Surface underway dissolved O2/N2 saturation ratio and O2 concentration data collected in the Bering, Beaufort, and Chukchi Seas in 2022 on R/V Sikuliaq

These data files contain surface dissolved O2 concentration and dissolved O2/N2 saturation ratio for the Bering, Chukchi, and Beaufort Seas with relevant accompanying ancillary information. 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.” These data are being disseminated to the research community with limited processing; an updated version with enhanced data quality control may be available in the future. Please contact the PI, Laurie Juranek ([e-mail]) for questions about use. Data were collected between July 31st and December 3rd, 2022 from the surface underway seawater supply of R/V Sikuliaq on several cruises. Data were collected using a Pro-Oceanus miniTDGP (total dissolved gas pressure instrument), a SBE38 temperature sensor, a SBE45 thermosalinograph, and an Aanderaa 4330 dissolved O2 optode, with occasional outages for instrument maintenance or flow disruptions. Sea level pressure data from a Vaisala PTU307 are also provided.

本数据集文件包含白令海、楚科奇海与波弗特海的表层溶解氧（dissolved O2）浓度及溶解氧/氮气饱和度比值数据，并附带相关辅助信息。该数据集可用于阐明驱动表层海洋溶解氧浓度变化的物理与生物调控机制的平衡关系，同时可用于计算海洋生物群落净生产力速率。本次数据采集由美国国家科学基金会（National Science Foundation, NSF）资助的编号为1928684的项目“利用机会船舶开展北极海洋生物群落净生产力高分辨率观测”支持。本数据集目前仅经过有限处理后向科研社区发布；未来或将推出经过强化数据质量管控的更新版本。若有使用相关疑问，请联系项目负责人（Principal Investigator, PI）劳里·尤拉内克（Laurie Juranek），联系邮箱：[e-mail]。数据采集时间为2022年7月31日至12月3日，采集自“锡利库亚克号”（R/V Sikuliaq）多航次的表层走航海水供给系统。本次数据采集使用了Pro-Oceanus miniTDGP（总溶解气体压力仪）、SBE38温度传感器、SBE45温盐观测仪以及Aanderaa 4330溶解氧光学传感器，采集过程中曾因仪器维护或水流中断出现过短暂数据中断。本数据集同时提供来自Vaisala PTU307的海平面气压数据。