Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Reconstructing historic reservoir sedimentation rates using data-based mechanistic modelling.
AU - Rowan, J. S.
AU - Price, L. E.
AU - Fawcett, C. P.
AU - Young, Peter C.
PY - 2001
Y1 - 2001
N2 - This paper reports an application of data-based mechanistic (DBM) modelling to the study of reservoir sedimentation. A detailed monitoring programme in the catchment of the Wyresdale Park reservoir was used to calibrate a two component DBM sedimentation model. The first component was a non-linear rainfall to suspended sediment load (SSL, kg s−1) model, the second dealt with sediment routing and the trap efficiency of the reservoir. Daily precipitation data for the period 1911–1996 were used to simulate the sedimentation history of the reservoir. The synthetic accretion sequence evidences the effects of climatic forcing and was compared to lake-bed sediment cores independently dated using 137Cs. The synthetic stack showed general agreement with the observed accretion data. Departures in model performance most likely reflect non-stationarity in the system due to local changes in land use and reservoir regulation.
AB - This paper reports an application of data-based mechanistic (DBM) modelling to the study of reservoir sedimentation. A detailed monitoring programme in the catchment of the Wyresdale Park reservoir was used to calibrate a two component DBM sedimentation model. The first component was a non-linear rainfall to suspended sediment load (SSL, kg s−1) model, the second dealt with sediment routing and the trap efficiency of the reservoir. Daily precipitation data for the period 1911–1996 were used to simulate the sedimentation history of the reservoir. The synthetic accretion sequence evidences the effects of climatic forcing and was compared to lake-bed sediment cores independently dated using 137Cs. The synthetic stack showed general agreement with the observed accretion data. Departures in model performance most likely reflect non-stationarity in the system due to local changes in land use and reservoir regulation.
U2 - 10.1016/S1464-1909(01)85018-8
DO - 10.1016/S1464-1909(01)85018-8
M3 - Journal article
VL - 26
SP - 77
EP - 82
JO - Physics and Chemistry of the Earth Part B: Hydrology, Oceans and Atmosphere
JF - Physics and Chemistry of the Earth Part B: Hydrology, Oceans and Atmosphere
SN - 1464-1909
IS - 1
ER -