Oxygen isotope, dissolved oxygen, and salinity data from JC211 CTD Niskin bottle samples, February-March 2021.

This dataset contains the oxygen isotope (O-18), dissolved oxygen, and salinity data from water samples collected from Niskin bottles on the CTD rosette on cruise JC211, February-March 2021. This cruise was formed from four separate tasks: the Polar Ocean Ecosystems Time Series (POETS) north of South Georgia; observations near iceberg A-68A southeast of South Georgia; the A23 oceanographic transect from the shelf break southeast of South Georgia, south through the eastern Scotia Sea, and into the northern Weddell Sea; and the SR1b oceanographic transect from Elephant Island off the tip of the Antarctic Peninsula to Burdwood Bank south of the Falkland Islands.

本数据集收录2021年2月至3月JC211航次中，借助温盐深仪采水瓶阵列（CTD rosette）上的尼斯金采水瓶（Niskin bottles）采集的水样的氧同位素（O-18）、溶解氧及盐度数据。本次航次包含四项独立科考任务：南乔治亚岛以北的极地海洋生态系统时间序列（Polar Ocean Ecosystems Time Series, POETS）科考；南乔治亚岛东南部A-68A冰山附近的观测作业；从南乔治亚岛东南部陆架坡折出发，向南横跨斯科舍海东部，进入威德尔海北部的A23海洋断面科考；以及从南极半岛顶端附近的象岛出发，前往福克兰群岛以南伯德伍德浅滩（Burdwood Bank）的SR1b海洋断面科考。