Satellite Lidar Bathymetry


Satellite Lidar Bathymetry (SLB) is one of our services for surveying shallow waters. SLB allows to derive bathymetric data points from an active green laser. At EOMAP, we access photon point clouds from the ATLAS (Advanced Topographic Laser Altimeter System) sensor of NASA’s IceSat-2 satellite and run a workflow of routines and corrections. This includes correction of water refraction and recording geometry as well as effects of tides and water heights. A proprietary cluster algorithm separates seafloor photon returns from both the water column and water surface.

ATLAS is a green photon-counting lidar with a 10-kHz-pulse repetition rate and nominal 17-m-diameter footprint. The instrument records photon returns in discrete track lines covering the entire globe. SLB data include depth for specific geo-coordinates along these single, separated track lines. Thus, SLB data alone cannot provide dense and continuous spatial data grids similar to Satellite-Derived Bathymetry. However, as an active measurement system, Satellite Lidar Bathymetry can be used in combination with our dense Satellite-Derived Bathymetry grids or as stand-alone datasets.

EOMAP offers Satellite Lidar Bathymetry (SLB) as database and single datasets at different scales, from site specific to national or global extent.

Advantages at a glance

  • Access to bathymetric track lines derived from a satellite-mounted active green Lidar (IceSat-2 ATLAS)
  • Access to full global, regional or site-specific databases
  • Valuable source to combine with Satellite-Derived Bathymetry methods

Further Reading and Links

Learn more about Satellite Lidar Bathymetry in the article in Hydrographic News (2020).


How can I request information for a specific site?
Simply send your area of interest in digital format to our shallow water team or use our contact form. You’ll receive appropriate feedback within 24hours.

What makes EOMAP’s service unique? Why does EOMAP’s data service stand out?
EOMAP’s seafloor classification services have been widely used and validated in practice. Since 2006, we have built up expertise on physics-based remote surveying of shallow waters and deliver around +100 projects per annum. Via various research projects we remain at the forefront of technology. Our clients acknowledge the quality of our data, our extensive background knowledge, the passion for coastal and inland waters plus a high level of service readiness.