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    The eddy kinetic energy budget in the Red Sea

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    Zhan_et_al-2016-Journal_of_Geophysical_Research__Oceans.pdf
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    Description:
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    Type
    Article
    Authors
    Zhan, Peng cc
    Subramanian, Aneesh C.
    Yao, Fengchao cc
    Kartadikaria, Aditya R. cc
    Guo, Daquan cc
    Hoteit, Ibrahim cc
    KAUST Department
    Beacon Development Company
    Earth Fluid Modeling and Prediction Group
    Earth Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Red Sea Research Center (RSRC)
    Date
    2016-07-10
    Online Publication Date
    2016-07-10
    Print Publication Date
    2016-07
    Permanent link to this record
    http://hdl.handle.net/10754/614396
    
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    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.
    Citation
    The eddy kinetic energy budget in the Red Sea 2016 Journal of Geophysical Research: Oceans
    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).
    Publisher
    American Geophysical Union (AGU)
    Journal
    Journal of Geophysical Research: Oceans
    DOI
    10.1002/2015JC011589
    Additional Links
    http://doi.wiley.com/10.1002/2015JC011589
    ae974a485f413a2113503eed53cd6c53
    10.1002/2015JC011589
    Scopus Count
    Collections
    Articles; Red Sea Research Center (RSRC); Physical Science and Engineering (PSE) Division; Earth Science and Engineering Program

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