Totten and Mertz Glacier Voyages - Phytoplankton Pigments - 2014/15 and 2016/17

This dataset contains phytoplankton pigment measurements for the Totten and Mertz Glacier regions, analysed using high performance liquid chromatography (HPLC). There were two voyages to this region. For the first voyage in 2014/15 a suite of pigments were analysed including chlorophyll a, chlorophyll b, chlorophyll c (c1, c2, c3), fucoxanthin, alloxanthin, gyroxanthin diester, 19'-butanoyloxyfucoxanthin, 19'-hexanoyloxyfucoxanthin, peridinin, prasinoxanthin, crocoxanthin, violaxanthin and zeaxanthin. For the second voyage in 2016/17 chlorophyll a was analysed only. Measurements were taken at 6 depths throughout the water-column at each station. Additional samples were taken whilst the ship was in transit to and from Antarctica (transit samples) using the underway seawater line with the intake at 7 m depth.The data are in two separate spreadsheets – one for each voyage (2014/15 and 2016/17). All pigment concentrations are in µg L-1. At CTD stations data is provided for 3-6 depths.

本数据集涵盖托滕冰川与默茨冰川区域的浮游植物色素检测数据，所有色素分析均采用高效液相色谱（high performance liquid chromatography, HPLC）方法完成。本区域共开展两次科考航次：2014/2015年的首次航次中，共分析了十余种色素，包括叶绿素a、叶绿素b、叶绿素c（c1、c2、c3）、岩藻黄素、别藻黄素、陀螺黄素二酯、19'-丁酰氧基岩藻黄素、19'-己酰氧基岩藻黄素、多甲藻黄素、绿藻黄素（prasinoxanthin）、克罗克黄素（crocoxanthin）、堇菜黄素（violaxanthin）与玉米黄素（zeaxanthin）。2016/2017年的第二次航次仅检测了叶绿素a。每个站位在整个水体柱层中选取6个深度开展测量。此外，在船舶往返南极的航渡过程中，通过进水深度为7米的走航海水采集管路采集了额外航渡样本。数据集包含两份独立电子表格，分别对应两次航次（2014/2015年与2016/2017年）。所有色素浓度的单位均为微克每升（µg L⁻¹）。在电导温度深度仪（Conductivity-Temperature-Depth, CTD）站位，提供了3至6个深度的检测数据。