Developing Interception and Root Uptake Systems in Conceptual Hydrological Modelling
Keywords:Hydrological model, conceptual, interception, root uptake
AbstractThis research aimed at developing a conceptual hydrological model (tank model) with interception and root uptake. It was conducted in a sub-watershed of Coban Rondo located in an area with 89% forest and plantation land. 10-year rainfall and discharge data were used to perform calibration, verification and simulation. The calibration utilised a hybrid optimisation method of random search and genetic algorithm. A water balance equation was developed. The effect of interception and root uptake parameters on the modelling procedure was evaluated using the Nash-Sutcliffe Efficiency (NSE) coefficient and paired sample t-test. Results showed that, at a significance level of 5%, the interception and root uptake parameters had a significant effect on modelling (t Stat = 8.457 > t Critical two-tail = 1.980). The modelling performance increased by 26.98% with a NSE value of 0.91.
The copyright for the articles in EREM is retained by the author(s) with the first publication right granted to the journal. The authors agree to the Creative Commons Attribution License 4.0 agreement under which the paper in the Journal is licensed.