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ESSD | Articles | Volume 11, issue 1
Earth Syst. Sci. Data, 11, 355–374, 2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Earth Syst. Sci. Data, 11, 355–374, 2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Review article 11 Mar 2019

Review article | 11 Mar 2019

A rare intercomparison of nutrient analysis at sea: lessons learned and recommendations to enhance comparability of open-ocean nutrient data

Triona McGrath et al.
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Cited articles  
Aoyama, M., Becke, S., Dai, M., Daimon, H., Gordon, L. I., Kasai, H., Kerouel, R., Kress, N., Masten, D., Murata, A., Nagai, N., Ogawa, H., Ota, H., Saito, H., Saito, K., Shimizu, T., Takano, H., Tsuda, A., Yokouchi, K., and Youenou, A.: Recent comparability of Oceanographic Nutrients Data: Results of a 2003 Intercomparison Exercise using Reference Materials, Anal. Sci., 23, 1151–1154, 2007. 
Aoyama, M., Abad, M., Aguilar-Islas, A., Ashraf, P. M., Azetsu-Scott, K., Bakir, A., Becker, S., Benoit-Cattin-Breton, A., Berdalet, E., Björkman, K., Blum, M., de Santis Braga, E., Caradec, F., Cariou, T., Chiozzini, V. G., Collin, K., Coppola, L., Crump, M., Dai, M., Daniel, A., Davis, C., Solis, M. E., Edelvang, K., Faber, D., Fidel, R., Fonnes, L. L., Frank, J., Frew, P., Funkey, C., Gallia, R., Giani, M., Gkritzalis, T., Grage, A., Greenan, B., Gundersen, K., Hashihama, F., Ibar, V. F. C., Jung, J., Kang, S. H., Karl, D., Kasai, H., Kerrigan, L. A., Kiyomoto, Y., Knockaert, M., Kodama, T., Koo, J., Kralj, M., Kramer, R., Kress, N., Lainela, S., Ledesma, J., Lewandowska, J., López, M. C. A., López Garcia, P., Ludwichowski, K., Mahaffey, C., Malien, F., Margiotta, F., Márquez, A., Mawji, E. W., McCormack, T., McGrath, T., Le Merrer, Y., Møgster, J. S., Nagai, N., Naik, H., Normandeau, C., Ogawa, H., Ólafsdottir, S. R., van Ooijen, J., Paranhos, R., Park, M., Parmentier, K., Passarelli, A., Payne, C., Pierre-Duplessix, O., Povazhnyi, V., Quesnel, S., Raimbault, P., Rees, C., Rember, R., Rho, T. K., Ringuette, M., Riquier, E. D., Rodriguez, A., Roman, R. E., Rosero, C., Woodward, E. M. S., Saito, S., Schuller, D., Segal, Y., Silverman, J., Sørensen, D., Stedmon, C. A., Stinchcombe, M., Sun, J., Thamer, P., Urbini, L., Wallace, D., Walsham, P., Wang, L., Waniek, J., Yamamoto, H., Yoshimura, T., and Zhang, J.-Z.: IOCCP-JAMSTEC 2018 Inter-laboratory Calibration Exercise of a Certified Reference Material for Nutrients in Seawater. International Ocean Carbon Coordination Project (IOCCP) Report Number 1/2018, Japan Agency for Marine-Earth Science and Technology, Tokosuka, Japan, 2018. 
Becker, S., Aoyama, M., Woodward, E. M. S., Bakker, K., Coverly, S., Mahaffey, C., and Tanhua, T.: GO-SHIP Repeat Hydrography Nutrient Manual 2019: The precise and accurate determination of dissolved inorganic nutrients in seawater, Continuous Flow Analysis methods and laboratory practices, Final Report, available at:, last access: 5 March 2019. 
Broecker, W. S. and Peng, T. H.: Tracers in the Sea, 2543, Lamont-Doherty Geological Observatory, Columbia University, New York, 1982. 
Short summary
We report results from an intercomparison exercise on the analysis of nutrients at sea. Two independent teams (Marine Institute, Ireland and Dalhousie University Canada) carried out an analysis of a GO-SHIP hydrographic section. The cruise provided a unique opportunity to assess the likely comparability of nutrient data collected following GO-SHIP protocols. Datasets were high quality and compared well but highlighted a number of issues relevant to the comparability of global nutrient data.
We report results from an intercomparison exercise on the analysis of nutrients at sea. Two...