Using Single Beam Echo Sounder to Recheck Shipwreck Location

บทคัดย่อ

     The research aimed to ensure the searching capability of Single-Beam Echo Sounder (SBES) as same as Multi Beam Echo Sounders (MBES). The testing was about rechecking shipwreck on the Clyde River floor. If the solution from SBES technology is suitable for positioning shipwreck, it will save time and budget. The experiment was with five main objectives. GIS Software was the tool for processing and analyzing data. After the experiment was completed, the result showed that the map from the MBES dataset (2014) could find the location and measure the dimension of the shipwreck while the map of SBES (2019) neither found the location nor measured the dimension. SBES (2019) and MBES (2014) could be separately displayed on the river floor in different colours representing different depths. Moreover, the collected data by SBES (2019) on the fieldwork met Order 1b of the specific requirements (S-44) of IHO. Furthermore, the feature and contour lines from the SBES (2019) and MBES (2014) dataset presented quite the same feature of the river floor, but the map of SBES dataset (2019) from fieldwork showed a few differences in contour lines because the dataset did not cover the entire study area. Finally, the SBES dataset (2019) could not be used for identifying or rechecking the location and dimension of the shipwreck, but it could be used for generating the map of the river floor or seafloor. Although this research achieved most of the tasks, SBES still has some limitations and cannot achieve the main objective. The conclusion was that the capability of SBES was not suitable for searching and locating shipwreck.