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    Decadal Changes of Radiocarbon in the Surface Bay of Bengal: Three Decades after GEOSECS and One Decade after WOCE

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    Author
    Dutta, Koushik
    Prasad, G. V. Ravi
    Ray, Dinesh K.
    Raghav, Sanjeev
    Issue Date
    2010-01-01
    
    Metadata
    Show full item record
    Citation
    Dutta, K., Prasad, G. V. R., Ray, D. K., & Raghav, S. (2010). Decadal changes of radiocarbon in the surface Bay of Bengal: Three decades after GEOSECS and one decade after WOCE. Radiocarbon, 52(3), 1191-1196.
    Publisher
    Department of Geosciences, The University of Arizona
    Journal
    Radiocarbon
    Description
    From the 20th International Radiocarbon Conference held in Kona, Hawaii, USA, May 31-June 3, 2009.
    URI
    http://hdl.handle.net/10150/654194
    DOI
    10.1017/S0033822200046269
    Additional Links
    http://radiocarbon.webhost.uits.arizona.edu/
    Abstract
    Radiocarbon was measured in the surface seawater dissolved inorganic carbon (DIC) of the Bay of Bengal during November 2006. A meridional transect of the ∆14C in DIC was obtained from measurements in closely spaced samples collected roughly along 88E. The ∆14C of these samples ranged from 44 to 57.7 (mean 51.8 +/- 1.1, n = 12), and 38 at one station in the northern Bay of Bengal. The overall pattern of 14C distribution in DIC of surface Bay of Bengal during 2006 was roughly similar to that during the WOCE expedition of 1995. These results indicate a ∆14C decline rate of ~4 per decade since WOCE in the surface Bay of Bengal, which is much smaller compared to a decline rate of ~25 per decade observed in the 2 decades between the GEOSECS and WOCE expeditions, due to the smaller atmosphere-ocean ∆14C gradient.
    Type
    Proceedings
    text
    Language
    en
    ISSN
    0033-8222
    ae974a485f413a2113503eed53cd6c53
    10.1017/S0033822200046269
    Scopus Count
    Collections
    Radiocarbon, Volume 52, Number 3 (2010)

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