Polygon experiment

The POLYGON experiment was a pioneer experiment in oceanography conducted in the middle of the Atlantic Ocean during the 1970s.^[1][2] The experiment, led by Leonid Brekhovskikh, was the first to establish the existence of so-called mesoscale eddies, eddies at the 100 km (60 mi) and 100-day scale, which triggered the "mesoscale revolution".^[1] The existence of mesoscale eddies was predicted by Henry Stommel in the 1960s,^[3] but there was no way to observe them with traditional sampling methods.^[1]