首页|Estimation of suspended sediment and dissolved solid load in a Mediterranean semiarid karst stream using log-linear models
Estimation of suspended sediment and dissolved solid load in a Mediterranean semiarid karst stream using log-linear models
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NETL
NSTL
Iwa Publishing
Many models have been developed to predict the sediment transport in watercourses. This paper attempts to test the effectiveness of log-linear models (LLM) to estimate the suspended (S-LMM), dissolved (D-LLM), and total suspended (T-LLM) load into a Mediterranean semiarid karst stream (the Argos River basin, in southeast Spain). An assessment of the supposed validity of each model and a leave-one-out cross-validation were carried out to determine their degree of statistical robustness. The T-LLM model showed higher prediction accuracy (R-2 = 0.98, RMSE = 0.15, and PE = +/- 5.4-6.6%) than the D-LLM model (R-2 = 0.97, RMSE = 0.16, and PE = +/- 5.5-6.8%) or the D-LLM model (R-2 = 0.77, RMSE = 0.71, and PE = +/- 101-493%). In addition, different model variants, according to two flow patterns (FP1 = base flow and FP2 = rising water level), were developed. The FP2-SLLM model provided a very good fit (R-2 = 0.94, RMSE = 0.34, and PE = +/- 25.3-61.5%), substantially improving the results of the S-LLM model.
NETL
NSTL
Iwa Publishing
