Reliability of an expert-based runoff and erosion model : application of STREAM to different environments
and discussion. In conclusion, STREAM is a reliable model providing satisfactory runoff and erosion predictions in the regions where hortonian overland flow dominates. Nevertheless, an adaptation of decision rules based on local multi-scale (plot, field
The STREAM model, which was developed in Normandy (France) has been applied in 2 Belgian catchments having a similar soil texture, as well as in a catchment of southern France differing by soil, land use and climate characteristics. Results
, catchment) data is needed, before running the model. STREAM can then serve as a decision support tool to design for instance flood control measures.
Alberta ; Canada ; Environmental management ; Fire ; Meltwater ; Rocky Mountains ; Sediment budget ; Slope gradient ; Soil erosion ; Streamflow ; Water quality ; Watershed
Seven small watersheds with various levels of land disturbance (burned, post-fire salvage logged, unburned) were instrumented and monitored for 4 years to measure stream discharge, sediment concentration, and sediment yields for a range of dominant
flow periods characteristic of the region (baseflow, spring melt, and stormflow). Results and discussion. Because of increases in wilfire frequency and severity over recent decades, understanding the rage of impacts from both wildfire and post
Carrying capacity ; Digital elevation model ; England ; Experimentation ; Fluvial dynamics ; Grain size distribution ; Gravel ; River bed ; Stream ; Streamflow ; Topography ; United Kingdom
beds offers an improved way of investigating intragravel flow and sediment-water interface exchange processes in gravel-bed rivers at a laboratory scale.
Bank erosion ; Channel geometry ; Flood ; Freeze-thaw cycle ; Gravel ; Meander ; Model ; Numerical model ; Pennsylvania ; River bed ; Stream ; United States of America
In this paper, a model is presented for the erosion of cohesive river bank profiles caused by single high flows. The model is based on extensive observations of eroding banks obtained between November 1985 and March 1988, along a meander bend
Ecology ; Fish ; Germany ; Grain size distribution ; Habitat ; Sedimentology ; Stream
for these species. More than 3/4 of the spawning sites studied were located directly upstream from or within a riffle and were close to slow-flowing areas suitable for use as retreats. Only 20% of the spawning sites lay within a typical pool-riffle sequence. About
of inundation, as well as the velocities and direction of the water flow. These parameters, when combined with the information on the height of buildings and their value, can give an approximation of flood costs in various different scenarios. The spatial
Alluvial channel ; Australia ; Floodplain ; LANDSAT ; Meander ; New South Wales ; Palaeogeomorphology ; Quaternary ; Remote sensing ; River regime ; Stream
rivers : greater discharges, longer meander wavelengths and they flowed along different courses to the modern rivers. This study supports other recent investigations of the geomorphology and chronology of the Namoi River floodplain that showed
-dams within the confined headwaters of steep seasonally-flowingstreams (fiumaras) in Calabria, southern Italy, on active channel form, sediment calibre, and the richness, cover and development of riparian vegetation. Discussion of the results obtained
Bank erosion ; Bridge ; Cartography ; Ecosystem ; Floodplain ; Geographical information system ; Habitat ; Hydrodynamics ; Iowa ; Photogrammetry ; Runoff ; Stream ; United States of America ; Watershed
and floodplain) and image processing algorithms to characterize the flow. Riverside images of a riverine area are decomposed into quasi-planar areas and ortho-rectified and re-assembled to obtain a panoramic ortho-view of the area of interest. Morphological
features of interest (such as river bank positions, flood plain edges, mud deposits, vegetation and erosion patterns) are then identified on the ortho-view and mapped digitally. Image sequences of the river flow are recorded, allowing a surface velocity
Applied ecology ; Biogeomorphology ; Flood ; Floodplain ; France ; Habitat ; Hydrodynamics ; Languedoc-Roussillon ; Pyrénées-Orientales ; Riparian vegetation ; River bed ; Sediment transport ; Stream
of the vegetation biovolume intercepting water flow. Three different biogeomorphic functions, all related to the concept of ecosystem engineering, were identified. Overall, this study based on empirical data points to the fundamental importance of sediment flow
Aerial photography ; Alluvial channel ; Bank erosion ; Carrying capacity ; Channel geometry ; Discharge ; Flood ; Friuli-Venezia Giulia ; Geographical information system ; Gravel ; Italy ; Photointerpretation ; Sediment transport ; Stream ; Tracer
morphological units (channels, bars, islands) and a range of magnitude of morphological activity from the threshold discharges for gravel transport and minor bar modification up to flows causing major morphological changes. The study was conducted