CFC, and noble gas measurements during POLARSTERN cruise PS82 (ANT-XXIX/9)

The tracer data set was carefully checked for accurate measurements and outliers. According to the WOCE standards the following flags were applied to each measurement: ? = flag 3 = doubtful; / = flag 4 = bad, # = flag 6 = mean of replicates.
Noble gases (3He, 4He, 20Ne): We took 540 water samples for stable noble gas isotopes (3He, 4He, Ne) in copper tubes from 68 stations. In the IUP Bremen noble gas lab the samples were processed in a first step with a UHV (ultra high vacuum) gas extraction system. The required vacuum conditions are achieved by a rotary pump and an oil diffusion pump. To maintain contamination-free samples, the extraction system is checked for leaks on each sample separately. Sample gases are transferred via water vapour into a glass ampoule kept at liquid nitrogen temperature. Quality checks of this sample preparation line are done on a routine basis. This includes special vacuum checks and preparing accurately defined samples for internal control measurement. […]

该追踪数据集经过精心校验以确保测量数据的准确性及去除异常值。依据世界海洋环流实验（WOCE）的标准，对每一测量数据应用了以下标记：? = 标记3 = 可疑；/ = 标记4 = 不良，# = 标记6 = 复制均值。稀有气体（3He、4He、20Ne）：我们于68个站点采集了540个水样，以获取稳定的稀有气体同位素（3He、4He、Ne）数据，采样容器为铜管。在不来梅IUP稀有气体实验室，首先采用超高压（UHV）气体提取系统对样品进行处理。通过旋转泵和油扩散泵实现所需的真空条件。为确保样品无污染，对提取系统进行单独的漏气检查。样品气体通过水蒸气转移至保持液氮温度的玻璃安瓿中。该样品制备线的质量检查是常规操作，包括特殊的真空检查以及为内部控制测量准备精确定义的样品。