Satellites reveal undersea landscapes
![](https://projects.research-and-innovation.ec.europa.eu/sites/default/files/styles/medium/public/successstory/18-1_01_19_small.jpg?itok=lWpo_9Ya)
Conventional methods of mapping the sea floor are slow and expensive. EU-funded researchers used satellite-derived techniques combined with crowd-sourced depth soundings to map large areas quickly and at lower cost.