Table 2.
Measured parameters for the sampled river and seawater endmembers.
| Rivers | Latitude (°N) | Longitude (°E) | Sample date | Sonde/CTD salinity | δ18O (‰) | TA (μmol kg−1) | TIC (μmol kg−1) | TIC/TA |
|---|---|---|---|---|---|---|---|---|
| Mississippi | 29.9997 | −90.4538 | 26 Jun 2019 | 0.36 | −6.53 | 2421 | 2426 | 1.002 |
| 18 Jul 2019 | 0.30 | −6.26 | 2448 | 2420 | 0.9886 | |||
| Pearl | 30.7919 | −89.8225 | 27 Jun 2019 | 0.04 | −3.96 | 530 | 549 | 1.036 |
| 18 Jul 2019 | 0.02 | −3.51 | 288 | 532 | 1.847 | |||
| East Pearl | 30.4624 | −89.6948 | 27 Jun 2019 | 0.03 | −3.62 | 179 | 473 | 2.642 |
| Jourdan | 30.3296 | −89.4244 | 25 Jun 2019 | 0.22 | −2.72 | 396 | 441 | 1.114 |
| Wolf | 30.3784 | −89.2318 | 25 Jun 2019 | 0.03 | −4.24 | 87 | 240 | 2.759 |
| Pascagoula | 30.611 | −88.6410 | 25 Jun 2019 | 0.03 | −4.48 | 189 | 392 | 2.074 |
| Mobile | 31.0879 | −87.9784 | 25 Jun 2019 | 0.07 | −3.98 | 861 | 817 | 0.9489 |
| Seawater | 28.73161 | −88.4509 | 16 Oct 2018 | 33.97 | 1.1 | 2315 | 2024 | 0.8743 |