Human Tech Tree
Researched2000-2007 · Digital Age (1990 – 2015)

Earth & Cosmos / Earth, Climate & Environment

Argo Ocean Float Network

Autonomous floats drift, dive to 2,000 m and report temperature and salinity by satellite; by 2007 about 3,000 floats cover the world's ocean.

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Argo gave the first continuous global view of ocean heat, where most of the extra warmth from greenhouse gases ends up. Its data constrain climate models and the planet's energy imbalance.

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