Voyage | Site | T (°C) | S | DO (cm3 dm–3) | DOsat (%) | Eh (mV) | pH | SO42– (mmol dm–3) | H2S (μmol dm–3) | PO43– (μmol dm–3) | Fe(II) (μmol dm–3) |
---|---|---|---|---|---|---|---|---|---|---|---|
VIII 2015 | P1 | 7.27 | 13.37 | 0.86 | 11 | 162 | 7.81 | 16.19 | 1.10 | 12.56 | 0.13 |
P1A | 7.32 | 13.21 | 1.43 | 18 | 224 | 7.80 | 14.90 | 0.00 | 8.21 | 0.18 | |
P1B | 7.22 | 13.39 | 1.51 | 19 | 247 | 7.78 | 15.59 | 0.00 | 12.66 | 0.23 | |
II 2016 | P1 | 6.32 | 12.31 | 0.58 | 7 | 92 | 7.90 | 4.99 | 27.22 | 27.27 | 0.42 |
P1A | 6.63 | 11.44 | 1.17 | 15 | 194 | 7.90 | 11.04 | 17.80 | 24.66 | 0.51 | |
P1B | 6.35 | 11.45 | 1.37 | 17 | 217 | 7.88 | 10.63 | 20.85 | 25.68 | 0.53 |
Region | Estimation method | FPO43– (μmol m–2 hr–1) | References |
---|---|---|---|
Gullmarsfjorden | Porewater gradient calculations | 5.42 | |
Gulf of Finland | 0.002–0.07 | |
|
Gulf of Gdansk | –0.1–7.9 | |
|
Gdansk Deep | 5.3–5.7 | |
|
2.12–2.56 | |
||
Puck Bay | 0.04–3.17 | |
|
Gotland Basin | Chamber incubations | –0.13–15.67 | |
8.33–9.58 | |
||
Gullmarsfjorden | Porewater gradient calculations | 0.83 | |
Gulf of Finland | Sediment core incubation | 3.93 | |
Gulf of Finland | Chamber incubations | 5.84 fluxes of dissolved total iron |
|
0.21 fluxes of dissolved total iron |
|
||
Vistula Lagoon | 4.16 fluxes of dissolved total iron |
|
Voyage | Site | Porosity | Diffusion coefficient in sediment (10–6 cm2 s–1) | Concentration gradient in surface sediment (δC δz–1) (μmol dm–3cm–1) | Benthic flux (μmol m–2 hr–1) | |||
---|---|---|---|---|---|---|---|---|
PO43– | Fe(II) | PO43– | Fe(II) | FPO43– | FFe(II) | |||
VIII 2015 | PI | 0.975 | 5.034 | 4.932 | 9.468 | 0.018 | 1.67 | 0.31 × 10–2 |
P1A | 0.975 | 4.145 | 4.060 | 18.57 | 0.046 | 2.70 | 0.62 × 10–2 | |
P1B | 0.975 | 5.040 | 4.937 | 8.618 | 0.029 | 1.53 | 0.50 × 10–2 | |
II 2016 | P1 | 0.983 | 4.321 | 4.233 | 10.645 | 0.021 | 1.63 | 0.31 × 10–2 |
P1A | 0.983 | 4.322 | 4.234 | 16.888 | 0.078 | 2.58 | 1.17 × 10–2 | |
P1B | 0.983 | 4.323 | 4.233 | 16.580 | 0.084 | 2.54 | 1.25 × 10–2 |