Lateral transport of Mn in the north-east Pacific Gyre oxygen minimum

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Martin, J. H., & Knauer, G. A. (1985). Lateral transport of Mn in the north-east Pacific Gyre oxygen minimum. Nature, 314(6011), 524-526. doi:10.1038/314524a0
Metadata
TitleLateral transport of Mn in the north-east Pacific Gyre oxygen minimum
AuthorsH. Martin, A. Knauer
AbstractAccurate measurement of the concentration and fluxes of a wide range of dissolved and participate materials in the water column is need to quantify the global cycling of heat, water and chemical constituents 1. An important aspect of any Global Ocean Flux study is the lateral transport of materials at basin or global scales; to study lateral transport, useful tracers of water-mass movements must be identified. Here we report that Mn is rapidly removed (-0.027 μmol m -3 yr -1) from the north-east Pacific Gyre dissolved-Mn maximum onto biogenic particles sinking through the oxygen minimum (500-1,100 m). To support removal, dissolved Mn must be supplied within the oxygen minimum at net advective horizontal transport rates of ̃0.6-0.9 cm s -1. The high affinity of dissolved Mn for particles, together with the readily discernible differences in inshore/offshore dissolved distributions, indicate that Mn Is a chemical tracer with great potential in future studies of large-scale circulation processes in the ocean.
JournalNature
Date1985
Start page524
End page526
ISSN00280836
NoteCited By (since 1996):14

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