Leveraging Satellite Remote Sensing for Offshore Environments
Bathymetry
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A bathymetry survey was required for a large shallow water area off the north coast of Crete.
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Satellite radar data can be utilised to monitor shallow water depth by measuring the time delay between radar signals reflected from the water surface and the seafloor, allowing for accurate depth calculations.
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Water depth at every pixel location determined for wide coverage.
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The survey was completed in a fraction of the time an in-situ survey would have taken.
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Information gained from these studies allows for a multitude of benefits, for example, indicating the most suitable locations for the construction of ports.
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Moreover, authorities can use this knowledge to better allocate maintenance resources in a cost-effective way.
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Remote sensing analysis is not limited to shoreline and shallow water monitoring; it even has the capability to monitor the movement of glaciers.​​
Highlights
Remote sensing methods the capability to provide data on all kinds of topographical and geological situations, and their operations are not limited to dry land. Optical and radar imaging techniques can also provide efficient and economical solutions for marine and coastal analysis. Here are 3 examples of where this technology can be used:
Bathymetry: Measuring Coastal Erosion and Cliffs
This imaging technique utilises satellite data to measure the depth of shallow water. Processed satellite data can provide estimates of water depth at a pixel level. By assessing the changes in nearshore depth over time, the condition of coastlines can be more clearly detected.
DInSAR Analysis: Monitoring Coastal Erosion and Cliffs
InSAR data can be used to measure the extent of movement or erosion of cliffs along a coastline. By tracking the velocity of ground movement, predictive values and maps can be drawn to assess the rate of change. By combining radar with optical data, the level of erosion can be determined.
Shoreline Monitoring: Tracking Historical Changes Over Time
By utilising a combination of satellite remote sensing techniques using optical and radar satellite data, historical changes along the shoreline can be assessed.
Key Benefits of Satellite Remote Sensing for Offshore Analysis
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Cost-Effective Solutions: Remote sensing provides extensive coverage without the need for costly, labour-intensive fieldwork. This makes it an economical solution for large-scale marine and coastal assessments.
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Informed Decision-Making: The detailed data collected through satellite remote sensing can guide infrastructure development, such as identifying the best locations for ports, harbours, and coastal installations.
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Efficient Resource Allocation: By understanding coastal dynamics and areas at risk for erosion or subsidence, authorities can allocate maintenance resources more effectively, reducing long-term costs and improving response times to environmental changes.
Satellite remote sensing is revolutionizing offshore and coastal monitoring, offering unparalleled accuracy, coverage, and cost savings. From bathymetric mapping to monitoring erosion and shoreline changes, these techniques are essential for managing marine environments, safeguarding infrastructure, and supporting sustainable coastal development.
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Remote sensing analysis is not limited to shoreline and shallow water monitoring; it even has the capability to monitor the movement of glaciers. Find out more in this article...
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For more information on how remote sensing can benefit your offshore projects, reach out to our team today.