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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.

 

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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.