The Effect of Wave Transformation on Jetty structures in Bojongsalawe Estuary, Pangandaran Regency
M. Rizqi Noverian Agatha(a*), Indratmo(b), Yadi Suryadi(b), Eka Oktariyanto Nugroho(b), Widyaningtias(b), Ritular(c)

(a)Master Study Program of Water Resources Management, Civil Engineering Study Program, Faculty of Civil and Environmental Engineering, Bandung Institute of Technology, Bandung 40132, Indonesia
(b)Water Resources Engineering Research Group, Civil Engineering Study Program, Faculty of Civil Engineering and Environmental, Bandung Institute of Technology, Bandung 40132, Indonesia.
(c)Ministry of Public Works and Housing

Abstract

Bojongsalawe estuary is a place for the flow of shipping traffic for fishermen. The estuary is located on the South Coast of Java which has a very large wave influence. That situation has difficulty for fishermen doing activity. For this reason, the Ministry of Public Works and Public Housing is building a two jetty on 2 sides of the estuary.
The study aims to analyse the influence of jetty on wave height.
The analysis was carried out using MIKE Coast and Sea to determine the wave height that occurred due to the jetty. The analysis was carried out using 2 scenarios, namely the scenario without jetty and with jetty.
The modelling results obtained that the wave height due to the jetty is lower than without the jetty. The results of the model were then validated using tidal data at the study site.
This study is intended to determine the wave height that occurs due to the jetty so that it can be used as a reference for the flow of shipping traffic for fishermen in Bojongsalawe^s estuary.

Keywords: jetty, wave height, MIKE, Bojongsalawe, estuary

Topic: Engineering