• 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.

    Dissolved aluminium in the surface microlayer of the eastern Arabian Sea

    Thumbnail
    View/Open
    Mar_Chem_42_85.pdf (753.6Kb)
    Date
    1993
    Author
    Narvekar, P.V.
    Singbal, S.Y.S.
    Metadata
    Show full item record
    Abstract
    Measurements of dissolved aluminium (Al) in surface microlayer (SML) samples from the eastern Arabian Sea during the southwest (summer) and northwast (winter) monsoon periods have revealed much higher concentrations (23-657 nmol kg sup(-1)) than in the sub-surface layer (SSL; collected at 1 m depth). Higher concentrations observed during the summer monsoon and directional trends in the distribution, with conentration maxima situated away from the influence of fluvial discharge, are best explainEd. by the atmospheric deposition of mineral dust aerosal and its subsequent dissolution in the surface seawater. The low Al concentrations in the SSL (11-296 nmol kg sup(-1)) varied in line with those in the SML. However, Al was significantly higher there than in the rest of the water column (up to 3000 m), indicating that much of the dissolved aerosal Al was removed in the upper few metres of the water column. The non-nutrient-type behaviour of dissolved Al did not support a mechanism of Al removal by biological uptake. High Al levels in the SML observed during the summer monsoon were associated with low primary productivity. The considerably lower values observed the winter monsoon, a priod of higher primary productivity in the Arabian Sea, could be due to removeal from solution by adsorption onto biogenic particles
    URI
    http://drs.nio.org/drs/handle/2264/2811
    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