The eddy kinetic energy budget in the Red Sea

Handle URI:
http://hdl.handle.net/10754/614396
Title:
The eddy kinetic energy budget in the Red Sea
Authors:
Zhan, Peng ( 0000-0002-3996-7011 ) ; Subramanian, Aneesh C.; Yao, Fengchao ( 0000-0002-8218-0150 ) ; Kartadikaria, Aditya R. ( 0000-0002-4385-5573 ) ; Guo, Daquan ( 0000-0003-1101-9834 ) ; Hoteit, Ibrahim ( 0000-0002-3751-4393 )
Abstract:
The budget of eddy kinetic energy (EKE) in the Red Sea, including the sources, redistributions and sink, is examined using a high-resolution eddy-resolving ocean circulation model. A pronounced seasonally varying EKE is identified, with its maximum intensity occurring in winter, and the strongest EKE is captured mainly in the central and northern basins within the upper 200 m. Eddies acquire kinetic energy from conversion of eddy available potential energy (EPE), from transfer of mean kinetic energy (MKE), and from direct generation due to time-varying (turbulent) wind stress, the first of which contributes predominantly to the majority of the EKE. The EPE-to-EKE conversion occurs almost in the entire basin, while the MKE-to-EKE transfer appears mainly along the shelf boundary of the basin (200 miso-bath) where high horizontal shear interacts with topography. The EKE generated by the turbulent wind stress is relatively small and limited to the southern basin. All these processes are intensified during winter, when the rate of energy conversion is about four to five times larger than that in summer. The EKE is redistributed by the vertical and horizontal divergence of energy flux and the advection of the mean flow. As a main sink of EKE, dissipation processes is ubiquitously found in the basin. The seasonal variability of these energy conversion terms can explain the significant seasonality of eddy activities in the Red Sea. This article is protected by copyright. All rights reserved.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Red Sea Research Center (RSRC)
Citation:
The eddy kinetic energy budget in the Red Sea 2016 Journal of Geophysical Research: Oceans
Publisher:
Wiley-Blackwell
Journal:
Journal of Geophysical Research: Oceans
Issue Date:
9-Jun-2016
DOI:
10.1002/2015JC011589
Type:
Article
ISSN:
21699275
Sponsors:
The research reported in this manuscript was supported by King Abdullah University of Science and Technology (KAUST) and made use of the resources of the Supercomputing Laboratory and computer clusters at KAUST. The data used in this study may be obtained from the authors upon request (ibrahim.hoteit@kaust.edu.sa).
Additional Links:
http://doi.wiley.com/10.1002/2015JC011589
Appears in Collections:
Articles

Full metadata record

DC FieldValue Language
dc.contributor.authorZhan, Pengen
dc.contributor.authorSubramanian, Aneesh C.en
dc.contributor.authorYao, Fengchaoen
dc.contributor.authorKartadikaria, Aditya R.en
dc.contributor.authorGuo, Daquanen
dc.contributor.authorHoteit, Ibrahimen
dc.date.accessioned2016-06-23T09:21:16Z-
dc.date.available2016-06-23T09:21:16Z-
dc.date.issued2016-06-09-
dc.identifier.citationThe eddy kinetic energy budget in the Red Sea 2016 Journal of Geophysical Research: Oceansen
dc.identifier.issn21699275-
dc.identifier.doi10.1002/2015JC011589-
dc.identifier.urihttp://hdl.handle.net/10754/614396-
dc.description.abstractThe budget of eddy kinetic energy (EKE) in the Red Sea, including the sources, redistributions and sink, is examined using a high-resolution eddy-resolving ocean circulation model. A pronounced seasonally varying EKE is identified, with its maximum intensity occurring in winter, and the strongest EKE is captured mainly in the central and northern basins within the upper 200 m. Eddies acquire kinetic energy from conversion of eddy available potential energy (EPE), from transfer of mean kinetic energy (MKE), and from direct generation due to time-varying (turbulent) wind stress, the first of which contributes predominantly to the majority of the EKE. The EPE-to-EKE conversion occurs almost in the entire basin, while the MKE-to-EKE transfer appears mainly along the shelf boundary of the basin (200 miso-bath) where high horizontal shear interacts with topography. The EKE generated by the turbulent wind stress is relatively small and limited to the southern basin. All these processes are intensified during winter, when the rate of energy conversion is about four to five times larger than that in summer. The EKE is redistributed by the vertical and horizontal divergence of energy flux and the advection of the mean flow. As a main sink of EKE, dissipation processes is ubiquitously found in the basin. The seasonal variability of these energy conversion terms can explain the significant seasonality of eddy activities in the Red Sea. This article is protected by copyright. All rights reserved.en
dc.description.sponsorshipThe research reported in this manuscript was supported by King Abdullah University of Science and Technology (KAUST) and made use of the resources of the Supercomputing Laboratory and computer clusters at KAUST. The data used in this study may be obtained from the authors upon request (ibrahim.hoteit@kaust.edu.sa).en
dc.language.isoenen
dc.publisherWiley-Blackwellen
dc.relation.urlhttp://doi.wiley.com/10.1002/2015JC011589en
dc.rightsThis is the peer reviewed version of the following article: Zhan, P., Subramanian, A. C., Yao, F., Kartadikaria, A. R., Guo, D. and Hoteit, I. (2016), The eddy kinetic energy budget in the Red Sea. J. Geophys. Res. Oceans., which has been published in final form at http://doi.wiley.com/10.1002/2015JC011589. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.en
dc.titleThe eddy kinetic energy budget in the Red Seaen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.identifier.journalJournal of Geophysical Research: Oceansen
dc.eprint.versionPost-printen
dc.contributor.institutionClarendon Laboratory; University of Oxford; Oxford UKen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorZhan, Pengen
kaust.authorYao, Fengchaoen
kaust.authorKartadikaria, Aditya R.en
kaust.authorGuo, Daquanen
kaust.authorHoteit, Ibrahimen
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