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Application of MIKE SHE modelling system to set up a detailed water balance computation
Author(s) -
Rahim Bahaaeldin E. A.,
Yusoff Ismail,
Jafri Azmi M.,
Othman Zainudin,
Abdul Ghani Azman
Publication year - 2012
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/j.1747-6593.2012.00309.x
Subject(s) - water balance , watershed , evapotranspiration , inflow , environmental science , context (archaeology) , hydrology (agriculture) , outflow , surface runoff , calibration , energy balance , meteorology , ecology , mathematics , computer science , statistics , engineering , geology , geography , paleontology , geotechnical engineering , machine learning , biology
Estimation of total water balance is a substantial issue for watershed modelling in order to simulate the major components of the hydrological cycle to determine the stress of different anthropogenic activities on the available water resources within a catchment. In this context, the fully distributed physically based MIKE SHE modelling system was used to simulate the individual hydrological components of the total water balance for the P aya I ndah W etlands ( PIW ) watershed in the west of P eninsular M alaysia. Results reveal that the overall water balance is predominantly controlled by climate variables. Application of the model to the PIW watershed provides detailed estimation of the total water balance for a first‐order catchment in which actual evapotranspiration ( ET ) represents approximately 65 and 58%, while overland flow ( OL ) to the PIW lake system represents 12.38 and 12.3% of the total rainfall during the calibration and validation periods, respectively. The difference of the inflow and outflow was taken as storage in depth. Overall, the model gives a reasonable output of total error of less than 1% of the total rainfall, which in turn indicates that the interaction among components is satisfactorily sustained.