Pemodelan pola arus akibat pergerakan pasang surut di Muara Sungai Kapuas menggunakan Software Mike 21

Abstract

The estuary of the river is as part of the downstream of the river that is directly related to the sea which is influenced by tides will affect the circulation of the flow or what is referred to as the current. Tidal currents where rivers are influenced by several factors, one of which is wind. The current will move the flow of water masses from one place to another. To determine the movement of current patterns, especially in the estuary of the Kapuas River, modeling is used with the help of MIKE 21 Software. The data used in this modeling are coastline data obtained from Google Earth, bathymetric data from National Bathymetry (batnas), tidal data from the Indonesian Geospatial Reference System. From the processing of these data, the results obtained from this study produce how large the distribution of currents caused by tidal movements at the mouth of the Kapuas River. Has a major influence on the occurrence of land erosion and sediment transfusion by the rotation of currents coming from the upper reaches of the Kapuas River and the characteristics of the Kapuas river flow experience sedimentation deposition in the Kapuas River Estuary which is quite high.