6 research outputs found
Geochemical tracers of N<sub>2</sub>-fixation along the DIAPICNA cruise transect.
<p>Longitudinal cross-sections of (A) nitrate concentration, (B) δ<sup>15</sup>N<sub>NO3</sub> signal, (C) PN isotopic signature and (D) Δ(15,18)—see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0150827#pone.0150827.e002" target="_blank">eq (2)</a>. The position of the Azores Front is indicated by a dashed line, and station i.d. is given on top.</p
Sea Surface Height and geostrophic currents during the DIAPICNA cruise.
<p>Station locations (open circles) overlaid on AVISO altimetry-derived geostrophic currents centered between 26/07/2011 and 01/08/2011, with color scale indicating the Sea Surface Height (SSH) in m.</p
Physical parameters monitored along the DIAPICNA cruise track.
<p>(A) Temperature (°C) longitudinal cross-section, with the position of the Azores Front deduced from the 16°C isotherm at 200m depth (dotted lines); (B) TS diagrams for stations A-E, with overlaid σ<sub>θ</sub> density isolines. NACW: North Atlantic Central Water; 15MW: 15°C Mode Water; 18MW: 18°C Mode Water; SAIW: SubArctic Intermediate Water; MedW: Mediterranean Water; LSW: Labrador Sea Water. The black box indicates possible increased influence of Mediterranean Waters at 800–1000m in stations D and E.</p
Significant correlations between C-, N<sub>2</sub>-fixations, UCYN abundance and physical-chemical conditions.
<p>Significant correlations between C-, N<sub>2</sub>-fixations, UCYN abundance and physical-chemical conditions.</p
Distribution of Carbon fixation and Organic Carbon in <3 μm and >3 μm large particles.
<p>(A) C-fixation rates (μmol m<sup>-3</sup> d<sup>-1</sup>), and (B) longitudinal cross-sections of POC (μmol L<sup>-1</sup>) depending on the particle size fraction (left: <3 μm; right: >3 μm). The Azores Front position is marked by a bold line.</p