Three-dimensional structure of the mesoscale eddies in the Agulhas Current region from hydrological and altimetry data

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Three-dimensional structure of the mesoscale eddies in the Agulhas Current region from hydrological and altimetry data. / Sandalyuk, N. V.; Belonenko, T. V.

In: Russian Journal of Earth Sciences, Vol. 21, No. 4, ES4005, 07.2021.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{3249f371e89342f8b61dd6cc6c2ced4b,

title = "Three-dimensional structure of the mesoscale eddies in the Agulhas Current region from hydrological and altimetry data",

abstract = "In this work by implementing the method of colocalization the altimetry data and temperature and salinity profiles we provide a detailed study of the averaged thermohaline structure of the anticyclonic and cyclonic mesoscale eddies formed in the southern part of the Agulhas Current system. The observed intensification of eddy dissipation processes can be caused by the topographic barriers, such as the Agulhas Plateau or the Agulhas Ridge. In the eddies of both polarities significant temperature anomalies are concentrated within the distance of one radius from the eddy center and to the depth of ∼ 1500 m. The obtained averaged estimates of heat and salt transported by the Agulhas Rings is 2.38×1020 J and 4.79×1012 kg respectively. Westward propagation of the zonal eddy-induced transport for anticyclonic and cyclonic eddies is observed in the Agulhas Retroflection region, Cape Basin and in the central part of the shelf zone with the maximum values of 4 Sv/deg2 for anticyclonic eddies and 1.77 Sv/deg2 for cyclonic eddies.",

keywords = "Agulhas current, Agulhas rings, Altimetry, Mesoscale eddies, Three-dimensional structure, SOUTHEAST ATLANTIC-OCEAN, RINGS, SOUTHWEST, mesoscale eddies, TRANSPORT, EVOLUTION, EDDY, three-dimensional structure, Agulhas Rings, Agulhas Current, RETROFLECTION, altimetry",

author = "Sandalyuk, {N. V.} and Belonenko, {T. V.}",

year = "2021",

month = jul,

doi = "10.2205/2021ES000764",

language = "English",

volume = "21",

journal = "Russian Journal of Earth Sciences",

issn = "1681-1178",

publisher = "American Geophysical Union",

number = "4",

}

RIS

TY - JOUR

T1 - Three-dimensional structure of the mesoscale eddies in the Agulhas Current region from hydrological and altimetry data

AU - Sandalyuk, N. V.

AU - Belonenko, T. V.

PY - 2021/7

Y1 - 2021/7

N2 - In this work by implementing the method of colocalization the altimetry data and temperature and salinity profiles we provide a detailed study of the averaged thermohaline structure of the anticyclonic and cyclonic mesoscale eddies formed in the southern part of the Agulhas Current system. The observed intensification of eddy dissipation processes can be caused by the topographic barriers, such as the Agulhas Plateau or the Agulhas Ridge. In the eddies of both polarities significant temperature anomalies are concentrated within the distance of one radius from the eddy center and to the depth of ∼ 1500 m. The obtained averaged estimates of heat and salt transported by the Agulhas Rings is 2.38×1020 J and 4.79×1012 kg respectively. Westward propagation of the zonal eddy-induced transport for anticyclonic and cyclonic eddies is observed in the Agulhas Retroflection region, Cape Basin and in the central part of the shelf zone with the maximum values of 4 Sv/deg2 for anticyclonic eddies and 1.77 Sv/deg2 for cyclonic eddies.

AB - In this work by implementing the method of colocalization the altimetry data and temperature and salinity profiles we provide a detailed study of the averaged thermohaline structure of the anticyclonic and cyclonic mesoscale eddies formed in the southern part of the Agulhas Current system. The observed intensification of eddy dissipation processes can be caused by the topographic barriers, such as the Agulhas Plateau or the Agulhas Ridge. In the eddies of both polarities significant temperature anomalies are concentrated within the distance of one radius from the eddy center and to the depth of ∼ 1500 m. The obtained averaged estimates of heat and salt transported by the Agulhas Rings is 2.38×1020 J and 4.79×1012 kg respectively. Westward propagation of the zonal eddy-induced transport for anticyclonic and cyclonic eddies is observed in the Agulhas Retroflection region, Cape Basin and in the central part of the shelf zone with the maximum values of 4 Sv/deg2 for anticyclonic eddies and 1.77 Sv/deg2 for cyclonic eddies.

KW - Agulhas current

KW - Agulhas rings

KW - Altimetry

KW - Mesoscale eddies

KW - Three-dimensional structure

KW - SOUTHEAST ATLANTIC-OCEAN

KW - RINGS

KW - SOUTHWEST

KW - mesoscale eddies

KW - TRANSPORT

KW - EVOLUTION

KW - EDDY

KW - three-dimensional structure

KW - Agulhas Rings

KW - Agulhas Current

KW - RETROFLECTION

KW - altimetry

UR - http://www.scopus.com/inward/record.url?scp=85115102735&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/c48a78bf-d696-3388-aadf-6e45463fb99e/

U2 - 10.2205/2021ES000764

DO - 10.2205/2021ES000764

M3 - Article

AN - SCOPUS:85115102735

VL - 21

JO - Russian Journal of Earth Sciences

JF - Russian Journal of Earth Sciences

SN - 1681-1178

IS - 4

M1 - ES4005

ER -

ID: 85331509