Bathymetric measurements are the equivalent of altimetry applications over water. It is the study of water depth with the help of which maps and profiles of the underwater relief can be created.
Bathymetry method is successfully being used on lakes and rivers (before and after dredging) in order to determine the silt deposit and to estimate the useful material reserves or in order to create maps of flood risk areas, of recreational lakes or beach areas for signaling deep places with drowning danger, underwater archaeological research, etc.
Applications for bathymetric measurements:
- Measurements for determining the depth of lakes and rivers;
- Monitoring the excavation in the ballast-hole;
- Maps with isobath depth of lakes, rivers or marine waters;
- Cross rivers and lake profiles;
Bathymetric Maps
Bathymetry can be considered aquatic equivalent of altimetry. Representing an offshoot of the hydrometry, bathymetry deals with measuring the depth of water in seas, lakes and rivers and can achieve their underwater relief maps.
To measure the depth it is used a sonar that emits a sonic wave, high frequency, with which to measure water depth. Corroborating technique sonar depth measurements and exact position using GPS technology, our company can calibrate your depth map or maps of the lakes or rivers relief foundation. Subsequently of these measurements can be made sections in areas of interest.
Bathymetric measurements finds its applicability in various fields and can contribute to a better knowledge of geomorphological conditions of work:
- Monitoring clogging lakes and rivers;
- Underwater location plan;
- Exploitation of river mineral aggregates river;
- Monitoring of ballast pits excavations;
- Composition flood risk maps;
- Sections and bathymetric maps;
Bathymetric Profiles
Utilizing bathymetric measurements technique, data acquisition can be made both in a uniform network (especially for bathymetric maps) and default routes for analysis of underwater landscape on profiles.
Bathymetric profiling finds its applicability mainly on flowing waters (rivers, canals) where an investigation on to a perpendicular or longitudinal section to the direction of flow of the river greatly reduces the workload and, consequently, the cost of work.
This kind of bathymetric survey finds its applicability in different fields:
- Monitoring clogging rivers and canals;
- Monitoring of ballast pits excavations;
- Composition flood risk maps;
- Underwater research;
- Situation plans;