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Salgueiro, Emilia; Voelker, Antje H L; de Abreu, Lucia; Abrantes, Fatima F; Meggers, Helge; Wefer, Gerold (2010): (Figure 3d) Export production reconstruction based on planktonic foraminiferal sampled in surface sediments. PANGAEA, https://doi.org/10.1594/PANGAEA.743090, In supplement to: Salgueiro, E et al. (2010): Temperature and productivity changes off the western Iberian margin during the last 150 ky. Quaternary Science Reviews, 29(5-6), 680-695, https://doi.org/10.1016/j.quascirev.2009.11.013

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Abstract:
To reconstruct Export Productivity (Pexp), 27 taxonomic categories of the planktonic foraminifera census data were used with the modern analog technique SIMMAX 28 (Pflaumann et al., 1996, doi:10.1029/95PA01743; 2003, doi:10.1029/2002PA000774). To the 26 taxonomic groups widely used and listed in Kucera et al. (2005, doi:10.1016/j.quascirev.2004.07.014), Turborotalita humilis was added in our calibration as it is associated with the PCC source region (Meggers et al., 2002, doi:10.1016/S0967-0645(02)00103-0). The modern analog file is based on the Iberian margin database (Salgueiro et al., 2008, doi:10.1016/j.marmicro.2007.09.003) combined with the North Atlantic surface samples used by the MARGO project (Kucera et al., 2005). This results in a total of 999 analogs for Pexp. Modern oceanic primary productivity (PP) is obtained for each site by averaging 12 monthly primary productivity values for a 8-year period (1978-1986) that were estimated from satellite color data (CZCS) and gridded at 0.5° latitude - longitude fields (Antoine et al., 1996, doi:10.1029/95GB02832). Export Productivity (Pexp) was calculated from the PP values following the empirical relationship Pexp = PP**2/400 for primary production below 200 gC/m**2/yr, and Pexp = PP/2 for primary production above 200 gC/m2/yr (Eppley and Peterson, 1979, doi:10.1038/282677a0; Sarnthein et al., 1988, doi:10.1029/PA003i003p00361). The residuals gives the differences between satellite based Pexp and foraminiferal Pexp.
Coverage:
Median Latitude: 37.486651 * Median Longitude: -24.576600 * South-bound Latitude: 0.300000 * West-bound Longitude: -96.333000 * North-bound Latitude: 79.985000 * East-bound Longitude: 13.005000
Minimum DEPTH, sediment/rock: m * Maximum DEPTH, sediment/rock: m
Size:
6993 data points

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