The Observation Current of Cirebon Waters in 2022

Abstract

Abstract The waters of Cirebon are located in the Java Sea, characterized as a relatively shallow open bay, serving as a small basin that receives numerous river flows from Java and Kalimantan islands. This research aims to analyze the seasonal distribution patterns of surface ocean currents in the Cirebon waters. Data was collected in May (transitional season I), July (east monsoon season), and October (transitional season II) of 2022 at 12 stations scattered across the open bay of Cirebon. The velocity and direction of the currents were measured using an Acoustic Doppler Current Profiler (ADCP) installed on the research ship. The results showed that the currents predominantly moved towards the northwest during the transitional season I and east monsoon season, while during transitional season II, they predominantly moved northward by the seasonal wind patterns. The strongest average current velocity occurred during the east monsoon season (0.082 m/s), followed by transitional season II (0.064 m/s), and the slowest in transitional season I (0.047 m/s). Additionally, the comparison between observation data and surface data from Marine Copernicus indicated a Root Mean Square Error (RMSE) value of 0.037.