Title:
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Sediment transport and dispersal in the nearshore of “flash-flood” rivers
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Author:
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Grifoll Colls, Manel; Gracia Garcia, Vicente; Guillén Aranda, Jorge; Espino Infantes, Manuel; Sánchez-Arcilla Conejo, Agustín
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Hidràulica, Marítima i Ambiental; Universitat Politècnica de Catalunya. LIM/UPC - Laboratori d'Enginyeria Marítima |
Abstract:
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River sediment dispersal on the near-shore of “flash-flood” rivers is investigated using a coupled wave-current-sediment transport model. Besòs and Llobregat rivers (short and mountainous rivers in NW Mediterranean Sea, near to Barcelona City) are used as examples to study the sediment transport under “flash-flood” regime. The modeling system COWAST which includes the coupling between the water circulation model ROMS and the wave model SWAN, is applied to assess the sediment dispersal mechanisms and deposition in the coastal area off the two river mouths. Preferential depositional areas such as mud-belts were identified from the simulations. The sediment dispersal pattern obtained by the model agrees with observational measurments. Complementary numerical simulations revealed sorting of sediment grain size in the cross-shelf direction. |
Abstract:
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Peer Reviewed |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria hidràulica, marítima i sanitària::Ports i costes -Flash floods -River sediments -sediment transport -river dispersal -mud-belt -coupling -Inundacions -- Models matemàtics -Sediments fluvials -- Transport |
Rights:
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Document type:
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Article - Published version Conference Object |
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