Chlorophyll K-Axis Voyage V3 2015/16

Size fractionated chlorophyll a data (total and less than 20 µm) analysed using high performance liquid chromatography (HPLC). Underway samples were taken using a seawater line in the oceanographic lab on RSV Aurora Australis (approx. depth 4 m). CTD samples were taken using Niskin bottles attached to a CTD rosette. Six depths were sampled per station, based on fluorescence profiles from the CTD. Two of the two of six samples always included both near-surface (approximately 10 m) and the depth of the chlorophyll maximum where applicable. HPLC analyses were conducted according to the method of Wright et al. (2010). Column chlorophylls (µg L-1) and integrated chlorophylls (mg m-2) are shown in two separate tabs within the Excel spreadsheet.

采用高效液相色谱法（high performance liquid chromatography，HPLC）分析的分级粒径叶绿素a数据（涵盖总叶绿素a及粒径小于20 μm的叶绿素a）。走航样品通过搭载于RSV Aurora Australis号海洋学实验室的海水采样管线采集，采样深度约为4米。CTD（Conductivity, Temperature, Depth）采水样品由安装于CTD采水架的尼斯金采水器采集；每个站位依据CTD获取的荧光剖面选取6个深度开展采样。6份样品中的2份始终同时包含近表层（约10米）以及适用条件下的叶绿素浓度最大值所处深度。本次HPLC分析依照Wright等人（2010）提出的方法进行。液相色谱柱测定的叶绿素浓度（单位：μg·L⁻¹）与积分叶绿素总量（单位：mg·m⁻²）的数据分别存储于Excel表格的两个独立工作表中。