Comparative analysis of singlebeam and multibeam echosounder bathymetric data

Abstract Gresik Port, East Java, is a port that has very strategic location because there are several large industries such as the PT. Petrokimia Gresik, Semen Maspion, Wilmar, Pelindo III, and other factories. This condition makes need to obtain accurate necessary water information bathymetry. Bathymetry an essential parameter of management. There currently two types equipment used frequently measure bathymetry, namely Singlebeam Multibeam Echosounder (SBES MBES). However, these bathymetric survey instrument tools may not provide same depth. study compared bathymetry data derived from MBES SBES, collected at time place. The depth comparison test between SBES shows Z 0 statistical 0.018 m. value smaller than table for 95% confidence level, which ranges -1.96 < 1.96. result means good quality within standard 1a IHO SP-44 5 th edition in 2008.[1] surfaces reveals cut volume greater fill volume, 21078.81 m 3 . shallower average depths data. dredge difference with 15 reference 23617 inside area 22.1 Ha. It 0.11 per 2 or 11 cm