Nutrient data along the May 2017 GO-SHIP A02 transect

The GO-SHIP A02 survey was completed in April/May 2017 on the RV Celtic Explorer, travelling from St. John's, Newfoundland, Canada, across the North Atlantic to Galway, Ireland. A total of 67 stations were occupied along the A02 transect, with 1231 nutrient samples analysed for total oxidised nitrogen (TOxN), nitrite, phosphate and silicate on a Skalar San continuous flow auto-analyser. Sampling, sample preservation and analytical procedures on both systems followed methods outlined in the GO-SHIP guidelines for nutrient analysis at sea (Hydes et al., 2010), while also incorporating existing laboratory methods and quality control. TOxN, silicate and phosphate were analysed at sea, typically within 12 hours of sampling.

This dataset, which includes results from 288 samples along 12 stations, was processed at Dalhousie University, Canada in addition to those analysed by the Marine Institute, Ireland which are available as a separate dataset (doi:10/cms5).

GO-SHIP A02航次于2017年4月至5月由“凯尔特探索者号”（RV Celtic Explorer）研究船执行，航行路线从加拿大纽芬兰的圣约翰斯出发，横跨北大西洋抵达爱尔兰戈尔韦。该A02断面共布设67个观测站位，使用Skalar San型连续流动自动分析仪完成了1231份营养盐样品的分析，检测指标涵盖总氧化氮（total oxidised nitrogen, TOxN）、亚硝酸盐、磷酸盐与硅酸盐。本航次的采样、样品保存与两套分析系统的操作流程，均遵循GO-SHIP海洋现场营养盐分析指南（Hydes等，2010），同时结合了现有实验室方法与质量控制体系。其中总氧化氮、硅酸盐与磷酸盐通常在采样后12小时内完成现场分析。
本数据集包含沿12个站位采集的288份样品的检测结果，除由爱尔兰海洋研究所（Marine Institute, Ireland）分析的样品外（该部分数据已作为独立数据集发布，DOI：10/cms5），其余样品均由加拿大达尔豪西大学（Dalhousie University）完成处理。