ICOSITER 2018 Proceeding Journal of Science and Applicative Technology 119 ANALYSIS OF SHORELINE CHANGES ON KRUI BAY, WEST COAST OF LAMPUNG PROVINCE S Panalaran 1 , T A Tarigan 1 and N Simarmata 2 1 Ocean Engineering, Institut Teknologi Sumatera 2 Geomatics Engineering, Institut Teknologi Sumatera Abstract. Shoreline change is a natural process caused by the transported sediment generated by nearshore current to preserve the mass rates. Shoreline change can be a shoreline loss called abrasion as well as shoreline expansion due to sedimentation called accretion. Abrasion and accretion phenomenon can be regarded as a threat if they cause damage or potentially disrupts human activity. Identification of land use as well as geographical and physical condition of a region can be approached by satellite image analysis. This research uses Landsat Satellite imagery to observe shoreline changes based on the position of shoreline recorded through satellite images of 2004, 2010, and 2016. The image of one period overlapped with other period images is used to calculate the increment or decrease of shoreline occurring at a particular location. The results of this study will show the trend of increasing or decreasing the shoreline based on certain time and position 1. Introduction Abrasion and sedimentation are natural processes of the coast due to sediment transported by nearshore currents. Coastal sediment transport occurs because of bottom shear stress which makes sediment at the bottom moving and transported. Abrasion and erosion yield shoreline change towards the sea or land. One approach monitoring of shoreline change is through satellite imagery. The advantage of this method is less expensive but able to capture a large area over time. Analysis of shoreline changes with satellite imagery can be an initial process in determining strategic steps in coastal management. Accuracy in analyzing shoreline change is limited by spatial, temporal, and spectral resolutions. Accuracy of defining geographical coordinates is principal matter in measuring the position of the shoreline. The accuracy is attempted by rectifying the satellite imagery based on corrected coordinates obtained from reference imagery (raster data) or map (vector data).