inscription
PORTAIL D'INFORMATION GÉOGRAPHIQUE

Résultats de la recherche (39 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Correction factors for estimating suspended sediment export from loess catchments
  • Belgium ; Grain size distribution ; Loess ; Sediment transport ; Soil erosion ; Suspended load ; Watershed
  • This study focuses on problems related to estimating the exact exported suspended sediment quantity and quality from flow-proportional samples taken at a fixed height at the outlet of a small, agricultural catchment in central Belgium
  • . The application of 2 correction factors, one for the water depth and one for the concentration gradient, leads to a reduction of the estimated total sediment export. This paper therefore emphasizes that point sampling of suspended sediment is biased
  • 2001
  • Danube ; Discharge ; Eighteenth Century ; Fluvial hydrology ; Nineteenth Century ; River mouth ; Sediment budget ; Sediment load ; Stream ; Suspended load ; Twentieth Century
  • 2001
  • Geochronology ; Grain size distribution ; Holocene ; Model ; Palaeohydrology ; Quaternary ; Runoff ; Sedimentology ; Suspended load ; Sweden ; Varves
  • The article presents a simple sediment deposition model, based on current knowledge of the processes of transport and deposition of suspended material. It indicates possibilities of interpreting flow conditions from grain-size distributions at 2
  • 2001
  • Current ; Fluvial dynamics ; Fluvial hydrology ; Grain size distribution ; Mathematical model ; Model ; Sediment load ; Spatial distribution ; Suspended load
  • 2001
  • Danube ; Delta ; Discharge ; Human impact ; Interannual variability ; River mouth ; Runoff ; Sediment load ; Suspended load
  • 2001
  • Asia ; Regionalization ; River mouth ; Runoff ; Sediment load ; Spatial variation ; Stream ; Suspended load ; Watershed ; Zonation
  • 2001
  • Hydrology ; Impact ; Sedimentation ; Suspended load ; Theory ; Turbulence
  • 2001
  • Hydrodynamics ; Impact ; Mathematical model ; Model ; Runoff ; Sediment transfer ; Suspended load ; Turbulence
  • 2001
  • Biocenosis ; Correlation ; European part of Russia ; Kaluga ; Seasonal variability ; Stream ; Suspended load ; Taxonomy
  • 2001
  • Belgium ; Flanders ; Leuven ; Model ; Regression analysis ; Sediment budget ; Sedimentation rate ; Soil erosion ; Spatial scale ; Suspended load ; Watershed
  • 2001
  • Amur River ; Asian part of Russia ; Bank erosion ; Coastal environment ; Floodplain ; Runoff ; Russian Far East ; Sediment load ; Slope ; Stream ; Suspended load ; Valley
  • 2001
  • Arid area ; Dam ; Flood ; Morocco ; Sediment load ; Sediment transport ; Semi-arid area ; Silting ; Soil erosion ; Suspended load ; Watershed
  • 2001
  • Aerial photography ; Bank erosion ; Channel geometry ; Flood ; Floodplain ; France ; Garonne ; Isotope analysis ; Riparian vegetation ; Sedimentation rate ; Stream ; Suspended load ; Twentieth Century
  • 2001
  • Central Europe ; Eastern Europe ; Europe ; Fluvial erosion ; Fluvial processes ; Gully erosion ; Human impact ; Northern Europe ; Soil erosion ; Southern Europe ; Stream flow ; Suspended load ; Western Europe ; Years 1950-59 ; Years 1990-99
  • 2001
  • British Columbia ; Canada ; Lacustrine sediment ; Model ; Mountain ; Sediment budget ; Sediment transfer ; Sedimentology ; Suspended load ; Watershed
  • 2001
  • Basse-Normandie ; Bay ; Coastal environment ; Coastal protection ; Dam ; Estuary ; France ; Historical mapping ; Hydraulic works ; Impact ; Manche ; Polder ; Suspended load
  • 2001
  • Canada ; Fluvial hydrology ; Geomorphology ; Northwest Territories ; Periglacial features ; Precipitation ; River basin ; Sedimentology ; Stream flow ; Suspended load
  • 2001
  • Coastal environment ; Convection ; Diffusion ; Field experiment ; Forecast ; Impact ; Model ; Sediment transport ; Suspended load ; Wave
  • 2001
  • Calcium loading of quartz sandstones during construction : implications for future decay
  • Damage to quartz sandstones in polluted urban environments is frequently associated with the presence of calcium salts, especially gypsum. The aim of this study is to examine the possibility that non-calcareous quartz sandstones can be loaded
  • with calcium from lime mortars during construction, and the potential for later conversion of this into calcium salts with a polluted environment. Construction of test walls show that this loading does occur, but that is restricted. Of possibly greater
  • 2001
  • Empirical predictors of annual bed load travel distance, and implications for salmonid habitat restoration and protection
  • This paper examines rates of bed load movement through stream channels by relating annual travel distance to simple basin or channel characteristics such as reach-averaged basal shear stress, drainage area or bankfull channel width. The intent
  • of this analysis is to identify simple estimators of sediment movement rates that are less difficult and expensive to apply than commonly cited bed load transport equations. These relationships can be used to estimate how quickly sediment moves through a reach
  • 2001