Abstract
Ocean dynamics has a direct impact on the distribution of objects or dissolved particles such as marine debris. Hydrodynamic studies are currently an important tool to identify the potential pollution in the region. Data were collected from March to September 2019 in the northern waters of Banda Aceh. Wind data were obtained using AWS and bathymetry data were collected using the single beam echosounder. The results showed that the wind direction on the coast of Banda Aceh City was dominant towards the Northwest and Northeast with a maximum speed of 9 m/s. Wind direction will highly influence the sea surface currents dynamics that lead to longshore currents and radiation currents occur in coastal areas.Keywords:Marine debrisWasteFishery
Highlights
Ocean dynamics have an extensive scope, ranging in size from millimeters to thousands of kilometers
Wind speed and direction measurements were collected in July-September 2019 with a time step of every 30 minutes. This measurement was carried out to determine the dominant wind direction in the coastal area of Banda Aceh City because the surface wind is one of the factors that mainly influence the direction of the water waves
The wind direction on the Banda Aceh coastal area is dominant to the Northwest and Northeast with a maximum speed of up to 9 m/s
Summary
Ocean dynamics have an extensive scope, ranging in size from millimeters to thousands of kilometers. Spatial discretization equations are used to calculate the dynamics of continuity based on geometric space (mesh) and Lagrangian equations in determining the numerical scheme. Discrete computations can be performed using the Mike software (Warren and Bach, 1992) a comprehensive modeling software to simulate hydraulic patterns in the coastal, estuary, or marine areas. The advantage of this software is that it creates a two-dimensional model that is easier to calculate, especially for applications in sea-level areas
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