Laboratoire National de Métrologie et d'Essais (LNE), Paris, 75015, France
Aix Marseille Université, CNRS, IRD, MIO, Marseille, 13288, France
Samir Alliouane
Sorbonne Université, CNRS, Laboratoire d'Océanographie de Villefranche, LOV, Villefranche-sur-Mer, 06230, France
Thierry Cariou
IRD, UAR191, Instrumentation, Moyens Analytiques, Observatoires en Géophysique et Océanographie (IMAGO), Technopôle de Brest-Iroise, Plouzané, 29280, France
Jonathan Fin
Laboratoire LOCEAN/IPSL, Sorbonne Université-CNRS-IRD-MNHN, Paris, 75005, France
present address: Institut des Sciences de la Terre, Grenoble, 38058, France
Paola Fisicaro
Laboratoire National de Métrologie et d'Essais (LNE), Paris, 75015, France
Measuring total alkalinity in seawater is essential for understanding and monitoring the ocean carbonate system. To improve the reliability of these measurements, we developed reference materials and tested them in an inter-laboratory comparison. We also thoroughly quantified, for the first time, the uncertainty of the standard measurement method. These results, as well as the key metrological tools developed, support more accurate long-term monitoring of the ocean carbonate system.
Measuring total alkalinity in seawater is essential for understanding and monitoring the ocean...