Mots-clés
Analyse de régression ; Analyse quantitative ; Bassin-versant ; Belgique ; Bilan sédimentaire ; Erreur ; Holocène ; Méthode de Monte Carlo ; Méthodologie ; Plaine d'inondation ; Transport sédimentaire ; Zone tempéréeBelgium ; Error ; Floodplain ; Holocene ; Methodology ; Monte Carlo analysis ; Quantitative analysis ; Regression analysis ; Sediment budget ; Sediment transport ; Temperate zone ; WatershedAnálisis cuantitativo ; Análisis de regresión ; Balance sedimentario ; Bélgica ; Cuenca hidrográfica ; Error ; Holoceno ; Llanura de inundación ; Metodología ; Método de Monte Carlo ; Transporte sedimentario ; Zona templadaQuantification of alluvial sediment storage in contrasting environments : methodology and error estimation
Auteur(s) et Affiliation(s)
NOTEBAERT, B.
Dep. Earth and Environmental Sciences, K.U., Leuven, Belgique
VERSTRAETEN, G.
Dep. Earth and Environmental Sciences, K.U., Leuven, Belgique
GOVERS, G.
Dep. Earth and Environmental Sciences, K.U., Leuven, Belgique
POESEN, J.
Dep. Earth and Environmental Sciences, K.U., Leuven, Belgique
Description :
In this study the total Holocene floodplain deposition was quantified for 3 contrasting catchments in Belgium, characterized by a different fluvial architecture and Holocene deposits thickness. Several methods were used to delineate the floodplain, and combined with different amounts of field data in Monte Carlo type simulations. The results show that the method used to delineate the floodplains is responsible for the largest uncertainties on the results, while the number of used field data has less influence. The results show that inter- and intra-catchment variability in floodplain deposition varies largely between the studied catchments. Based on the available data, spatial patterns of floodplain sediment storage can be explained by a combination of sediment delivery to the fluvial system and the sediment transport capacity of the fluvial system, which depends on floodplain slope and runoff discharge peaks.
Type de document :
Article de périodique
Source :
Catena (Giessen), issn : 0341-8162, 2010, vol. 82, n°. 3, p. 169-182, nombre de pages : 14, Références bibliographiques : 43 ref.
Date :
2010
Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena
Langue :
Anglais
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)