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

Journal Article · Thu Oct 01 00:00:00 EDT 2020 · Deep Sea Research Part 1. Oceanographic Research Papers

DOI:https://doi.org/10.1016/j.dsr.2020.103308· OSTI ID:1640282

Weijer, Wilbert ; Barthel, Alice; Veneziani, Milena ; Steiner, Hannah

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.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE; USDOE Office of Science (SC). Biological and Environmental Research (BER)
• Grant/Contract Number: 89233218CNA000001
• OSTI ID: 1640282
• Alternate ID(s): OSTI ID: 1716795
• Report Number(s): LA-UR-19-31078; S0967063720300960; 103308; PII: S0967063720300960
• Journal Information: Deep Sea Research Part 1. Oceanographic Research Papers, Journal Name: Deep Sea Research Part 1. Oceanographic Research Papers Vol. 164 Journal Issue: C; ISSN 0967-0637
• Publisher: Elsevier
• Country of Publication: France
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
Earth Sciences
Zapiola anticyclone
Argentine basin
Lagrangian particle tracking