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    Dynamic biogeochemical provinces in the global ocean

    193353_193353.pdf (4.645Mb)
    Access Status
    Open access
    Authors
    Reygondeau, G.
    Longhurst, A.
    Martinez, E.
    Beaugrand, G.
    Antoine, David
    Maury, O.
    Date
    2013
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Reygondeau, Gabriel and Longhurst, Alan and Martinez, Elodie and Beaugrand, Gregory and Antoine, David and Maury, Olivier. 2013. Dynamic biogeochemical provinces in the global ocean. Global Biogeochemical Cycles. 27 (4): pp. 1046-1058.
    Source Title
    Global Biogeochemical Cycles
    DOI
    10.1002/gbc.20089
    ISSN
    0886-6236
    Remarks

    Copyright © 2013 American Geophysical Union

    URI
    http://hdl.handle.net/20.500.11937/22391
    Collection
    • Curtin Research Publications
    Abstract

    In recent decades, it has been found useful to partition the pelagic environment using the concept of biogeochemical provinces, or BGCPs, within each of which it is assumed that environmental conditions are distinguishable and unique at global scale. The boundaries between provinces respond to features of physical oceanography and, ideally, should follow seasonal and interannual changes in ocean dynamics. But this ideal has not been fulfilled except for small regions of the oceans. Moreover, BGCPs have been used only as static entities having boundaries that were originally established to compute global primary production. In the present study, a new statistical methodology based on non-parametric procedures is implemented to capture the environmental characteristics within 56 BGCPs. Four main environmental parameters (bathymetry, chlorophyll a concentration, surface temperature, and salinity) are used to infer the spatial distribution of each BGCP over 1997–2007. The resulting dynamic partition allows us to integrate changes in the distribution of BGCPs at seasonal and interannual timescales, and so introduces the possibility of detecting spatial shifts in environmental conditions.

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