Discrete O2/Ar (Oxygen/Argon) and oxygen isotope data collected on a research cruise on the vessel Norseman II, Bering, Chukchi, and Beaufort Seas, Arctic Ocean, July-September 2022

Discrete samples were collected on research cruise ID NRS2022 (-01T, -01S, -02S) between July 12, 2022 and September 5, 2022, and analyzed for oxygen/argon ratios and triple oxygen isotopes. Samples were collected intermittently from the underway seawater supply throughout the cruise, which departed from Homer, Alaska (AK) and sampled waters of the Bering, Chukchi, and Beaufort Seas, ending in Nome, AK. Samples were also collected at various depths from a selection of conductivity, temperature, and depth (CTD) casts during the second leg of the cruise (NRS2022_02S). The measurements here contribute to characterizing both the chemical environment and the rates of net and gross biological oxygen production in the Pacific-influenced Arctic.

本数据集的离散样本采集于2022年7月12日至9月5日的NRS2022（-01T、-01S、-02S）航次，随后对样本开展了氧氩比值与三氧同位素分析。本次航次从美国阿拉斯加州荷马港出发，途经白令海、楚科奇海与波弗特海海域，最终以阿拉斯加州诺姆港为终点；航次全程通过走航海水供应系统间歇性采集样本。在航次第二航段（NRS2022_02S）期间，研究人员还通过选定的温盐深（Conductivity, Temperature, Depth, CTD）剖面采集了不同深度的样本。本次测定结果可为表征受太平洋影响的北极海域化学环境，以及净、总生物产氧速率提供数据支撑。