• Login
    View Item 
    •   DSpace Home
    • Institute's contributions
    • Scholarly literature
    • View Item
    •   DSpace Home
    • Institute's contributions
    • Scholarly literature
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Mesoscale process-induced variation of the West India coastal current during the winter monsoon

    Thumbnail
    View/Open
    Environ_Monit_Assess_187_508.pdf (3.901Mb)
    Date
    2015
    Author
    Jineesh, V.K.
    Muraleedharan, K.R.
    Lix, J.K.
    Revichandran, C.
    HareeshKumar, P.V.
    NaveenKumar, K.R.
    Metadata
    Show full item record
    Abstract
    This manuscript presents the analysis of current meter records at Kollam and Kannur along the 20-m isobaths during November-December 2005 Currents in the coastal waters are strongly influenced by winds (both local and remote forcing), tides, propagation of coastal Kelvin and Rossby waves, etc We hypothesize that the mesoscale (spatial scales of 10-500 km and temporal scale of 10-100 days) features in ocean are also competent to alter the characteristics of coastal currents to a large extent Analysis of sea level anomaly from the merged altimeter data reveals the existence of a large anticyclonic eddy in the southeastern Arabian Sea during the winter monsoon The eddy moves westward with an average speed of ~15 km day−1 c corresponding to an increase in sea level amplitude up to 28 cm Off southwest India, the poleward flow is along the western flank of this anticyclonic eddy and the geostrophic current completes the circulation around the eddy The eastward component of the geostrophic current at the northern edge of the eddy is bifurcated at ~9° N: one flowing towards north and the other towards south Current meter records at station Kollam revealed a dominant southward current due to the bifurcated southward component The bifurcated northward component coalesced with the poleward flow along the western flank of the anticyclonic eddy At Kannur, a poleward flow along the coast is responsible for a predominant northward trend in the observed current pattern during the initial phase of observation A reversal in the current direction is caused by the southward-flowing geostrophic current along the eastern flank of the subsequent anticyclonic eddy centered at 73.5° E and 13° N The stations were located at the eastern periphery of these anticyclonic eddies, where the mesoscale features overwhelm the seasonal characteristics of the West India Coastal Current (WICC).
    URI
    http://drs.nio.org/drs/handle/2264/7664
    Collections
    • Scholarly literature [9074]

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV
     

     

    Browse

    All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV