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Response to Judi Lynn (Original post)

Sat Jun 27, 2020, 02:39 AM

2. Unknown currents in Southern Ocean have been observed with help of seals

JUNE 26, 2020
by University of Gothenburg



A Weddell seal collects data in the ocean while swimming. This information doesn’t only help marine sciences researchers, but also biologist, to understand the seals’ habitat better. Credit: Dan Costa

Using state-of-the-art ocean robots and scientific sensors attached to seals, researchers in Marine Sciences at the University of Gothenburg have for the first time observed small and energetic ocean currents in the Southern Ocean. The currents are critical at controlling the amount of heat and carbon moving between the ocean and the atmosphere—information vital for understanding our global climate and how it may change in the future.

Two new studies, one led by Associate Professor Sebastiaan Swart and the other led by Dr. Louise Biddle, both working at the University of Gothenburg, use highly novel techniques to collect rare data in the ocean both under and near the sea ice surrounding Antarctica (www.roammiz.com).

Ocean currents have significant effect

These papers present for the first time upper ocean currents of approximately 0.1-10 km in size. These currents, which are invisible to satellite and ship-based data, are seen to interact with strong Southern Ocean storms and with physical processes occurring under sea ice.

"Using the data collected by the seals, we're able to look at the impact these upper ocean currents have underneath the sea ice for the first time. It's a really valuable insight into what was previously completely unknown in the Southern Ocean," says Dr. Louise Biddle, Department of Marine Sciences, University of Gothenburg.

More:
https://phys.org/news/2020-06-unknown-currents-southern-ocean.html

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