Africa; and (4) alluvial and bedrock-controlled rivers in the southwest USA. Other developments across the suite of geochronological techniques are also contributing to improved understanding of arid landscape dynamics and the links with late Cenozoic
modelling of this bifurcation with a gravel-sand bed and a meandering planform. Successive computations have shown the importance of upstream approach conditions, the necessity to include physical mechanisms for grain sorting and alluvial roughness
-by-region for rill, interrill and alluvial areas, based on logical and hydro-geomorphological principles. Additional DEMs were constructed by combining multi-source, modified data. Models were evaluated by comparison with d-GPS reference data
were used to map sediment deposits, quantify aggradation rates, and identify processes (in-channel and overbank fluvial deposition, direct hillslope input, beaver pond filling, peat accumulation) creating alluvial fill within the wetland. Results
by a coastal lagoon with marine communication. Especially since the Iron Age, an activation of the alluvial processes is recorded establishing paleogeographical changes in the lagoons. The swampy conditions remained until the Modern Age. Agricultural expansion
as well as in alluvial river talik(s). The isotopic analyses show 3 groundwater chemistry groups and variability in surface water chemistry. The variations in water chemistry are related to differences in the rocks exposed in the recharge area. River
and sediment thickness. Between the Molid and Timişeşti localities, large fossil trunks of trees are exposed in the riverbanks. Six wood samples were selected for radiocarbon absolute dating. The thickness of the alluvial sediments above the sampled fossil
is highly seasonal, and channel adjustments between seasons are dramatic. During the fall 2009 seasonal transition, 7.6 km of channel incised and armored, carving a 2-3 m deep channel on the upper alluvial fan. Bedload transport rates measured in the August
En fonction du dynamisme du système alluvial étudié, Les AA. dégagent 3 niveaux d'action de restauration. Pour les rivières dynamiques d'un point de vue morphologique, il est envisageable de reconstituer un équilibre morphologique cohérent à large