Global Seawater Oxygen-18 Database

Notes

Key to database notes:

  • A: Position was read off a graph of locations and therefore is not exact.
  • B: Salinity or d18O value was read off a graph. Again, it is therefore only an estimate of the measurement.
  • C: Data were corrected from publication (either a sign change, or a rescaling).
  • D: Correction of Epstein and Mayeda (1951) data to GEOSECS standard. dVSMOW = 1.04 dEM + 0.21 (extra +0.2 for Albatross points).
  • E: Correction of SMOW data to GEOSECS standard. dVSMOW = dSMOW + 0.07.
  • F: Correction of PDB data to VSMOW standard. dVSMOW = dPDB + 0.27.
  • G: Calibration to standard deep water mass = +1.0
  • H: Calibration to standard deep water mass = +0.3
  • I: Calibration to standard deep water mass = +0.4
  • J: Calibration to standard deep water mass = +0.1
  • K: Salinity was interpolated from nearby stations
  • L: Denotes data that is likely to be estaurine or river data from near the coast, or samples heavily influenced by meltwater.
  • M: Salinity derived from Chlorinity: S = 1.80655 Cl-
  • X: Denotes very anomalous data (possibly completely wrong), but also data from enclosed lagoons etc.

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