Raw stable water isotope measurements in water vapour at 8 m a.s.l. on the starboard side of the ship, made in the austral summer of 2016/2017 during the Antarctic Circumnavigation Expedition (ACE).

<strong>Dataset abstract</strong> This dataset includes the raw data of stable water vapour isotope (δ18O, δ2H, deuterium excess) and water vapour mixing ratio measurements at a height of approximately 8 meters above sea level taken in the Southern Ocean during the Antarctic Circumnavigation Expedition (ACE) from November 2016 to April 2017 using a Picarro laser spectrometer L2130-i mounted on the starboard side of the ship. L2130-i was operated only during two months in February and March 2017 from Hobart (Australia) to Cape Town (South Africa). This data has to be calibrated using the calibration runs and applying an appropriate calibration procedure following the IAEA guide lines. Two similar datasets also measuring stable water isotopes (SWIs) in water vapour were collected during the same expedition and can be distinguished from this dataset due to the height of the measurement collection (at 8 m a.s.l and 13.5 m a.s.l). The three ACE datasets of SWIs in water vapour are described and compared in Thurnherr et al. (2020). <strong>Dataset contents</strong> leg*/HIDS2018-yyyymmdd-hhmmssZ-DataLog_User.dat, data file, comma-separated values data_file_header.txt, metadata, text format README.txt, metadata, text format <strong>Dataset license</strong> This raw stable water isotope measurements dataset is made available under the Creative Commons Attribution 4.0 International License (CC BY 4.0) whose full description can be found at https://creativecommons.org/licenses/by/4.0数据集摘要 本数据集涵盖了南极环绕航行探险（Antarctic Circumnavigation Expedition, ACE）于2016年11月至2017年4月期间，在南大洋海拔约8米处采集的稳定水汽同位素（stable water vapour isotope，含δ¹⁸O、δ²H及氘过量参数）与水汽混合比原始测量数据。测量设备为安装在船舶右舷的Picarro激光光谱仪L2130-i。该设备仅在2017年2月至3月这两个月间，于从澳大利亚霍巴特前往南非开普敦的航程中运行。本数据集需结合校准运行数据，并依据国际原子能机构（International Atomic Energy Agency, IAEA）的指导方针应用适配的校准流程进行校正。 本次探险期间还采集了另外两组类似的水汽稳定同位素（stable water isotopes, SWIs）数据集，可通过测量采集高度与本数据集区分：本数据集的采集高度为海拔8米，其余两组的采集高度分别为海拔13.5米。三套ACE航次的水汽稳定同位素数据集已在Thurnherr等人（2020）的研究中完成描述与对比。 数据集内容 leg*/HIDS2018-yyyymmdd-hhmmssZ-DataLog_User.dat：数据文件，格式为逗号分隔值（comma-separated values, CSV） data_file_header.txt：元数据，文本格式 README.txt：元数据，文本格式 数据集许可 本原始稳定水同位素测量数据集采用知识共享署名4.0国际许可协议（Creative Commons Attribution 4.0 International License, CC BY 4.0）发布，完整许可条款可通过https://creativecommons.org/licenses/by/4.0 查询。