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About HADAL

Hadal trenches are located at 6-11 km ocean depth and are currently less accessible to humans than the Moon. Representing the most extreme and remote of marine environments, they remain virtually unexplored and continue to challenge - and drive - technological advances towards deep sea exploration and the search for new marine resources.

 

The overall aim for HADAL is to explore life, its function and importance, in the deepest and least explored realm of the global ocean.

- Ronnie Glud, Professor and Director of HADAL


Hadal Trenches
  • Hadal trenches are located at 6-11 km ocean depth
  • Resulting from tectonic plate movement, they may reach thousands of kilometers in length and be up to 60 km wide. 
  • Hot-spots of microbial activity occur within the trenches.
  • Little is known about the role of hadal trenches and their associated - potentially undiscovered life forms - in global element cycles.