Sánchez-Noguera, Celeste; Lange, Ines D; Cortés, Jorge; Jiménez, Carlos; Wild, Christian; Rixen, Tim: Carbonate chemistry from the Pacific coast of Costa Rica near Playas del Coco (2013-2014) [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.920881 (dataset in review), In: Sánchez-Noguera, C et al.: Carbonate chemistry and benthic coverage from three locations along the Pacific coast of Costa Rica (2013-2014) [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.920884 (dataset in review)
Abstract:
Methods/devices for discrete water samples: AT and CT were measured with a VINDTA 3C system (Versatile instrument for the determination of total dissolved inorganic carbon and titration alkalinity), coupled with a UIC CO2 coulometer (model CM5015) and a METROHM© Titrino (model 716 DMS). Instruments were calibrated with Dickson Certified Reference Material (Batch 127). The fCO2, pH and aragonite saturation state (Ωa) were calculated with CO2SYS as a function of measured parameters (AT, CT, salinity, nutrients and SWT), with dissociation constants of Mehrbach et al. (1973) for carbonic acid as refit by Dickson and Millero (1987), and Dickson (1990) for boric acid. Five inorganic nutrients were measured through a reagent based method with a Lachat′sQuikChem© 8500 Series 2 Flow Injection Analysis (FIA) System, following the Standard Operation Procedure from Centro de Investigación en Ciencias del Mar y Limnología (CIMAR) of the University of Costa Rica (PON Nut-08).
Further details:
Dickson, Andrew G (1990): Thermodynamics of the dissociation of boric acid in synthetic sea water from 273.15 to 318.15 K. Deep-Sea Research Part A. Oceanographic Research Papers, 37(5), 755-766, https://doi.org/10.1016/0198-0149(90)90004-F
Dickson, Andrew G; Millero, Frank J (1987): A comparison of the equilibrium constants for the dissociation of carbonic acid in seawater media. Deep Sea Research Part A. Oceanographic Research Papers, 34(10), 1733-1743, https://doi.org/10.1016/0198-0149(87)90021-5
Mehrbach, C; Culberson, C H; Hawley, J E; Pytkowicx, R M (1973): Measurement of the apparent dissociation constants of carbonic acid in seawater at atmospheric pressure. Limnology and Oceanography, 18(6), 897-907, https://doi.org/10.4319/lo.1973.18.6.0897
Project(s):
Coverage:
Latitude: 10.539220 * Longitude: -85.765530
Date/Time Start: 2013-07-29T09:31:00 * Date/Time End: 2014-01-28T08:51:00
Minimum DEPTH, water: 0.5 m * Maximum DEPTH, water: 6.0 m
Event(s):
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Size:
1200 data points