CASPIAN GEOMATICS offers professional services in bathymetry (hydrographic surveys), side-scan sonar, mapping, hydrology and level measurement, and modeling.
Experience
Our company experience enables us to perform depth measurements on both artificial and natural water bodies. Our approach directly depends on the specific methodologies we apply, both in terms of depth and other criteria. We strictly follow a HSE policy when we work in both shallow and deep waters. We conduct sonar and bathymetric surveys in shallow and deep water areas in accordance with our HSE policy. Our group staff hold international HSE and IMO certificates. We have signed numerous contracts for bathymetric and sonar surveys and are also licensed to carry out these surveys (marine, rivers and lakes, reservoirs) for the purpose of designing and constructing structures.
As a result, the report is provided to the customer. Above all, the report includes the applied methodology and equipments, images and results of bathymetric and sonar surveys. At the same time, the customer is provided with all necessary data (including models and maps). During wide-area hydrographic surveys, we routinely utilise multibeam system, in order to achieve the detection of any man-made objects on the seabed. Our deliverables are enhanced by offering the client bespoke outputs including 3D point cloud and surface model visualisation, coloured graphics and TIF files, AutoCAD DXF and DWG files, GIS, ACSII XYZ and GSF files, as well as hard copy colour plots.
Side-scan sonar & bathymetric surveys
The system provides high-resolution seafloor morphology from both sides of the vessel track using side-scan sonar. Researchers use this category of sonar system to efficiently create an image of large areas of the seafloor. Mapping the seabed for a wide variety of purposes is the goal of this tool. Sonar system imagery is also a commonly used tool to detect debris and other obstructions.
In addition, researchers can investigate the status of pipelines and cables on the seafloor using side-scan sonar. At the same time, officials widely use sonar surveys in underwater analyses related to safety in beach areas. This system consists of a dual-channel tow-fish capable of operating in water depths for the survey and contains a tracking system.
To survey large areas of the seabed, surveyors either fix a transducer to a vessel’s hull or attach it to a “towfish” that they tow behind the vessel. The transducer emits fan-shaped pulses, and for bathymetry, scientists measure, record, and compute the echo to create an image of the seabed. As they travel in a straight line, they stitch together the results to present a composite image. During sonar and bathymetry surveys (single-beam and multi-beam surveys), they specify navigation and geodetic parameters, as well as ship configuration parameters.
Side-scan data often aids identification of seafloor objects / targets and highlights the shape, orientation and dimensions of the entity. Any object or feature that is above the seabed will cast a shadow within in the sonar image, allowing the software to interpolate the size of the shadow, which can be used to accurately dimension the feature or target.
Typically multi-frequency bathymetric survey to cover a large area. It offers an efficient and cost-effective solution for mapping large areas in a single vessel pass.
Application:
- Tourism
- coastal management
- dredging projects
- Rivers and lakes, water reservoirs:
- dam inspection surveys
- oilfield engineering
- oceanographic research projects
- environmental studies
- hazard surveys
HSE
Methodologically, HSE specialists assess the risks on the project area, and as a result, all the expected danger possibilities are reduced to the minimum level. Firstly, specialists first inspect the project area and prepare the necessary documents and present them to the Customer.
review a number of projects that have been done
Geological & Geophysical survey services