A5014305947- Hydrology and Sediment Transport Processes
- Soil erosion and sediment transport
- Hydrology and Watershed Management Studies
- Flood Risk Assessment and Management
- Fish Ecology and Management Studies
- Cryospheric studies and observations
- Freshwater macroinvertebrate diversity and ecology
- Aquatic Invertebrate Ecology and Behavior
- Remote Sensing and LiDAR Applications
- French Urban and Social Studies
- Landslides and related hazards
- Transboundary Water Resource Management
- Aquatic Ecosystems and Phytoplankton Dynamics
- Geological formations and processes
- Hydropower, Displacement, Environmental Impact
- Hydrological Forecasting Using AI
- Soil and Water Nutrient Dynamics
- Water Quality Monitoring Technologies
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Soil Moisture and Remote Sensing
- Land Use and Ecosystem Services
- Dam Engineering and Safety
- Remote-Sensing Image Classification
- Tree-ring climate responses
- Automated Road and Building Extraction
Environnement, ville, société
2009-2024
Centre National de la Recherche Scientifique
2012-2024
Université Claude Bernard Lyon 1
2011-2024
Université Jean Monnet
2024
Politecnico di Milano
2018-2023
École Normale Supérieure de Lyon
2014-2023
Bioengineering Center
2020
University of Florence
2013-2017
Earth University
2015
ABSTRACT The rivers of the world are undergoing accelerated change in Anthropocene, and need to be managed at much broader spatial temporal scales than before. Fluvial remote sensing now offers a technical methodological framework that can deployed monitor processes work assess trajectories Anthropocene. In this paper, we review research investigating past, present future fluvial corridor conditions using consider emerging challenges facing riparian research. We introduce suite methods...
There are millions of river barriers worldwide, ranging from wooden locks to concrete dams, many which form associated impoundments store water in small ponds or large reservoirs. Besides their benefits, there is growing recognition important environmental and social trade-offs related these artificial structures. However, global datasets describing characteristics geographical distribution often biased towards particular regions specific applications, such as hydropower dams affecting fish...
Abstract Riparian vegetation actively interacts with fluvial systems affecting river hydrodynamics, morphodynamics and groundwater. These interactions can be coupled because both hydromorphology (i.e. the combined scientific study of hydrology geomorphology) involve dynamic processes similar temporal spatial scales. To predict assess consequences restoration measures, maintenance operations or human pressures in rivers, managers planners may wish to model these considering different...
The Balkan region has some of the best conserved rivers in Europe, but is also location ~3000 planned hydropower dams that are expected to help decarbonise energy production. A conflict between policies promote renewable and those prioritise river conservation ensued, which can only be resolved with reliable information. Using ground-truthed barrier data, we analysed extent current longitudinal fragmentation simulated nine dam construction scenarios varied depending on number, size dams....
Several decades of human activities have severely impacted braided rivers worldwide. Despite their widespread disappearance, some remnant sectors are still held in the French Rhone basin, mainly south-east France. In this paper, we analyse evolutionary pattern 53 reaches, focusing on active channel width and island patterns, by comparing aerial photographs from 1950s 2000s (Institut Géographique National). Because different patterns exist (e.g. bar versus island-braided), tested relative...
Abstract An estimated 76% of global stream area is occupied by channels with widths above 30 m. Sentinel‐2 imagery resolutions 10 m could supply information about the composition river corridors at national and scales. Fuzzy classification models that infer sub‐pixel further be used to compensate for small channel imaged spatial resolution. A major challenge this approach acquisition suitable training data useable in machine learning can predict land‐cover type from image radiance values. In...
Abstract A comprehensive understanding of river dynamics requires the grain size distribution bed sediments and its variation across different temporal spatial scales. Several techniques are already available for assessment based on field remotely sensed data. However, existing methods only applicable small scales short time Thus, operational measurement riverbed at catchment scale remains an open problem. solution could be use satellite images as main imaging platform. this would entail...
Abstract This paper uses imagery captured by ultra-light and unmanned aerial vehicles (ULAVs) in combination with satellite remote sensing to explore vegetation development on braided reaches the Southern Eastern French Alps. Findings demonstrate that while asexual reproduction processes dominate, sexual through seed dissemination wind transport play a significant role during periods of low flow following large floods. progressive establishment leads general trend river corridor narrowing....
Abstract. The district of the France Rhône basin is characterised by several braided reaches, preserved from widespread disappearing occurred in 20th century. Even if overall pattern evolving through a general river narrowing, some reaches have shown to be still active and widened. preliminary results suggest that differences width could related factors, such as high magnitude low frequency floods, geographical position catchment which influences bedload delivery conditions vegetation...
Global water occurrence data derived from satellite imagery provide critical insights into surface dynamics, informing science and management of key issues like climate change, scarcity, biodiversity loss. The Landsat-based Surface Water (GSW) dataset (Pekel et al., 2016) has notably provided an important archive the global areas its changes over time. However, 30-m resolution limits applicability for smaller river systems. Since launch Copernicus Sentinel-2 (S2) program, higher-resolution...
Abstract Dams, reservoirs, and other water management infrastructure provide benefits, but can also have negative impacts. Dam construction removal affects progress toward the UN sustainable development goals at local to global scales. Yet, globally-consistent information on location characteristics of these structures are lacking, with often highly localised, fragmented, or inaccessible. A freely available, curated, consistent, regularly updated database existing dams instream is needed...
River rehabilitation and ecological engineering are becoming critical issues for improving river status when habitats connectivity have been altered by human pressures. Amongst the range of existing options, some specifically focus on rebuilding fluvial forms physical processes. The aim this contribution is to illustrate how geomorphological expertise process-based thinking contribute success. This semantic intended feed debate, particularly concerning design actions proposed references...
Summary River floodplains with their constituent biodiversity are among the most endangered ecosystems worldwide. These systems conceptualised as mosaics of aquatic and terrestrial patches at different successional stages colonised by a wide range aquatic, semi‐aquatic species. In three reaches in active corridor French Mediterranean braided river, we tested whether community structure composition ground‐dwelling arthropods varied across mosaic patches, identified some underlying mechanisms....
Summary Different pressures often co‐occur in rivers and act simultaneously on important processes variables. This complicates the diagnosis of hydromorphological alterations hampers design effective restoration measures. Here, we present a conceptual meta‐analysis that aims at identifying most relevant variables controlling ecological degradation restoration. For purpose, used fuzzy cognitive mapping based schemes were created according to 675 scientific peer‐reviewed river hydromorphology...