Supplementary discrete sample measurements of dissolved oxygen, dissolved inorganic carbon, and total alkalinity from Ocean Observatories Initiative (OOI) cruises to the Irminger Sea Array 2018-2019

<p dir=\"ltr\">The Ocean Observatories Initiative (OOI) is a long-term NSF-funded program that deploys autonomous sensors on both moored and mobile platforms at multiple locations, including the Global Irminger Sea Array (60.46°N, 38.44°W) (Trowbridge et al., 2019). The OOI program conducts yearly turn-around cruises to the Irminger Sea Array to recover and redeploy moorings and gliders deployed year-round at this site. During these cruises the OOI program routinely conducts Conductivity Temperature Depth (CTD) casts and collects water samples from Niskin bottles on the CTD rosette for discrete sample analysis. These turn-around cruise data are critical for validation and calibration of the data from sensors deployed year-round and also provide a valuable dataset in and of themselves (Palevsky et al., 2023).</p>

<p dir=\"ltr\">For this project, our team participated in two of the yearly turn-around cruises to the OOI Irminger Sea Array (AR30-03, 4-24 June, 2018 and AR35-05, 2-25 August, 2019)&nbsp; and collected supplementary additional samples from CTD casts to further support efforts to improve the capacity to produce high-quality data products from OOI’s biogeochemical sensors to enable analysis of scientific questions about the ocean’s biological carbon pump and other carbon cycling processes (Palevsky and Nicholson, 2018; Palevsky et al., 2023).</p>

<p dir=\"ltr\">These supplemental data provided here were collected in coordination with data collected by the OOI program. The complete collection of shipboard data and cruise documentation from these cruises is available from an OOI managed document storage system called Alfresco (see related publications), following the path: OOI &gt; Global Irminger Sea Array&nbsp; &gt; Cruise Data &gt; {Cruise ID}. For more information on OOI data access options and recommendations for use of cruise data to calibrate OOI biogeochemical sensors, see the OOI Biogeochemical Sensor Data Best Practices and User Guide (Palevsky et al., 2023).</p>

<p dir=\"ltr\">Full cruise data from the OOI Irminger Sea cruises for which discrete sample data are presented here can be accessed via the Rolling Deck to Repository (R2R, see deployments) and OOI’s Alfresco data management server (see related publications):</p>

<ul>
<li dir=\"ltr\">
<p dir=\"ltr\">Irminger Sea 5 cruise, June 2018, AR30-03. Alfresco path: Global Irminger Sea Array&nbsp; &gt; Cruise Data &gt; Irminger_Sea-05_AR30-03_2018-06-05</p>
</li>
<li dir=\"ltr\">
<p dir=\"ltr\">Irminger Sea 6 cruise, August 2019, AR35-05. Alfresco path: Global Irminger Sea Array&nbsp; &gt; Cruise Data &gt; &nbsp;&nbsp; &nbsp;Irminger_Sea-06_AR35-05_2019-08-02</p>
</li>
</ul>

<p dir=\"ltr\">The McRaven 2022 datasets (see related datasets) provide salinity-calibrated Conductivity Temperature Depth (CTD) data from the OOI Irminger Sea cruises for which discrete sample data are presented here.</p>

海洋观测计划（Ocean Observatories Initiative, OOI）是由美国国家科学基金会（National Science Foundation, NSF）资助的长期项目，该项目在全球多个站点的锚定与移动平台上部署自主传感器，其中包括全球伊尔敏格尔海阵列（60.46°N, 38.44°W）（Trowbridge等，2019）。OOI项目每年开展往返伊尔敏格尔海阵列的航次，以回收并重新部署该站点全年运行的锚系设备与滑翔机。在这些航次中，OOI项目常规开展温盐深剖面仪（Conductivity Temperature Depth, CTD）剖面观测，并从CTD采水架的尼斯金采水器中采集水样用于离散样本分析。此类往返航次数据对于全年部署传感器的观测数据验证与校准至关重要，其本身也是极具价值的数据集（Palevsky等，2023）。

本项目中，我们团队参与了两次OOI伊尔敏格尔海阵列年度往返航次（2018年6月4日至24日的AR30-03航次，以及2019年8月2日至25日的AR35-05航次），并从CTD剖面观测中采集了补充水样，以助力提升基于OOI生物地球化学传感器生成高质量数据产品的能力，进而支撑海洋生物碳泵及其他碳循环过程相关科学问题的研究（Palevsky与Nicholson，2018；Palevsky等，2023）。

本文提供的补充数据集与OOI项目采集的观测数据同步获取。上述航次的全部船载数据及航次文档可通过OOI管理的名为Alfresco的文档存储系统获取（详见相关出版物），访问路径为：OOI > 全球伊尔敏格尔海阵列 > 航次数据 > {航次编号}。如需了解OOI数据获取方式及利用航次数据校准OOI生物地球化学传感器的相关建议，请参阅《OOI生物地球化学传感器数据最佳实践与用户指南》（Palevsky等，2023）。

本文所呈现离散样本数据对应的OOI伊尔敏格尔海航次完整数据，可通过甲板到资料库（Rolling Deck to Repository, R2R，详见部署信息）及OOI的Alfresco数据管理服务器获取（详见相关出版物）：
- 2018年6月伊尔敏格尔海5号航次（AR30-03）：Alfresco访问路径为 全球伊尔敏格尔海阵列 > 航次数据 > Irminger_Sea-05_AR30-03_2018-06-05
- 2019年8月伊尔敏格尔海6号航次（AR35-05）：Alfresco访问路径为 全球伊尔敏格尔海阵列 > 航次数据 > Irminger_Sea-06_AR35-05_2019-08-02

麦克雷文2022数据集（详见相关数据集）提供了本文离散样本数据对应的OOI伊尔敏格尔海航次的经盐度校准的温盐深剖面仪（Conductivity Temperature Depth, CTD）数据。