Deep-Ocean Circulation in the Southwest Pacific Ocean Interior Estimates of the Mean Flow and Variability Using Deep Argo Data

Zilberman, N. V.; Roemmich, D. H.; Gilson, J.

doi:10.1029/2020gl088342

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Deep-Ocean Circulation in the Southwest Pacific Ocean Interior Estimates of the Mean Flow and Variability Using Deep Argo Data

2020
By Zilberman, N. V. ; Roemmich, D. H. ; Gilson, J.
Source: Geophysical Research Letters, 47(13), e2020GL088342

[PDF-2.42 MB]

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Details:

Journal Title:

Geophysical Research Letters
Personal Author:

Zilberman, N. V. ; Roemmich, D. H. ; Gilson, J.

Zilberman, N. V. ; Roemmich, D. H. ; Gilson, J. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research)
Description:

The spatial structure and time variability of the global deep-ocean circulation are poorly understood due to limited sampling below 2,000-m depth. A Deep Argo array deployed in 2016 has significantly increased oceanic measurements from the ocean surface to near the sea floor in the Southwest Pacific Basin interior. Deep Argo profiles collected between 2016 and 2019 show that 4.3–4.7 Sv between 1,500 and 4,800 m, relative to 4,800 m, of the Deep Western Boundary Current flowing along the Tonga Kermadec Ridge is redirected southward over the abyssal plain between the Tonga Kermadec Ridge and the East Pacific Rise. The southward recirculation of the Deep Western Boundary Current exhibits seasonality that may be influenced by Ekman pumping.
Keywords:

[+]

Deep-sea Ecology Deep-sea Sounding Deep-sea Temperature Ocean Circulation
Source:

Geophysical Research Letters, 47(13), e2020GL088342
DOI:

https://doi.org/10.1029/2020gl088342
Format:

PDF
Document Type:

Journal Article
Funding:

Grant no. NA15OAR4320071
Place as Subject:

South Pacific Ocean
License:

https://creativecommons.org/licenses/by/4.0/
Rights Information:

CC BY
Compliance:

CHORUS
Main Document Checksum:

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urn:sha256:917efc7d0fefd3f2ad3e0149b82ccdb6c3a7ae0fbf93a413218ba88fa3ab27a2
Download URL:

https://repository.library.noaa.gov/view/noaa/48633/noaa_48633_DS1.pdf
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