A5061577507- Meteorological Phenomena and Simulations
- Flood Risk Assessment and Management
- Precipitation Measurement and Analysis
- Climate variability and models
- Hydrology and Drought Analysis
- Hydrology and Watershed Management Studies
- Cryospheric studies and observations
- Soil Moisture and Remote Sensing
- Landslides and related hazards
- Disaster Management and Resilience
- Water-Energy-Food Nexus Studies
- Integrated Energy Systems Optimization
- French Urban and Social Studies
- Fire effects on ecosystems
- Hydrology and Sediment Transport Processes
- Plant Water Relations and Carbon Dynamics
- Soil erosion and sediment transport
- Water resources management and optimization
- Urban Stormwater Management Solutions
- Electric Power System Optimization
- Hydrological Forecasting Using AI
- Atmospheric aerosols and clouds
- Geophysics and Gravity Measurements
- Energy Load and Power Forecasting
- Energy and Environment Impacts
Centre National de la Recherche Scientifique
2015-2024
Université Grenoble Alpes
2015-2024
Institut des Géosciences de l'Environnement
2016-2024
Institut polytechnique de Grenoble
2012-2023
Institut de Recherche pour le Développement
2009-2023
Science et Ingénierie des Matériaux et Procédés
2020
Institut de Chimie Moléculaire de Grenoble
1983-2018
Sciences pour l'Environnement
2017
Laboratoire de Glaciologie et Géophysique de l’Environnement
2005-2016
Université Joseph Fourier
1999-2013
Abstract The Cévennes–Vivarais Mediterranean Hydrometeorological Observatory (OHM-CV) is a research initiative aimed at improving the understanding and modeling of intense rain events that frequently result in devastating flash floods southern France. A primary objective to bring together skills meteorologists hydrologists, modelers instrumentalists, researchers practitioners, cope with these rather unpredictable events. In line previously published flash-flood monographs, present paper aims...
Many methods have been proposed and applied individually to rainfall fields in order estimate point or average values at ungauged sites. This paper reviews some of the usual as well more recent techniques. They are classified according their fundamental principles, optimality criteria, practical aspects. Some theoretical developments, mostly for statistically based techniques, offered, aspects mainly directed particular case fields. A study is presented a region with particularly high...
The issue of the accuracy areal rainfall estimation is discussed through a case study on catchment area in Cévennes region France. basic tool for analysis “scaled error variance” which computed from scaled climatological variogram model field. We show how this variance provides theoretical criterion to compare that can be expected with three linear estimators (Thiessen, spline, and kriging) various networks' densities. To support methodology an experimental validation computation performed,...
A general phenomenological formulation for drop size distribution (DSD), written down as a scaling law, is proposed. It accounts all previous fitted DSDs. As main implication of the expression proposed, integral rainfall variables are related by power functions and agree with experimental evidence. Additional consequences also analyzed. From this there follows methodology data in unique plot, leading to more robust fits DSD. An illustrative example on real provided.
This study describes an experimental system for making continuous river discharge measurements using real-time, image-based, noncontact technologies. The uses particle image velocimetry (PIV) to estimate displacements of surface flow tracers on recorded images. velocity-area method is then applied at a cross section known bathymetry. has been operational since August 2004, estimates site the Iowa River. Based preliminary results from its first 23 months operation, authors identify...
The vertical variability of reflectivity in the radar beam is one main sources error estimating rainfall intensity. This variability, which has several origins, characterized globally by a function called "vertical profile reflectivity." impact this on measurement quantified incorporating equation. It then possible to specify influence characteristics radar, distance, and errors rain rates at ground level. A method for determining described. procedure requires use images from least two...
Implementation of flood warning systems and community self-help programs is one the most effective ways to mitigate flash-flood risk. In many instances, these are only affordable sustainable mitigation approaches. Unfortunately, still hampered by changes in societal needs our limited knowledge atmospheric hydrologic generating mechanisms this type flood. On hand, has traditionally focused on localized targets for protection communities management hydraulic reservoirs. Given general...
A simulation procedure has been developed for use in predetermining the expected quality of rain-rate estimates that a given weather radar system operating mountainous region may obtain over hydrologic catchment. This first application what is referred to as "hydrologic visibility" concept focuses on quantification error resulting from effects ground clutter, beam blockage, and vertical profile reflectivity (VPR). The assessment impact space–time structure terms discharge at catchment outlet...
A geostatistical approach to areal rainfall estimation using raingage and radar measurements is described. The so-called cokriging method used obtain a linear estimator of ground-level depths by combining gage data under unbiasedness optimality constraints. statistical inference the spatial structure these two kinds (required determine system discussed in multi- single-realization context. simplified version then proposed more tractable for practical applications. validation procedure based...