Polycyclic Aromatic Hydrocarbons (PAHs) of sediment core POPEI_VC2B off the Algarve shore

The Iberian Margin, located in the mid-latitude North Atlantic at the western edge of the European continent, is a key region for climate and oceanographic research. The Portuguese western coast marks the northernmost boundary of the Canary Current upwelling system, experiencing seasonal wind-driven coastal upwelling from May to September. Eastern Boundary Upwelling Systems (EBUS) are among the most productive regions in the global ocean. They play a vital role in climate regulation and support both local and global fisheries. As part of the ICW3P project (PTDC/CTA-CLI/2884/2021) 'Impact of climate warming in the coastal upwelling system and primary production off Portugal: a study linking classical and emerging proxies', this study presents multi-proxy records from three inner-shelf sediment sequences. The project aimed to evaluate the sources of organic matter in the Iberian Margin and to reconstruct primary productivity and phytoplankton community variability over the past 1,000 years. This dataset presents pyrogenic polycyclic aromatic hydrocarbons (pyPAHs) from a sediment record collected in front of Faro (POPEI-VC2B), along the Algarve coast, obtained with a vibro-core sampler during the POPEI Cruise in 2008. Analyses were performed in 2025 at the Marine and Environmental Studies Lab (LABMAM) of PUC-Rio using gas chromatography coupled with mass spectrometry (GC-MS), Thermo Scientific, Trace1300-ISQ7000 system.

伊比利亚陆缘（Iberian Margin）位于欧洲大陆西缘的北大西洋中纬度海域，是气候与海洋学研究的关键区域。葡萄牙西海岸为加那利海流上升流系统的最北界，每年5月至9月会出现受季节性风力驱动的沿岸上升流。东边界上升流系统（Eastern Boundary Upwelling Systems, EBUS）是全球海洋生产力最高的区域之一，在气候调节中发挥着至关重要的作用，同时支撑着本地与全球渔业的发展。本研究作为ICW3P项目（项目编号PTDC/CTA-CLI/2884/2021，主题为“气候变暖对葡萄牙近海沿岸上升流系统与初级生产力的影响：整合经典与新兴代用指标的研究”）的一部分，基于3个陆架内部沉积序列获取了多代用指标记录。该项目旨在解析伊比利亚陆缘的有机质来源，并重建过去1000年以来的初级生产力与浮游植物群落演变情况。本数据集包含2008年POPEI航次中，采用振动取芯器（vibro-core sampler）在阿尔加维沿岸法鲁近海的POPEI-VC2B站位获取的沉积岩芯中的热解多环芳烃（pyrogenic polycyclic aromatic hydrocarbons, pyPAHs）数据。分析工作于2025年在里约热内卢天主教大学（Pontifícia Universidade Católica do Rio de Janeiro, PUC-Rio）的海洋与环境研究实验室（LABMAM）完成，所用设备为赛默飞世尔科技（Thermo Scientific）Trace1300-ISQ7000型气相色谱-质谱联用系统（gas chromatography coupled with mass spectrometry, GC-MS）。