Open AccessBase flow identification using conceptual hydrology model
Author(s) -
Nugroho Suryoputro,
Anie Yulistyorini,
Gilang Idfi,
Noraliani Alias
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/669/1/012030
Subject(s) - base flow , flow (mathematics) , hydrology (agriculture) , watershed , environmental science , conceptual model , groundwater flow , flow conditions , base (topology) , flow routing , groundwater , geology , geotechnical engineering , computer science , mathematics , geography , drainage basin , aquifer , database , geometry , cartography , mathematical analysis , machine learning
Base flow was a vital component in controlling the flow of a river. Base flow came from the groundwater flow. Base flow was the river flow that occurred during the rainless period. Conceptual hydrology model was a model that displays the hydrology process in mathematical formulation and separating the production and routing functions. The tank model was one of the conceptual models. The tank model simulated the watershed by replacing some reservoirs with several tanks. This research aimed to identify the base flow using conceptual hydrology model. The study was conducted in the Bango sub-watershed.. The results exhibited that the tank model was dissatisfactory to simulate the surface flow compared to base flow. Surface flow model tended to be higher (overestimate) whereas the base flow tended to be lower (underestimate) compared to the observation data. The statistic test result displayed that the tank model could describe the base flow well.