THE MODEL OF CURRENT PATTERN AT THE MOUTH OF PORONG RIVER SIDOARJO

This paper presents the results of the modeling process and scuence of water flow at the mouth of the Porong river Sidoarjo. It is aimed to know the patterns and movement of sea water for period time of 15 days earlier in August 2017. This model used the principles of SMS (Shallow Water Model System). Bathymetry data used is the sounding results. Model calibration using a measured flow speed of the field measurements are then compared with the speed of the generated by the model. The results in general show that the period of movement patterns of water heading upstream from the direction of offshore at the time toward the plug (ups). On the other hand, the water movement would leave for offshore direction towards the downs. The Calibration of the speed of the model against the speed measurement gives accuracy rate, average standard error value is 0.024.