Vertical profiles of environmental parameters measured on discrete water samples collected with Niskin bottles at station TARA_056 during the Tara Oceans expedition 2009-2013

The Tara Oceans Expedition (2009-2013) was a global survey of ocean ecosystems aboard the Sailing Vessel Tara. It carried out extensive measurements of evironmental conditions and collected plankton (viruses, bacteria, protists and metazoans) for later analysis using modern sequencing and state-of-the-art imaging technologies. Tara Oceans Data are particularly suited to study the genetic, morphological and functional diversity of plankton. The present data set includes properties of seawater, particulate matter and dissolved matter that were measured from discrete water samples collected with Niskin bottles during the 2009-2013 Tara Oceans expedition. Properties include pigment concentrations from HPLC analysis (10 depths per vertical profile, 25 pigments per depth), the carbonate system (Surface and 400m; pH (total scale), CO2, pCO2, fCO2, HCO3, CO3, Total alkalinity, Total carbon, OmegaAragonite, OmegaCalcite, and dosage Flags), nutrients (10 depths per vertical profile; NO2, PO4, N02/NO3, SI, quality Flags), DOC, CDOM, and dissolved oxygen isotopes. The Service National d'Analyse des Paramètres Océaniques du CO2, at the Université Pierre et Marie Curie, determined CT and AT potentiometrically. More than 200 vertical profiles of these properties were made across the world ocean. DOC, CDOM and dissolved oxygen isotopes are available only for the Arctic Ocean and Arctic Seas (2013).

塔拉海洋科考航次（2009-2013年）是一场依托帆船塔拉号（Sailing Vessel Tara）开展的全球海洋生态系统普查。该航次系统测定了海洋环境参数，并采集了浮游生物（plankton，涵盖病毒、细菌、原生生物与后生动物）样本，后续将通过现代测序技术与顶尖成像技术开展分析工作。塔拉海洋数据集尤其适合用于研究浮游生物的遗传、形态与功能多样性。
本数据集收录了2009-2013年塔拉海洋科考航次期间，通过尼斯金采水器（Niskin bottles）采集的离散海水样本所测得的海水、颗粒物与溶解物相关属性。具体参数包括：通过高效液相色谱（HPLC）分析得到的色素浓度（每个垂直剖面设置10个采样深度，每个深度对应25种色素）；碳酸盐体系参数（覆盖表层与400米深度：总尺度pH、CO₂、CO₂分压（pCO₂）、CO₂逸度（fCO₂）、碳酸氢根（HCO₃⁻）、碳酸根（CO₃²⁻）、总碱度、总碳、文石饱和度（OmegaAragonite）、方解石饱和度（OmegaCalcite），以及剂量标记（dosage Flags））；营养盐参数（每个垂直剖面设置10个采样深度，涵盖亚硝酸盐（NO₂）、磷酸盐（PO₄）、亚硝态氮/硝态氮（NO₂/NO₃）、硅酸盐（SI），以及质控标记（quality Flags））；此外还包含溶解有机碳（DOC）、有色溶解有机物（CDOM）与溶解氧同位素数据。
隶属于皮埃尔和玛丽·居里大学（Université Pierre et Marie Curie）的法国国家海洋二氧化碳参数分析服务中心（Service National d'Analyse des Paramètres Océaniques du CO2），采用电位滴定法测定了总二氧化碳（CT）与总碱度（AT）。本次航次在全球海洋范围内完成了超过200条上述参数的垂直剖面测量。其中，溶解有机碳、有色溶解有机物与溶解氧同位素数据仅来自2013年采集的北冰洋与北极海域样本。