#TITLE_ALTERNATIVE#

• Main Author: Samudra<br>NIM. 95004024, Achmad
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/5637
• Institution: Institut Teknologi Bandung

<b></i>Abstract :</b><i><p align="justify"><br />Cause from superficiality a port is sediment, to return the condition of Port of natural Fish Pasar Madang countryside of closing effect of sediment to condition of early, required by the existence of long addition of groin as long as 60 m from groin length which have there is as long as 125 m, and other groin-groin building around the port to take care of coastal stability. Peripatetic sediment as long as surfzone that is strarting from wave break up to coast, caused by parallel current of coast ( Longshore Current ). Parallel current of coast happened caused by incoming wave from angular shape deep sea to is normal of coastline.<br /><p align="justify">Coast Pasar Madang representing study location have coastline length about/around 1,300 km. Existing sediment in the form of smooth sand which have sand composition above 80% and the rest is mud, with coastal inclination very sloping that is I : 60, wide so that surfzone is about/around 262 m. Dominant wind blown southeasterlyly, but biggest wave come from southward.<br /><p align="justify">Calculation of used by Sediment is energi flux method and result from the calculation is sediment debit that happened equal to 6.318,52 m³ / year, and result of measurement of field by using GPS appliance equal to 8.764,811 m³ / year, to activate again port of the fish and take care of remain to be peaceful needed by an method simulation enumeration of change of coastline with Simulation Method Pelnard Considere and Method Hsu, rom both of the method indicate that change of coastline by wearing 4 groin with each length of groin I construction 60 m, and 3 each construction 100 m step by step with each calculation of groin will full of after 2 year to 60 metre and 5 year for the groin of with length 100 metre.<br />