Introduction; THEORETICAL ADVANCES; 1. Hydraulic modelling in hydrology and geomorphology: a review of high resolution approaches; 2. Modelling wetting and drying effects over complex topography; 3. The 2-D transport module SUBIEF: applications to sediment transport and water quality processes; 4. Using lagrangian particle saltation observations for bedload sediment transport modelling; HYDRAULIC MODELLING; 5. High resolution two-dimensional spatial modelling of flow processes in a multi-thread channel; 6. Numerical modelling of separated flow in river bends: model testing and experimental investigation of geometric controls on the extent of flow separation at the concave bank; 7. Investigation of controls on secondary circulation in a simple confluence geometry using a three-dimensional model; 8. Flood routing based on diffusion wave equation using mixing cell method; 9. Investigating two-dimensional, finite element predictions of flood plain inundation using fractal generated topography; 10. Integrating remote sensing observations of flood hydrology and hydraulic modelling; HYDROLOGICAL MODELLING; 11. An integrated physically-based model for arid region flash flood prediction capable of simulating dynamic transmission loss; 12. Modelling the spatial variability in floodplain soil contamination during flood events to improve chemical mass balance estimates; 13. Kinematic wave modelling of vertical movement of snowmelt water through a snowpack; 14. Kinematic wave modelling of saturated basal flow in a snowpack; 15. The introduction of runoff routing into large-scale hydrological models; GEOMORPHOLOGICAL MODELLING; 16. Numerical Modelling of floodplain hydraulics and suspended sediment transport and deposition; 17. Modelling with adjustment in straight alluvial channels; 18. Morphological modelling of rivers with erodible banks;.