AAC employs Digital Oceanographic Survey to compile data and information concerning unknown depths of the sea from different angles, and the analyzes and processes the resulting information. Through our comprehensive consulting service, we study the ocean and look for new ways and means to preserve it, to utilize marine resources and to develop recreational marine activities.
A sludge probe with a narrow multi-beam echo sounder system/seafloor geologic probe to conduct a comprehensive study of the seafloor. The seafloor topographic model is obtained for determining the optimum route for laying marine cables and pipelines by analyzing seafloor environment information.
This image shows an example of using side-scan sonar to study the state of the seafloor surface.
Marine Study Accompanying Minami Awaji City Cable TV Installation (2006)
AJC Shima Landing Marine Cable Status Study (2005)
For current observation a marine shortwave radar surface current observation system is used and observation instruments are placed in two locations facing the shore to emit radar waves that reflect off of the coast and these reflected waves are analyzed for their difference in frequency from the emitted waves to calculate the current direction and speed data.
It is used to provide not only information for supporting safe and efficient sailing of vessels but also hydrographic conditions to allow people to enjoy ocean leisure safely.
Knowing the current conditions makes it possible to provide fundamental data for harbor and coast preservation facility planning and design. This can also be used to support safe and efficient marine construction.
The narrow multi-beam echo sounder system can identify the topography of seafloors and riverbeds and captures three-dimensional data over a wide area in a short time. In addition, this is a hybrid system that is equipped with side scanning sonar to investigate the bottom sediment distribution of seafloors and riverbeds.
The water depth charts, bathymetric images, seafloor/riverbed mosaics, aerial views, hill shading, and other views provided by this system are extremely useful for determining the positioning of wave-dissipating blocks, repair and maintenance of harbor facilities, and salvage studies.
Tokyo Bay Entrance Sea Route (Nakanose Sea Route) Bathymetry (2006)
Fiscal 2007 Coastal Protection Measures Project (Coastal Erosion Countermeasures) Miyaumi District Coastal Bathymetry (Narrow Multi-beam Echo Sound) Project (2007)