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Title: The Zapiola Anticyclone: A Lagrangian study of its kinematics in an eddy-permitting ocean model

Abstract

The Zapiola Anticyclone (ZA) is a strong, O(100 Sv), barotropic vortex in the center of the Argentine Basin that is tied to a bathymetric feature called the Zapiola Rise. It is regionally significant for two reasons: first, the strong vortex is a dynamical barrier that inhibits the lateral exchange of water, and hence has the ability to trap water for a long period of time. Second, its dynamics is governed by a balance between eddy-driven mass convergence and divergent Ekman transport, which gives rise to strong downwelling and Ekman pumping into the bottom boundary layer.

Authors:
ORCiD logo; ; ORCiD logo;
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE; USDOE Office of Science (SC). Biological and Environmental Research (BER)
OSTI Identifier:
1640282
Alternate Identifier(s):
OSTI ID: 1716795
Report Number(s):
LA-UR-19-31078
Journal ID: ISSN 0967-0637; S0967063720300960; 103308; PII: S0967063720300960
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Published Article
Journal Name:
Deep Sea Research Part 1. Oceanographic Research Papers
Additional Journal Information:
Journal Name: Deep Sea Research Part 1. Oceanographic Research Papers Journal Volume: 164 Journal Issue: C; Journal ID: ISSN 0967-0637
Publisher:
Elsevier
Country of Publication:
France
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; Earth Sciences; Zapiola anticyclone; Argentine basin; Lagrangian particle tracking

Citation Formats

Weijer, Wilbert, Barthel, Alice, Veneziani, Milena, and Steiner, Hannah. The Zapiola Anticyclone: A Lagrangian study of its kinematics in an eddy-permitting ocean model. France: N. p., 2020. Web. doi:10.1016/j.dsr.2020.103308.
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Weijer, Wilbert, Barthel, Alice, Veneziani, Milena, & Steiner, Hannah. The Zapiola Anticyclone: A Lagrangian study of its kinematics in an eddy-permitting ocean model. France. https://doi.org/10.1016/j.dsr.2020.103308
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Weijer, Wilbert, Barthel, Alice, Veneziani, Milena, and Steiner, Hannah. Thu . "The Zapiola Anticyclone: A Lagrangian study of its kinematics in an eddy-permitting ocean model". France. https://doi.org/10.1016/j.dsr.2020.103308.
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@article{osti_1640282,
title = {The Zapiola Anticyclone: A Lagrangian study of its kinematics in an eddy-permitting ocean model},
author = {Weijer, Wilbert and Barthel, Alice and Veneziani, Milena and Steiner, Hannah},
abstractNote = {The Zapiola Anticyclone (ZA) is a strong, O(100 Sv), barotropic vortex in the center of the Argentine Basin that is tied to a bathymetric feature called the Zapiola Rise. It is regionally significant for two reasons: first, the strong vortex is a dynamical barrier that inhibits the lateral exchange of water, and hence has the ability to trap water for a long period of time. Second, its dynamics is governed by a balance between eddy-driven mass convergence and divergent Ekman transport, which gives rise to strong downwelling and Ekman pumping into the bottom boundary layer.},
doi = {10.1016/j.dsr.2020.103308},
journal = {Deep Sea Research Part 1. Oceanographic Research Papers},
number = C,
volume = 164,
place = {France},
year = {2020},
month = {10}
}
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Journal Article:
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https://doi.org/10.1016/j.dsr.2020.103308
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