Summary

  • Using gravitational data, the Surface Water and Ocean Topography satellite has produced an extremely detailed map of the ocean floor, showing features as small as abyssal hills - which are too small to be seen via radar.
  • The satellite was launched in 2022 by the NASA and French space agency CNES, and has filled in many gaps in data collected by ships, creating a more detailed picture than was previously possible.
  • The map can help with the laying of underwater cables and the navigation of submarines, and is also useful to researchers aiming to learn more about underwater topography.
  • It is the most common landform on Earth, covering around 70% of the planet’s surface.
  • So far, only a quarter of the ocean floor has been mapped by ships utilising sonar.

By Justine Calma

Original Article