A5003674265- Soil erosion and sediment transport
- Hydrology and Sediment Transport Processes
- Geology and Paleoclimatology Research
- Geological formations and processes
- Hydrology and Watershed Management Studies
- Aeolian processes and effects
- Fish Ecology and Management Studies
- Landslides and related hazards
- Archaeology and ancient environmental studies
- Soil and Water Nutrient Dynamics
- Maritime and Coastal Archaeology
- Metallurgy and Cultural Artifacts
- Hydraulic flow and structures
- Flood Risk Assessment and Management
- Aquatic Invertebrate Ecology and Behavior
- Ancient and Medieval Archaeology Studies
- Ecology and biodiversity studies
- Integrated Water Resources Management
- Geological and Geophysical Studies Worldwide
- Historical Studies and Socio-cultural Analysis
- Tree Root and Stability Studies
- Historical and Archaeological Studies
- Freshwater macroinvertebrate diversity and ecology
- Water management and technologies
- French Urban and Social Studies
University of Liège
2015-2024
Laboratoire de Géographie Physique
2013-2023
Norsk Hydro (Slovakia)
2019
ABSTRACT Several methods were employed in the Ardennian rivers (Belgium) to determine depth of active layer mobilized during floods and evaluate bedload discharge associated with these events. The use scour chains has shown that is systematically less than b ‐axis average particle size ( D 50 ) elements which compose surface riffles. This indicates only a partial transport exists low magnitude floods. been evaluated by combining data obtained using technique distance covered tracers....
Abstract Accurate dating is necessary to get insight in the temporal variations sediment deposition floodplains. The interpretation of such dates however dependent on fluvial architecture floodplain. In this study we discuss three contrasting Belgian catchments (Dijle, Geul and Amblève catchment) how influences possibilities net floodplain storage. Although vertical aggradation occurred all floodplains during last part Holocene, they differ importance lateral accretion entire Holocene....
Abstract Dredging in the rivers of Ardenne is generally carried out on a smaller scale to that described literature and not conducted for commercial purposes. Extractions within river channel are made order prevent flooding; hence quantity gravel extracted limited. This study aims evaluate impact dredging resilience riverbed Semois. found south region characterized by large incised meanders, narrow floodplain, few pebble bars, numerous bedrock outcrops limited stock sediment. The bed...
We report on our first investigations into the potential of optical dating for determining rate river flood sedimentation in Ardenne region (S Belgium). Two samples collected from a recent alluvial deposit were used to investigate extent resetting different particle size fractions quartz (4-11 μm, 63-90 90-125 125-180 180-212 μm and 212-250 μm) as well polymineral fine grains. Both show satisfactory OSL IRSL characteristics. The signals grains yield an equivalent dose...
The determination of the return period frequent discharges requires definition flood peak thresholds. Unlike daily data, volume data to be processed with generalization hourly loggers or even an finer temporal resolution quickly becomes too large managed by hand. We therefore propose algorithm that automatically extracts characteristics compute partial series periods based on flow rates. Thresholds are defined through robust analysis field observation-independent obtain five independent...
Flash floods and muddy may cause severe human material damage despite their small spatial extent low occurrence. In late May 2008, a major event has affected the area of Liège. This paper describes methodology used to reconstruct hydrosedimentological parameters flood from geomorphological evidences observed in field. Bed load suspended transport rates estimated during this extreme were compared average values other Walloon rivers more specifically Ardennes Massif. The distribution temporal...
This study reviews multi-disciplinary approaches developed on active floodplains in order to formulate their evolution model and sediment budget, at different time scales, from historical hydrological event, spatial scales (floodplain, channels fluvial units). The main objective of the case studies is emphasize need for coupling tools methods analysing floodplain patterns, deposition erosion rates with regards functioning impact human activities. first part paper dedicated that help us...
This study quantifies Holocene alluvial sediment deposition in the Belgian Amblève catchment (1080 km 2 ), situated Ardennes uplands. An extended coring data set is used for a quantitative description and quantification of depositions. The floodplains fall into three main types: upper lower steep reaches. Total amounts to 32 Tg, or 0.029 Tg/km . Dating sediments using iron slag as tracer shows that on average 42% contemporary storage was accumulated during last 600 years. Radiocarbon dating...
L’analyse du transport de la charge fond plusieurs rivières massif ardennais (Belgique) par différentes techniques marquage galets (peinture, métallique, émetteurs radio) a permis d’identifier le débit critique où débute charriage. Pour les plus importantes (plus 500 km 2 ), mise en mouvement se produit à des débits légèrement inférieurs au plein bord (0,7 1 Q b qui présentent moyenne 5 11 jours an. taille intermédiaire (entre 100 et charriage un avoisinant 0,5 fois bord, avec une récurrence...
Abstract In the last few centuries, a metallurgical industry based on forges driven by water wheels developed in many European valleys. One such area is Old-Polish Industrial District (OPID) Central Poland, which one of largest this type industrial center. Metallurgical activity here from Prehistoric to modern times. The transformation technology led collapse production, and ongoing renaturation obliterated most traces former activity. Magnetic Spherule Separation method used so far Western...
Résumé Les compétences effectives de trois rivières du nord l'Ardenne (Belgique) ont pu être estimées grâce à la présence nombreuses macroscories dans leur charge fond. En effet, ces scories, rejetées par les anciens fondeurs rivières, été soumises, pendant plusieurs siècles, crues mobilisatrices. Par conséquent, elles peuvent considérées comme un marqueur représentatif compétence effective des sur une très longue période et grande distance. Ainsi, en comparant taille scories amont aval d'un...
L'impact érosif de la glace ségrégation a été analysé dans les berges d'un ruisseau ardennais (la Chavanne, Belgique), une région soumise à un climat tempéré. Sur période 19 mois (février 2008-septembre 2009), des mesures recul l'aide barres d'érosion ont montré moyen d'une dizaine centimètres. Cette érosion s'est essentiellement produite durant le janvier 2009 suite vague froid. Par suite, l'érosion par entraînement hydraulique matériaux désagrégés plus lente. D'autre part, joue rôle majeur...
Un ensemble de dix-neuf ouvrages protection berges en génie végétal a fait l'objet d'un suivi à court et long termes sur plusieurs rivières Wallonie. Les aménagements, dont la mise place remonte pour certains 20 ans, ont dans l'ensemble bien rempli leur rôle stabilisation berge, même si d'entre eux sont aujourd'hui partiellement détruits. Dans cas, l'endommagement des aménagements conduit une reprise l'érosion berge protéger. Le facteur principal dégradation est l'énergie crue destructrice....