Satellite-derived bathymetry in practice
Current examples for cable route surveys and coastal monitoring
Multibeam bathymetry surveying is a well-established method but limited to water depths accessible by vessels or small boats. Airborne LiDAR bathymetry (ALB) systems can cover this gap by surveying both the coastal topography and the shallower water regions. ALB surveys are mostly suitable for larger pro-jects where accurate measurements are requested, as they require on-site mobilisation and a noticea-ble amount of costs. Satellite-derived bathymetry (SDB) can be seen as an option for an easy to imple-ment, cost-effective and globally available solution to provide full coverage with moderate density and accuracy which may be suitable for certain projects in coastal regions or as a precursor survey before commissioning a targeted survey. This paper describes methods providing information to fill data gaps for cable landing sites and for coastal zone monitoring. They are based on the new SDB online software eoLytics SDB by ¬EOMAP. Results obtained compare well against acoustic survey data. The procedure was found to be highly useful for the described purposes.
SDB – satellite-derived bathymetry | LiDAR | cable route survey | coastal zone monitoring | eoLytics SDB
