Dissolved inorganic carbon, total alkalinity, pH, temperature, salinity, dissolved oxygen, macronutrients, particulate organic carbon and nitrogen, collected from vertical profiles and discrete samples observations during the CCGS Alfred Needler Fisheries and Oceans Canada (DFO) Atlantic Zone Monitoring Program (AZMP) cruise (EXPOCODE 18NE20220701) in the North Atlantic Ocean and Labrador Sea from 2022-07-01 to 2022-07-02 (NCEI Accession 0296977)

This dataset includes discrete sample and profile data collected during the CCGS Alfred Needler Fisheries and Oceans Canada (DFO) Atlantic Zone Monitoring Program (AZMP) cruise (EXPOCODE 18NE20220701) in the North Atlantic Ocean and Labrador Sea from 2022-07-01 to 2022-07-02. These data include water temperature, salinity, dissolved oxygen, nutrients, dissolved inorganic carbon (DIC), total alkalinity (TA), pH, and other parameters. Oceanographic sampling of physical, biological, and chemical parameters is performed annually along selected fixed sections as part of the AZMP. The sampling consists at a minimum of a vertical profile of the entire water column (temperature; salinity; dissolved oxygen); rosette bottle casts at selected depths (nutrients; DIC and TA; and other biological parameters) as well as plankton net tows. The AZMP was implemented in 1998 with the aim of increasing DFO's capacity to understand, describe, and forecast the state of the marine ecosystem and to quantify the changes in the ocean physical, chemical, and biological properties. Ocean acidification is an emerging priority for DFO under the Aquatic Climate Change Adaption Services Program (ACCASP) and is developing the knowledge-based information necessary to support the development of adaptation tools and strategies and investing in science to better understand the specific consequences of a changing climate. Specifically, the effects of ocean acidification on ecosystems in the Northwest Atlantic and large aquatic basin risk assessments consider ocean acidification at the basin and sub-basin scale are being investigated.

本数据集收录了加拿大海岸警卫队阿尔弗雷德·尼德勒号（CCGS Alfred Needler）执行的加拿大渔业与海洋部（Fisheries and Oceans Canada, DFO）大西洋区域监测计划（Atlantic Zone Monitoring Program, AZMP）航次（航次编码EXPOCODE 18NE20220701）于2022年7月1日至7月2日在北大西洋及拉布拉多海采集的离散样本与剖面数据。本次采集的观测参数包括水温、盐度、溶解氧、营养盐、溶解无机碳（dissolved inorganic carbon, DIC）、总碱度（total alkalinity, TA）、pH值及其他相关海洋学参数。作为AZMP的常规工作之一，该计划每年沿预设固定断面开展物理、生物与化学参数的海洋学采样，标准采样流程至少涵盖全水柱垂直剖面观测（水温、盐度、溶解氧）、选定深度的多联采水器（rosette bottle）采样（营养盐、DIC与TA及其他生物参数），以及浮游生物网拖网作业。大西洋区域监测计划于1998年启动，旨在提升加拿大渔业与海洋部认知、描述并预报海洋生态系统状态，以及量化海洋物理、化学与生物属性变化的能力。加拿大渔业与海洋部在水生气候变化适应服务计划（Aquatic Climate Change Adaption Services Program, ACCASP）框架下，将海洋酸化列为新兴优先议题，正研发支撑海洋适应工具与策略制定所需的知识型信息，并投入科研工作以更深入理解气候变化带来的具体影响。具体而言，研究正围绕两大核心方向展开：一是海洋酸化对西北大西洋生态系统的影响，二是针对流域与亚流域尺度海洋酸化的大型水生流域风险评估。