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Tracking EAC warm core eddies

Gabriela Semolini Pilo, PhD candidate at UTAS/CSIRO

28 April, 2016

The EAC is the ocean boundary current that flows from Queensland to northern NSW. The current usually separates from coast somewhere north of Sydney and then heads west. During the separation process, the EAC forms a large meander that can close off and release large, O(100km)  rotating structures called eddies. These eddies carry the warm and salty EAC waters as they move along the “Eddy Avenue”, from their formation region down to Tasmania. They can bring warm water to swimmers in Bondi but also relocate some tropical species down to temperate Tasmanian waters. What happens to these eddies when they reach Tasmania? Do they just dissipate or do they keep going? [more]