The setting of mud flocs in the Dollard estuary, The Netherlands
Morphological changes of estuarine channels and tidal flats depend on erosion, sediment transport and deposition. This thesis focuses on a smaller part of this system : the settling of mud flocs in an estuary. The research is based on measurements
of the size and settling velocity of mud flocs in the Dollard estuary on different time and spatial scales. It is concluded that turbulent shear and residence times play an essential role in flocculation dynamics. Furthermore it is showed that biological
Can flocs and water stable soil aggregates be differentiate within fluvial systems ?
This paper uses a number of particle structural characterizations and behavioral assessments in an attempt to differentiate flocs formed in the water column from water stable soil aggregates formed in the terrestrial environments but transported
to the River Dart in Devon, by overland flow. The aim of this paper is to explore the potential for using floc/aggregate fractal dimensions, sphericity, density, porosity, size and settling velocity to differenciate these particle types. The ability
to determine the relative proportion of flocs and aggregates in suspension will clearly be important for future development of sediment and contaminant transport modelling.
Base de données ; Cartographie automatique ; Communication ; Dynamique spatiale ; Ficus ; Flocc ; GIP RECLUS ; Généralités sur la géographie ; Géographie humaine ; Information ; Localisation ; Maison de la Géographie ; Recherche ; Système
in The Netherlands. The AA. compare the measurement results of the LISST-ST with other sensors and manual samples. They present results on floc sizes, SSCs, settling velocities and sedimentation fluxes and discuss their relations with discharge and river