Table 5.
Compilation of nitrate diffusive fluxes. Nitrate diffusive fluxes previously reported in the literature in several domains (D): tropical and subtropical regions (T) (40º N – 40ºS), Mediterranean Sea (M), shelf seas and upwelling regions (Te), and Polar regions (P).
| D | Reference | Region | diffNO3 (mmolN m−2 d−1) |
|---|---|---|---|
| T | Lewis et al.68 | Subtropical Northeast Atlantic | 0.14 (0.002–0.89) |
| Planas et al.69* | North, equatorial and south Atlantic | 0.38 (0.00004–2.11) | |
| Dietze et al.70* | Subtropical North Atlantic | 0.28 (0.14–0.41) | |
| Painter et al.20 | Subtropical Northeast Atlantic | 0.06 (0.04–0.09) | |
| Ledwell et al.71† | Sargasso Sea | 0.1 | |
| Sandel et al.73 | Tropical Atlantic | 2.4 (0.51–8.2) | |
| Carr et al.74 | Equatorial Pacific | 1.5 (0.01–3) | |
| Kaneko et al.75 | Subtropical North Pacific | 0.18 (0.02–0.35) | |
| Bouruet-Aubertot et al.76 | Subtropical South Pacific | 0.007 (0.003–0.011) | |
| Ellwood et al.77 | Subtropical South Pacific | 0.84 (0.02–1.65) | |
| Du et al.78 | South China Sea | 0.05 (0.00004–0.1) | |
| M | Bonnet et al.19 | Mediterranean Sea | 0.002–0.013 |
| Te | Horne et al.77 | Georges Bank | 0.12 (0.05–0.18) |
| Hales et al.78 | New England (Shelf Break) | 0.22 (0.17–0.26) | |
| Cyr et al.79 | Lower St. Lawrence Estuary | 0.12–300 | |
| Zhang et al.80 | Florida Straits | 42 (0.002–83.7) | |
| Forryan et al.13 | Iceland Basin | 0.13 (0.08–0.22) | |
| Martin et al.81 | Porcupine Abyssal Plain | 0.09 (0.05–0.16) | |
| Bendtsen & Richardson82 | North Sea (Shelf Edge) | 0.25 (0.1–2) | |
| Law et al.83 † | North Atlantic | 1.8 | |
| Rippeth et al.84 | Irish Sea | 1.5 | |
| Williams et al.85 | Irish Sea | 0.31 (0.22–0.43) | |
| Sharples et al.11 | Celtic Sea (Shelf Edge) | 5.1 (1.3–9) | |
| Williams et al.86 | Celtic Sea | 12 (1.3–22) | |
| Sharples et al.87 | English Channel | 2 (0.8–3.2) | |
| Tweddle et al.88 | Celtic Sea (Jones Bank) | 26.4 (0.8–52) | |
| Schafstall et al.89 | Mauritanian Upwelling Region | 5.5 (1–10.1) | |
| Arcos-Pulido et al.90 | Cape Ghir upwelling region | 0.09 | |
| Hales et al.91 | Oregon Shelf | 8.6 | |
| Li et al.92 | California current | 1.3 (0–41.5) | |
| Sharples et al.93 | New Zealand Shelf | 12 | |
| P | Liu et al.94 | China Sea (Shelf Edge) | 0.22 (0.02–1.54) |
| Sundfjord et al.95 | Barents Sea | 1.3 (0.15–2.4) | |
| Law et al.96 † | Antarctic Circumpolar Current | 0.17 | |
| Bourgault et al.97 | Amundsen Gulf | 0.5 (0.3–0.8) | |
| Randelhoff et al.98 | Artic Ocean | 0.5 (0.3–0.5) |
The mean (and the range, between brackets) of estimates reported at each study are indicated. When the mean was not provided this value was calculated considering the published range. Publications reporting the dataset included in this analysis are not listed. When several frontiers for the calculation were used, the nitracline was choose. A molar mass of 62 gmol−1 was used for converting nitrate concentration from mg to mmol used in some of the references listed. * indicates estimates derived from acoustic Doppler and † from tracer release experiments.