This study presents the shoreline position changes of Yanbu coastal zone from 1965 to 2109, using multitemporal satellite data and the Digital Shoreline Analysis System (DSAS) application. The shoreline change rates were calculated based on End Point Rate (EPR), Linear Regression Rate (LRR), Weighted Linear regression (WLR) and Net Shoreline Movement (NSM) statistical methods to assess the short- and long-term trends. The maximum accretion reached was 1655.9 m (30.66, 32.32 and 36.9 m/year based on EPR, LRR and WLR methods respectively) while the maximum erosion was −1484.8 m (−37.9 m/year, −32.7 m/year and −33.5 m/year based on EPR, LRR and WLR methods respectively). An area of about 20 sq. km of sea and islets has been backfilled or dug in for various facilities. Thus, major changes in the configuration of the coastline are linked to human activities. This study provides a synoptic outlook of the degree of potential threat to the coastal system and their potential consequences.

本研究利用多时相卫星数据和数字海岸线分析系统（DSAS）的应用，介绍了盐埠沿海地区在1965年至2109年之间的海岸线位置变化。海岸线变化率是根据端点率（EPR），线性回归率（LRR），加权线性回归（WLR）和净海岸线运动（NSM）统计方法计算得出的，以评估短期和长期趋势。达到的最大吸积量为1655.9 m（根据EPR，LRR和WLR方法分别为30.66、32.32和36.9 m / year），而最大侵蚀量为−1484.8 m（−37.9 m / year，−32.7 m / year和−33.5 m /年分别基于EPR，LRR和WLR方法）。已将约20平方公里的海域和小岛回填或挖出各种设施。从而，海岸线结构的重大变化与人类活动有关。这项研究概述了对沿海系统的潜在威胁程度及其潜在后果。