Helium isotope and neon data from seawater samples collected June 2018 during FS Alkor cruise AL510 in the Baltic Sea

This dataset encompasses 145 seawater samples collected from 23 hydrographic stations during the AL510 cruise in the Baltic Sea aboard the research vessel Alkor, from June 6 to June 11, 2018. Helium isotopes and neon measurements were conducted in the Noble Gas Laboratory of the Lamont-Doherty Earth Observatory on a dedicated, fully automated VG5400 mass spectrometer following the procedures described by Ludin et al. (1998). Helium and neon samples were collected from Niskin bottles in copper tubes (40 ml) sealed by stainless steel pinch-off clamps. Shipboard sampling, gas extraction, and isotopic analysis were done by Tobias (Toby) Koffman with data processing by Peter Schlosser.

本数据集涵盖2018年6月6日至11日，由“阿尔科尔号”（Alkor）科考船在波罗的海执行AL510航次期间，于23个水文站采集的145份海水样本。氦同位素与氖气检测工作于拉蒙特-多尔蒂地球观测站（Lamont-Doherty Earth Observatory）的稀有气体实验室（Noble Gas Laboratory）开展，使用一台专用全自动VG5400型质谱仪（VG5400 mass spectrometer），并遵循Ludin等人1998年所述的实验流程。氦与氖样本通过尼斯金采水器（Niskin bottles）采集至40毫升铜管中，以不锈钢夹断密封钳密封。船基采样、气体萃取与同位素分析工作由托比亚斯（托比）·科夫曼（Tobias (Toby) Koffman）完成，数据处理由彼得·施洛瑟（Peter Schlosser）负责。