anonymous 16352 Carbonate chemistry and dissolved oxygen in the Gulf of Papagayo (Culebra Bay), Costa Rica Salinity, pH, sea water temperature (SWT) and pCO2 was measured at a water-depth of ~ 3 m at the Marina Papagayo (85°39'21.41"W; 10°32'32.89"N) in Costa Rica in April 2009. SWT and the pCO2 was measured by using SUNDANS, which was developed by "Marine Analytics and Data" (MARIANDA, Germany, www.marianda.com) according to the recommendations of the 2002 underway pCO2 system workshop in Miami, Florida. Salinity and the dissolved oxygen concentrations were determined by using WTW probes (Cond3310 and Multi 340i). The pH was measured using an Orion ROSS electrode and an Orion StarTM. The Orion ROSS electrode was calibrated by using NBS standards and re-calibrated to total scale by using the RCM standards (Batch 82: http://andrew.ucsd.edu/co2qc/). Omega_Aragonite (Ωa), DIC, and TA were calculated based on the ƒCO2 and the pH. Rixen et al. 2012 provides more detailed information. 16360 https://doi.org/10.1594/PANGAEA.924670 2020-11-12T08:39:17+0000 2020 14104 18884 18886 18952 16375 Rixen, Tim (2020): Carbonate chemistry and dissolved oxygen in the Gulf of Papagayo (Culebra Bay), Costa Rica [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.924670 19886 14940 15093 19884 19882 19880 14999