Effect of Water Balance in Arafuru Retention Pond due to Buah River Water Level Changes

Deni Harison, Achmad Syarifudin

Abstract


The study was conducted to examine the effect of changes in water level in the Buah River on the balance of water retention in the Arafuru pond using the HEC-RAS ver.4.1.0 program.The data used is based on rainfall data analysis, namely the value of rainfall rainfall simulation results from the Buah River Basin (DAS) with the main river length of 7.93 km, there are many meanders and river wall reinforcement has been built.The results showed that the Buah River with Arafuru retention contained areas where the water ran off, namely at station 3+000 which was 0.90 m both on the right and left of the channel cliff. At stations 2+750 to 2+800 there was a decrease in the water level ranging from 0.70 m to 0.80 m, while at station 2+700 there was an increase in the water of the Buah river which resulted in changes in air balance and the effect of opening and closing the floodgates ( closing gate) in the Arafuru pond. 

Keywords


The Buah river; Flood discharge; IDF curve; HEC-RAS program; Water balance

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References


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DOI: http://dx.doi.org/10.52155/ijpsat.v31.2.4142

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