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Estimation of suspended sediment and dissolved solid load in a Mediterranean semiarid karst stream using log-linear models.
- Source :
-
Hydrology Research . 2019, Vol. 50 Issue 1, p43-59. 17p. - Publication Year :
- 2019
-
Abstract
- 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 (R2 = 0.98, RMSE = 0.15, and PE= ±5.4-6.6%) than the D-LLM model (R2 = 0.97, RMSE= 0.16, and PE = ±5.5-6.8%) or the D-LLM model (R2 = 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 (R2 = 0.94, RMSE= 0.34, and PE = ±25.3-61.5%), substantially improving the results of the S-LLM model. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 19989563
- Volume :
- 50
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Hydrology Research
- Publication Type :
- Academic Journal
- Accession number :
- 134748415
- Full Text :
- https://doi.org/10.2166/nh.2018.062