Map the Seabed from the Sky
We use aerial and satellite imagery to create detailed bathymetric maps of coastal areas. Fast, accurate, and now completely free.
Get Started NowSeeing Underwater, from Above
Bathymetry from Multispectral Imagery is a revolutionary technology that estimates sea depth by analyzing sunlight reflected from the seabed and captured by aerial or satellite sensors. Forget expensive and slow oceanographic surveys: we can now map vast coastal areas quickly and safely.
Fast and Efficient
Acquire bathymetric data for large areas in a fraction of the time required by traditional methods.
Cost-Effective
Eliminate the need for ships, crews, and complex logistics, drastically reducing costs.
Safe and Accessible
Map remote or hazardous areas for navigation without any risk to personnel and equipment.
State-of-the-Art Techniques and Models
Our service is based on scientifically validated algorithms that transform raw satellite data into accurate depth maps. Depending on water conditions and seabed type, we use different approaches. Some models require in-situ data points for calibration.
Empirical Models
These models, like Stumpf et al. (2003) and Lyzenga (1978), use ratios between different spectral bands (e.g., blue and green) to derive depth. They are robust, fast, and ideal for clear waters with homogeneous seabeds.
Learn more →Semi-Analytical Models
More complex approaches, like the Lee et al. (1999) model, which model the path of light through the water column. They consider the optical properties of the water and are better suited for variable conditions and more complex waters.
Learn more →SkyBathy Lyzenga-Like Model
It's a model based on Lyzenga's, but instead of fixing Kd, Rb, and R∞ beforehand, it estimates them from the data.
Learn more →XGBoost Model
The scalable tree boosting system by Tianqi Chen. It effectively captures complex, non-linear relationships between spectral data and depth, often outperforming traditional regressions.
Learn more →Try Our Free Service
We are excited to offer access to powerful tools for the scientific community, coastal operators, and sea enthusiasts. Discover links to platforms that implement these models to create your own bathymetric maps.
Copernicus Sentinel Data
Free multispectral satellite images to use in our models
Web App (Stumpf & Lyzenga-like)
A web app to apply the Stumpf and Lyzenga-like models directly online.
Web App (Lee)
A dedicated web app for applying the Lee model for custom analyses.
Web App (XGBoost)
A dedicated web app for applying the XGBoost model by Tianqi Chen. Updated 04-2026.
Get in Touch
Have questions, suggestions, or want to collaborate with us? We'd love to hear from you.
Email info@skybathy.com