Mathematics – Logic
Scientific paper
Sep 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30qoce8l&link_type=abstract
Geophysical Research Letters, Volume 30, Issue 17, pp. OCE 8-1, CiteID 1902, DOI 10.1029/2003GL017902
Mathematics
Logic
12
Oceanography: Biological And Chemical: Trace Elements, Oceanography: General: Water Masses, Oceanography: General: Continental Shelf Processes
Scientific paper
Concentrations of dissolved iron (DFe, 0.2μm) were determined at two stations in the Biscay Abyssal Plain (North East Atlantic) in March 2002. DFe concentrations in the surface layer (0.23-0.34 nM) were typical of winter conditions in this area. At 1000 m, DFe concentrations increased to 0.62-0.86 nM. This feature is consistent with the production of DFe by remineralization of the biogenic material. However, at this depth, Mediterranean Outflow Water (MOW) could be an additional source of DFe. Below 2500 m, DFe concentrations were constant (0.75 +/- 0.04 nM). An interesting feature of the profiles was the intermediate maximum of DFe (1.19-1.12 nM) around 2000 m, associated with the Labrador Sea Water (LSW). We suggest that the iron enrichment of LSW occurred when this water mass reached the continental margin, likely in the vicinity of the Goban plateau. Vertical distributions were highly dependent on water masses encountered.
Achterberg Eric P.
Blain Stéphane
de Baar Hein J. W.
Laan P.
Laës A.
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