Distribution pattern of suspended sediments in Wulan Delta, Demak, Indonesia

Suspended sediments are part of factors affecting the sedimentation process. Hydrodynamic conditions, along with mangroves and ponds in the coastal area, affect their distribution in Wulan Delta. This study was designed to estimate the concentration of suspended sediments from 2016 to 2018 and analyze the distribution patterns in Wulan Delta, Wedug District, Demak Regency. It employed quantitative methods with quantitatively and qualitatively descriptive analyses. The parameters of oceanographic hydrodynamics, including wind, waves, currents, and tides, were used to examine the distribution of suspended sediments, while remote sensing images were used to estimate the concentration of these sediments. The hydrodynamic conditions in Wulan Delta were formed by the wind blowing at the speeds of 8.8-11.1 m/d and a frequency of 4.94 during the west monsoon, destructive waves with < 1 m in height, current velocities ranging from 0 to 25 cm/d, and mixed tides with prevailing diurnal type. From 2016 to 2018, the concentration of the suspended sediments varied between 60 and 180 mg/l, and their distribution followed the development of Wulan Delta, that is, leftward (southwest-south) © 2019 SPIE.