Table 2 Average trends obtained with the seasonally detrended data the in situ temperature (T in °C yr−1), salinity (S in yr−1), Total Alkalinity (TA in µmol kg−1 yr−1), salinity-normalized alkalinity (nTA in µmol kg−1 yr−1), total dissolved inorganic carbon (DIC in µmol kg−1 yr−1), salinity-normalized dissolved inorganic carbon (nDIC in µmol kg−1 yr−1), in situ pH in total scale (pHT yr−1), total hydrogen ion concentrations ([H+]T in picomol kg−1 yr−1), ion carbonate concentration excess over aragonite saturation (exCO3= in µmol kg−1 yr−1), and anthropogenic CO2. The errors of the trends are included. Intercalated rows show p-level and R2 in parenthesis.
From: Contrasting drivers and trends of ocean acidification in the subarctic Atlantic
Layer | St | T | S | TA | nTA | DIC | nDIC | pHT | [H+]T | exCO3= | Canth |
|---|---|---|---|---|---|---|---|---|---|---|---|
Surface | IS | 0.034 ± 0.009 | 0.004 ± 0.001 | 0.15 ± 0.07 | −0.14 ± 0.05 | 0.94 ± 0.13 | 0.68 ± 0.11 | −2.58 ± 0.22 | 44.7 ± 3.6 | −0.443 ± 0.080 | 1.15 ± 0.06 |
0.06 (0.12) | 0.03 (0.21) | 0.17 (0.04) | 0.13 (0.06) | 0.02 (0.31) | 0.03 (0.24) | 0.0070 (0.56) | 0.0064 (0.58) | 0.03 (0.21) | 0.0029 (0.75) | ||
IRM | 0.063 ± 0.005 | 0.004 ± 0.001 | 0.22 ± 0.04 | −0.04 ± 0.04 | 0.49 ± 0.10 | 0.24 ± 0.10 | −1.70 ± 0.19 | 32.6 ± 3.4 | −0.125 ± 0.070 | 0.93 ± 0.03 | |
0.006 (0.58) | 0.02 (0.30) | 0.03 (0.19) | 0.54 (0.01) | 0.04 (0.16) | 0.16 (0.05) | 0.0124 (0.40) | 0.0110 (0.43) | 0.27 (0.03) | 0.0009 (0.90) | ||
Subsurface | IS | 0.014 ± 0.002 | 0.001 ± 0.000 | 0.03 ± 0.03 | −0.03 ± 0.02 | 0.78 ± 0.03 | 0.73 ± 0.03 | −2.26 ± 0.08 | 43.2 ± 1.6 | −0.417 ± 0.022 | 1.00 ± 0.03 |
0.03 (0.22) | 0.09 (0.09) | 0.67 (0.01) | 0.41 (0.02) | 0.0019 (0.82) | 0.0021 (0.80) | 0.0013 (0.87) | 0.0014 (0.87) | 0.0027 (0.77) | 0.0010 (0.90) | ||
IRM | 0.050 ± 0.003 | 0.004 ± 0.000 | 0.22 ± 0.03 | −0.02 ± 0.02 | 0.49 ± 0.03 | 0.27 ± 0.04 | −1.50 ± 0.08 | 31.6 ± 1.7 | −0.134 ± 0.030 | 1.00 ± 0.03 | |
0.0044 (0.65) | 0.012 (0.40) | 0.0207 (0.28) | 0.70 (0.01) | 0.0037 (0.69) | 0.02 (0.27) | 0.0026 (0.76) | 0.0028 (0.75) | 0.05 (0.14) | 0.0008 (0.91) | ||
Intermediate | IS | 0.002 ± 0.001 | 0.000 ± 0.000 | −0.04 ± 0.02 | −0.01 ± 0.02 | 0.52 ± 0.02 | 0.54 ± 0.02 | −1.52 ± 0.06 | 30.2 ± 1.2 | −0.303 ± 0.013 | 0.70 ± 0.04 |
0.12 (0.06) | 0.08 (0.10) | 0.30 (0.02) | 0.90 (0.00) | 0.0019 (0.82) | 0.0017 (0.84) | 0.0016 (0.84) | 0.0017 (0.84) | 0.0018 (0.83) | 0.0033 (0.73) | ||
IRM | 0.043 ± 0.003 | 0.003 ± 0.000 | 0.18 ± 0.03 | −0.01 ± 0.02 | 0.51 ± 0.03 | 0.33 ± 0.04 | −1.54 ± 0.07 | 32.9 ± 1.6 | −0.162 ± 0.028 | 0.90 ± 0.03 | |
0.0058 (0.59) | 0.011 (0.42) | 0.03 (0.24) | 0.89 (0.00) | 0.0034 (0.71) | 0.0128 (0.39) | 0.0022 (0.79) | 0.0024 (0.78) | 0.03 (0.22) | 0.0012 (0.88) | ||
Deep | IS | 0.005 ± 0.000 | 0.000 ± 0.000 | −0.04 ± 0.02 | −0.02 ± 0.02 | 0.39 ± 0.02 | 0.41 ± 0.02 | −1.23 ± 0.05 | 25.5 ± 1.0 | −0.231 ± 0.010 | 0.38 ± 0.03 |
0.0015 (0.86) | 0.01 (0.41) | 0.23 (0.03) | 0.75 (0.01) | 0.0029 (0.75) | 0.0027 (0.76) | 0.0016 (0.85) | 0.0016 (0.84) | 0.0019 (0.82) | 0.0050 (0.64) | ||
IRM | 0.028 ± 0.003 | 0.002 ± 0.000 | 0.13 ± 0.02 | 0.00 ± 0.02 | 0.71 ± 0.02 | 0.58 ± 0.03 | −1.95 ± 0.04 | 44.2 ± 1.0 | −0.306 ± 0.018 | 0.73 ± 0.04 | |
0.012 (0.42) | 0.012 (0.41) | 0.03 (0.23) | 1.00 (0.00) | 0.0009 (0.90) | 0.0020 (0.81) | 0.0005 (0.94) | 0.0005 (0.94) | 0.0033 (0.71) | 0.0029 (0.74) |
