Evaluation of Unit Stream Power Approach for Predicting Total Load Transport Rate using River Dataset
Keywords:
Yang, River data, comparison, statistical analysis, total sediment transport rateAbstract
The present paper discusses the detailed analysis to check the applicability of Yang (1973) Unit Stream Power approach for river data. Different statistical parameters have been evaluated such as Mean Percentage error (MPE), Root Mean Square Error (RMSE), Discrepancy Ratio (DR) and Inequality Coefficient (U). Graphical comparisons are done to check the performance and variations for selected data sets. Score of the discrepancy ratio in terms of percentages are calculated for comparison within the range 0.5 to 2.0. Evaluations reveal that Yang (1973) approach for Total load transport rate gives better result for the river Talkeetna comparatively to the other two rivers. Comparison between the observed values and the predicted sediment transport rate indicates acceptable discrepancy ratio. Best predictability is observed for Talkeetna River data set. The tests generally indicated a consistency between the predicted transport rates and the corresponding measured values.References
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