THESIS
2022
1 online resource (xi, 72 pages) : illustrations (some color), color maps
Abstract
Oceanic coherent vortices are swirling bodies of water that play a crucial role in modulating the
ocean material transport and circulation. This graduation thesis focuses on the characteristics
of coherent vortices in the Argentine basin (AB), a key region for the Southern Ocean mode
water formation. An objective Lagrangian method (LAVD) was adopted to extract the coherent
vortices in the AB from 1993 to 2019 via satellite altimetry data. By comparing with results
obtained by the Eulerian method, we verified the accuracy and robustness of the LAVD method.
A sum of 6212 coherent vortices were detected, with their geographical distribution, polarity,
and migration patterns investigated. At last, we applied the same algorithm to SOSE dataset
and extracted the three-dimensional structure of...[
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Oceanic coherent vortices are swirling bodies of water that play a crucial role in modulating the
ocean material transport and circulation. This graduation thesis focuses on the characteristics
of coherent vortices in the Argentine basin (AB), a key region for the Southern Ocean mode
water formation. An objective Lagrangian method (LAVD) was adopted to extract the coherent
vortices in the AB from 1993 to 2019 via satellite altimetry data. By comparing with results
obtained by the Eulerian method, we verified the accuracy and robustness of the LAVD method.
A sum of 6212 coherent vortices were detected, with their geographical distribution, polarity,
and migration patterns investigated. At last, we applied the same algorithm to SOSE dataset
and extracted the three-dimensional structure of the eddies from 2013 to 2018.
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