Analysis of Wave and Tidal Characteristics after Marine Sand Mining Using MIKE-21 Modeling: A Case in North Galesong Takalar, Indonesia

The management of marine sand mining contributes positively to infrastructure development but can also negatively impact oceanographic parameters and ecosystems. This study aims describe the profile waves tides after sea in Bone Malonjo waters, North Galesong District, Takalar. research method is tidal wave data collection. Wave Numerical Modeling was conducted using DHI-Mike 21 software, specifically Boussinesq (BW) module. required input bathymetric x, y, z format water level elevation based on tides. type at site mixed tide prevailing semi-diurnal. MIKE-21 modeling results conditions west monsoon existing condition before an interval 2.4 – 2.6 meters. show that did not change significantly mining.
 In comparison, height east as lower than west. 2.1 2.5 m, which mining. this assure fishermen's community there no significant location.