TY  - JOUR
A1  - Park, Jungsu
A1  - Batalla, Ramon J.
A1  - Birgand, Francois
A1  - Esteves, Michel
A1  - Gentile, Francesco
A1  - Harrington, Joseph R.
A1  - Navratil, Oldrich
A1  - Lopez-Tarazon, José Andrés
A1  - Vericat, Damia
T1  - Influences of Catchment and River Channel Characteristics on the Magnitude and Dynamics of Storage and Re-Suspension of Fine Sediments in River Beds
JF  - Water
N2  - Fine particles or sediments are one of the important variables that should be considered for the proper management of water quality and aquatic ecosystems. In the present study, the effect of catchment characteristics on the performance of an already developed model for the estimation of fine sediments dynamics between the water column and sediment bed was tested, using 13 catchments distributed worldwide. The model was calibrated to determine two optimal model parameters. The first is the filtration parameter, which represents the filtration of fine sediments through pores of the stream bed during the recession period of a flood event. The second parameter is the bed erosion parameter that represents the active layer, directly related to the re-suspension of fine sediments during a flood event. A dependency of the filtration parameter with the catchment area was observed in catchments smaller than 100 km(2), whereas no particular relationship was observed for larger catchments (>100 km(2)). In contrast, the bed erosion parameter does not show a noticeable dependency with the area or other environmental characteristics. The model estimated the mass of fine sediments released from the sediment bed to the water column during flood events in the 13 catchments within 23% bias.
KW  - bed erosion
KW  - catchment area
KW  - filtration
KW  - sediment accumulation
KW  - sediment bed fluidization
KW  - sediment re-suspension
Y1  - 2019
U6  - https://doi.org/10.3390/w11050878
SN  - 2073-4441
VL  - 11
IS  - 5
PB  - MDPI
CY  - Basel
ER  -