Sea ice density and salinity profiles measured during RV POLARSTERN cruise PS131

During the Polarstern cruise PS131 in July and August 2022 in the marginal ice zone in the Fram Strait and at two ice stations on fast ice (Greenland), ice core samples were obtained with a 9 cm Kovacs corer on ice stations. This dataset contains vertical density and salinity profiles obtained by cutting the core in 4 cm intervals (for the upper 40cm) and 10 cm intervals for the remaining part. The samples were weighted on the ice. Together with the known volume densities can be calculated for each sample. They were then taken to the ship for later salinity measurements (Greisinger G1410 salinometer). For most of the samples, the whole ice layer was sampled, but for some, only the upper 40 cm were measured. However, the measured total ice thickness is included in the dataset. For more information of these measurements the user is referred to Chapter 8 of the cruise report.

2022年7月至8月，极星号（Polarstern）科考船执行PS131航次期间，于弗拉姆海峡（Fram Strait）边缘冰区以及格陵兰固定冰上的2处冰站开展科考作业，使用直径9厘米的科瓦克（Kovacs）冰芯钻采集了冰芯样本。本数据集包含垂直密度与盐度剖面数据，冰芯截取方式为：上表层40厘米按4厘米间隔分样，剩余冰段则按10厘米间隔分样。样品在冰面完成称重，结合已知的样品体积即可计算出每份样品的体积密度。随后样品被运回科考船，后续使用格雷辛格G1410（Greisinger G1410）盐度计完成盐度测量。多数样品完成了全冰层采样，但部分样品仅测量了其上表层40厘米的参数。不过数据集中已收录实测的总冰厚信息。如需了解本次测量的更多细节，可参阅本航次报告第8章。