Soil moisture plays a key role in water, carbon and energy exchanges between the land surface atmosphere. Therefore, better representation of this variable Land-Surface Models (LSMs) used climate modelling could significantly reduce uncertainties associated with future predictions. In study, ESA-CCI soil (SM) combined product (v4.2) has been confronted to simulated top-first layers/cms ORCHIDEE LSM (the continental part IPSL Earth System Model) for years 2008-2016, evaluate its potential...
published or not.The documents may come from teaching and research institutions in France abroad, public private centers.L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de scientifiques niveau recherche, publiés ou non, émanant des établissements d'enseignement recherche français étrangers, laboratoires publics privés.
Abstract. The SECHIBA module of the ORCHIDEE land surface model describes exchanges water and energy between atmosphere. In present paper, adjoint semi-generator software called YAO was used as a framework to implement 4D-VAR assimilation scheme observations in SECHIBA. objective deliver (SECHIBA-YAO) obtained with provide an opportunity for scientists end users perform their own assimilation. SECHIBA-YAO allows control 11 most influential internal parameters soil content, by observing...
Cette étude évalue l'impact de la densité spatiale du réseau hydrométrique sur certains calculs hydrologiques, en situation bassin versant non jaugé. Nous abordons simulation chroniques débit journalier, l'estimation module, débits crues décennale et centennale certaines caractéristiques d'étiage. Dans ce contexte, le modèle conceptuel pluie-débit GR4J a été utilisé, ainsi que méthode régionalisation basée proximité des bassins versants. La présente consiste à évaluer l'influence distance...