The Coastal Hydrodynamics Analysis in The Lampung Bay

Abstract

The waves play a major role in the hydrodynamics of the sea, which they are very influential on human activities in the ocean. Thus, the knowledge of the waves conditions can provide many advantages, this is a challenge for marine experts in modeling ocean dynamics. The coastal area of Lampung Bay is one of the most densely populated areas in Bandar Lampung. The economic situation in the coastal area of Lampung Bay has been developing for a long time, this can be seen from the many old buildings in the coastal area. The existence of extreme waves in Lampung Bay can be as a concern for determining disaster mitigation planning and zoning around Lampung Bay. Based on the result of tidal analysis using the formzhal number equation, it is known that the type of tides in the research sites is mixed (semi-diurnal dominant) tidal type. According to simulating model of the wave characteristics in Lampung Bay, the sea characteristics can be divided into two, namely slight sea for deep waters of Lampung Bay with a wave height of 0 - 1.25 meters, and moderate sea for waters at the mouth of Lampung Bay with a wave heights of 1.25 - 2.5 meters.