Phytoplankton pigment concentrations of seawater sampled during the Antarctic Circumnavigation Expedition (ACE) during the Austral Summer of 2016/2017.

<strong>Dataset abstract</strong> This dataset contains phytoplankton pigment concentrations sampled during the Antarctic Circumnavigation Expedition (ACE) Leg 1-3 and analysed using high performance liquid chromatography. Water samples were collected from the underway seawater supply every 3 hours and at multiple depths from select CTD (conductivity, temperature and depth) rosette deployments. Pigment concentrations have been quality controlled. This circumpolar dataset contains the main pigment concentrations of phytoplankton and can be used to infer phytoplankton biomass and class composition. <strong>Dataset contents</strong> ace_phytoplankton_pigments_20200511CURRSGCMR.csv, data file, comma-separated values ace_phytoplankton_pigments_lod.csv, metadata, comma-separated values ace_phytoplankton_pigment_concentrations_change_log.txt, metadata, text data_file_header.txt, metadata, text README.txt, metadata, text Pigment concentration values below the limit of detection are reported with fill value ‘NaN’. Any null values are reported with fill value ‘NaN’. <strong>Change log</strong> <strong>v1.1</strong><br> - Added statement to ReadMe in original data collection statement acknowledging analysis performed by Celine Dimier<br> - Added statement to Acknowledgements section of DOI acknowledging analysis performed by Celine Dimier<br> - Metadata for samples have been updated: AT/ACE/2/1/28/1026/DA/13 A_C07N17 and AT/ACE/1/1/14/402/DA/10<br> - Corrected ship name to R/V Akademik Tryoshnikov<br> - Corrected citation DOI for one minute cruise track <strong>v1.0 </strong><br> - Initial release of phytoplankton pigment concentration dataset.<strong>数据集摘要</strong> 本数据集涵盖南极环极航行考察（Antarctic Circumnavigation Expedition, ACE）第1至3航次采集的浮游植物色素浓度数据，采用高效液相色谱法（High Performance Liquid Chromatography, HPLC）完成分析。研究人员每3小时从走航海水供应系统采集水样，并通过选定的CTD（电导率-温度-深度，Conductivity, Temperature and Depth）采水器布放获取多深度层水样。所有色素浓度数据均经过质量控制流程校验。本次环极数据集包含浮游植物主要色素浓度信息，可用于反演浮游植物生物量及其类群组成。 <strong>数据集内容</strong> ace_phytoplankton_pigments_20200511CURRSGCMR.csv：数据文件，格式为逗号分隔值（CSV） ace_phytoplankton_pigments_lod.csv：元数据文件，格式为逗号分隔值（CSV） ace_phytoplankton_pigment_concentrations_change_log.txt：元数据文件，纯文本格式 data_file_header.txt：元数据文件，纯文本格式 README.txt：元数据文件，纯文本格式 注：低于检出限的色素浓度值以填充值"NaN"标注，所有空值亦以"NaN"填充。 <strong>变更日志</strong> <strong>v1.1</strong> - 在ReadMe文档的原始数据采集说明部分新增声明，鸣谢Celine Dimier完成的数据分析工作 - 在DOI对应的致谢章节新增声明，鸣谢Celine Dimier完成的数据分析工作 - 更新部分样品元数据：AT/ACE/2/1/28/1026/DA/13 A_C07N17 与 AT/ACE/1/1/14/402/DA/10 - 修正船名，更正为"R/V Akademik Tryoshnikov" - 修正了1分钟航迹对应的引用DOI <strong>v1.0</strong> - 首次发布浮游植物色素浓度数据集。