DEPTH SOUNDING CORRECTION COMPARISON USING RTK GPS AND TIDAL DATA

• Main Author: Rinaldy Juniver Butar Butar - Nim: 15114057 , Christon
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/26270
• Institution: Institut Teknologi Bandung

<p align="justify">One method that is applied to the measurement of bathymetry is by using acoustic technology at the bottom of the sea. The seabed technology used in this study is Multibeam Echosounder. At the time of playing, the tides are generally observed. The depth obtained from the transducer was originally stated from the Center of Gravity (CoG) on the ship. The depth data will be added to the tide observation data which already has a high difference value to the vertical datum so that the depth has a reference. Along with the development of positioning technology such as the real time kinematic global positioning system (RTKGPS), bathymetric surveys began using GPS as a determinant of horizontal position and correction of the vertical position of the ship. In this study a comparison of the depth of the correction results using tide and RTKGPS data is done by looking for the difference from the digital elevation model (DEM) that has passed the tool calibration stage and cleaning the data from both depth correction methods. In this study obtained a systematic difference with a standard deviation of 0.009 m from the difference between the two DEMs.<p align="justify">