Their calculations show that it will take more than 100,000 years to visualize all the sea bottom
People have noticed visually less than 0.001% of the global seed In the last 70 years, a percentage corresponding to an area of about one tenth of the size of Belgium. This finds a study published in the journal “Science Advances”.
The ocean has the main effects of anthropogenic climate change, and while it is well known for the impact of global warming on the surface of the sea and the shallow waters, less is understood by its influence on the deep ocean, that is, at a depth of 200 meters.
The researchers compared 43,681 recordings from submarine missions from 1958 onwards to 14 countries, 120 exclusive economic zones (EEZs) and the open seas. At best, the data recorded 0.001% of the marine bottom.
Research identifies that there are geographical inequalities in collected data, as most observations have been made within 200 nautical miles from the United States, Japan and New Zealand. The same three countries, as well as France and Germanythey had done together the 97.2% of all diving. “This small and biased sample is problematic when attempting to characterize, understand and manage a global ocean,” The authors note.
Their calculations show that it will take more than 100,000 years to portray all the sea bottom. “These estimates show that we need a fundamental change in the way we explore and study the world deep ocean”they end up.
Source: Skai
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