Surface dissolved oxygen/argon saturation ratio measured on HLY21TD transit from Seward, AK (USA) to Nuuk, Greenland via the Northwest Passage in 2021

This data file contains dissolved O2/Ar saturation ratio measured from the surface uncontaminated seawater system on the US Coast Guard Cutter (USCGC) Healy while transiting from Seward, Alaska USA to Nuuk, Greenland via the Northwest Passage. Data were collected in the Bering, Chukchi, Beaufort Seas, the Canadian Arctic Archipelago, and Baffin Bay (see map). The data are useful for understanding the balance of physical and biological controls driving surface ocean dissolved O2 concentrations and for calculating net biological community production rates. The data were collected with funding from NSF Award 1928684 “High Resolution Observing of Arctic Net Community Productivity with Ships of Opportunity” Data were collected between August 27th, 2021 and September 12th, 2021 from the surface uncontaminated seawater supply of USCGC Healy on Cruise ID HLY21TD. Data were collected near-continuously using an equilibrated inlet mass spectrometer (EIMS), with occasional outages for instrument maintenance or flow disruptions.

本数据集包含美国海岸警卫队希利号（US Coast Guard Cutter, USCGC）在从美国阿拉斯加州苏厄德途经西北航道前往格陵兰努克的航行中，于其未受污染表层海水系统中测得的溶解氧/氩（O2/Ar）饱和度比值。数据采集区域涵盖白令海、楚科奇海、波弗特海、加拿大北极群岛海域以及巴芬湾（详见配套地图）。本数据集可用于解析驱动表层海水溶解氧浓度变化的物理与生物调控机制的平衡关系，亦可用于计算生物群落净生产速率。本数据集的采集工作获得美国国家科学基金会（National Science Foundation, NSF）奖项编号1928684“基于机会航船的北极生物群落净生产力高分辨率观测”项目资助。数据采集时段为2021年8月27日至2021年9月12日，采集自美国海岸警卫队希利号（USCGC Healy）的未受污染表层海水供水系统，航次编号为HLY21TD。数据采集采用平衡进样质谱仪（equilibrated inlet mass spectrometer, EIMS），近乎连续运行，仅因仪器维护或流路中断出现偶发停机。