Lakes in Universitas Indonesia (UI) have several problems to overcome. Water quality of UI's lakes degrades in the last decade. One of the problems is high turbidity. The longer turbidity in lakes, the more dangerous the lakes environment life would be. So, this research focuses on sediments problem or physical assessment. The main research aims to develop hydrodynamic and sediment transport modelling of Agathis and Mahoni Lakes in Universitas Indonesia. The authors want to increase the quality

more »

... of water in UI's lakes and make both Agathis and Mahoni Lakes as the representative preliminary model. Research design or methodology is needed to concept the research to achieve goals. Unfortunately, research methodology has not been developed yet for this case. This paper goals to construct methodology as a preliminary study of the main research. The authors use extensive literature review to model novel methodology. Hydrodynamic and sediment transport modelling could be modelled by Resources Modelling Associates (RMA). Hydrodynamic phenomena in fluid and sediment transport modelling have the suitable governing equation concept with RMA's governing equation. As a thinking result, the main research would be conducted by RMA program modelling, field sampling, and laboratory testing. Field sampling and laboratory could figure the amount of sediment concentration in lakes as data input. The final simulation of this following research is making sensitivity and scenario analysis to prove several hypotheses.