A5058707041- Hydrology and Drought Analysis
- Precipitation Measurement and Analysis
- Hydrology and Watershed Management Studies
- Flood Risk Assessment and Management
- Climate variability and models
- Parallel Computing and Optimization Techniques
- Meteorological Phenomena and Simulations
- Interactive and Immersive Displays
- Cloud Computing and Remote Desktop Technologies
- CCD and CMOS Imaging Sensors
- Soil Moisture and Remote Sensing
- Particle Detector Development and Performance
- Nuclear Physics and Applications
UK Centre for Ecology & Hydrology
2022
Université Grenoble Alpes
2017-2020
Institut des Géosciences de l'Environnement
2017-2020
Institut de Recherche pour le Développement
2017-2020
Centre National de la Recherche Scientifique
2017-2020
Institut polytechnique de Grenoble
2017-2020
Observatoire des Sciences de l'Univers de Grenoble
2018
Westinghouse Electric (United States)
1993
Hewlett-Packard (United States)
1989
In the West African Sahel, two paradoxical hydrological behaviors have occurred during last five decades. The first paradox was observed 1968–1990s ‘Great Drought’ period, which runoff significantly increased. second appeared subsequent period of rainfall recovery (i.e., since 1990s), coefficient continued to increase despite general re-greening Sahel. This paper reviews and synthesizes literature on drivers these behaviors, focusing recent works in Sahelo/Sudanian strip, upscaling processes...
Core Ideas AMMA‐CATCH is a long‐term critical zone observatory in West Africa. Four sites sample the sharp ecoclimatic gradient characteristic of this region. Combined measurements meteorology, water, and vegetation dynamics began 1990. Intensification rainfall hydrological cycles observed. The strong overall re‐greening may hide contrasted changes. Africa region fast transition from climate, demography, land use perspectives. In context, African Monsoon Multidisciplinary Analysis...
The West African climate is unique and challenging to reproduce using standard resolution models as a large proportion of precipitation comes from organised deep convection. For the first time, regional 4.5 km convection permitting simulation was performed on pan-African domain for period 10 years (1997–2006). (CP4A) compared with 25 × 40 convection-parameterised model (R25) over Africa. CP4A shows increased mean precipitation, which results in improvements mature phase monsoon but...
Abstract. Urbanization resulting from sharply increasing demographic pressure and infrastructure development has made the populations of many tropical areas more vulnerable to extreme rainfall hazards. Characterizing distribution in a coherent way space time is thus becoming an overarching need that requires using appropriate models intensity–duration–frequency (IDF) curves. Using 14 series 5 min records collected Senegal, comparison two generalized value (GEV) scaling carried out, selection...
In Sahelian countries, a vast number of people are still affected every year by flood despite the efforts to prevent or mitigate these catastrophic events. This phenomenon is exacerbated incessant population growth and increase extreme natural Hence, development management strategies such as hazard mapping Early Warning Systems has become crucial objective for nations. study presents comprehensive assessment Nigerien reach Sirba River, main tributary Middle Niger River. Hazard thresholds...
Abstract Stochastic rainfall generators aim to reproduce the main statistical features of at small spatial and temporal scales. The simulated synthetic series are recognized as suitable for use with impact analysis in water, agricultural, ecological management. Convection-driven precipitation, dominant certain regions world such intertropical belt regions, presents properties that require specific consideration when modeling: (i) strong intermittency, (ii) high variability intensities within...
Abstract. Urbanization resulting from a sharply increasing demographic pressure and the development of infrastructures have made populations many tropical areas more vulnerable to extreme rainfall hazards. Characterizing distribution in coherent way space time is thus becoming an overarching need that requires using appropriate models IDF curves. Using 14 series 5-min records (aggregated at basis time-step 1 h) collected Senegal, comparison two GEV&scaling carried out, leading adopt...
Graphics pipelines are quickly evolving to support multitasking workstations. The driving force behind this evolution is the window system, which must provide high performance graphics within multiple windows, while maintaining interactivity. virtual system presented by [7] provides a clean solution problem of context switching hardware between processes, but does not solve all problems associated with sharing pipelines.The primary difficulty in accelerator pipeline latency encountered...
Intensification of the hydrological cycle resulting from climate change in West Africa poses significant risks for region's rapidly urbanising cities, but limited research on flood risk has been undertaken at urban domain scale. Furthermore, conventional models are unable to realistically represent type intense storms which dominate African monsoon. This paper presents a decision-first framing co-production climate-hydrology-flooding modelling chain, linking scientists working...
Graphics pipelines are quickly evolving to support multitasking workstations. The driving force behind this evolution is the window system, which must provide high performance graphics within multiple windows, while maintaining interactivity. virtual system presented by [7] provides a clean solution problem of context switching hardware between processes, but does not solve all problems associated with sharing pipelines.The primary difficulty in accelerator pipeline latency encountered...