Zapiola Gyre, Velocities and Mixing, New Argo Insights

Johnson, Gregory C.; King, Brian A.

doi:10.1029/2023jc019893

i

Zapiola Gyre, Velocities and Mixing, New Argo Insights

Supporting Files

2023
By Johnson, Gregory C. ; King, Brian A.

Details

Journal Title:

Journal of Geophysical Research: Oceans
Personal Author:

Johnson, Gregory C. ; King, Brian A.
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; PMEL (Pacific Marine Environmental Laboratory)
Description:

The Zapiola Gyre is a large, full-depth, bottom-intensified, anticyclonic recirculation in the Argentine Basin. It rotates around the Zapiola Drift, a sedimentary rise standing a few hundred meters above the abyssal plain, tall enough to create closed contours of planetary potential vorticity. Hence the gyre has been posited to be an eddy-driven free mode that is damped primarily by the bottom Ekman layer. It describes approximately a zonally elongated ellipse with a zonal semi-major axis of ∼440 km and a meridional semi-minor axis of ∼125 km. Its volume transport is estimated here at ∼110 (±25) × 10 6 m 3 s −1. It has peak depth-averaged meridional velocities of ∼0.06 and ∼0.08 m s −1, and peak depth-averaged zonal velocities
Keywords:

Earth And Planetary Sciences (miscellaneous) Geochemistry And Petrology Geophysics Oceanography Space And Planetary Science Earth And Planetary Sciences (miscellaneous) Geochemistry And Petrology Space And Planetary Science Earth And Planetary Sciences (miscellaneous) Geochemistry And Petrology Space And Planetary Science
Source:

Journal of Geophysical Research: Oceans, 128(6)
DOI:

https://doi.org/10.1029/2023jc019893
ISSN:

2169-9275 ; 2169-9291
Format:

PDF
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
License:

https://creativecommons.org/publicdomain/zero/1.0/
Rights Information:

CC0 Public Domain
Compliance:

Library
Main Document Checksum:

urn:sha256:53df9074445acabfda794cd19f22917655cdb253411cfb5cb3a47ef613e49c01
Download URL:

https://repository.library.noaa.gov/view/noaa/53572/noaa_53572_DS1.pdf
File Type:

[PDF - 6.11 MB ]

Machine readable version (XML)

Download

ON THIS PAGE

Details Supporting Files

The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners. As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.