Vertical profiles of environmental parameters measured from physical, optical and imaging sensors during station TARA_045 of the Tara Oceans expedition 2009-2013

The Tara Oceans Expedition (2009-2013) sampled the world oceans on board a 36 m long schooner, collecting environmental data and organisms from viruses to planktonic metazoans for later analyses using modern sequencing and state-of-the-art imaging technologies. Tara Oceans Data are particularly suited to study the genetic, morphological and functional diversity of plankton. The present data set includes properties of seawater, particulate matter and dissolved matter from physical, optical and imaging sensors mounted on a vertical sampling system (Rosette) used during the 2009-2013 tara Oceans Expedition. It comprised 2 pairs of conductivity and temperature sensors (SEABIRD components), and a complete set of WEtLabs optical sensors, including chrorophyll and CDOM fluorometers, a 25 cm transmissiometer, and a one-wavelength backscatter meter. In addition, a SATLANTIC ISUS nitrate sensor and a Hydroptic Underwater Vision Profiler (UVP) were mounted on the rosette. In the Arctic Ocean and Arctic Seas (2013), a second oxygen sensor (SBE43) and a four frequency Aquascat acoustic profiler were added. The system was powered on specific Li-Ion batteries and data were self-recorded at 24HZ. Sensors have all been factory calibrated before, during and after the four year program. Oxygen was validated using climatologies (WOA09). Nitrate and Fluorescence data were adjusted with discrete measurements from Niskin bottles mounted on the Rosette, and optical darks were performed monthly on board. A total of 839 quality checked vertical profiles were made during the tara Oceans expedition 2009-2013.

塔拉海洋科考队（Tara Oceans Expedition）于2009-2013年间搭乘一艘长36米的纵帆船对全球海洋开展采样工作，收集了从病毒到浮游后生动物的各类生物样本与环境数据，后续将借助现代测序技术与前沿成像技术开展分析研究。塔拉海洋数据集尤其适用于研究浮游生物的遗传、形态与功能多样性。本次数据集涵盖2009-2013年塔拉海洋科考期间，搭载于垂直采样系统（Rosette）上的物理、光学及成像传感器所采集的海水、颗粒物与溶解物相关参数。该系统包含2对电导-温度传感器（SEABIRD组件），以及一套完整的WET Labs光学传感器套件，涵盖叶绿素与有色溶解有机物（CDOM）荧光计、25厘米光透射仪以及单波长后向散射仪。此外，采水器架上还搭载了SATLANTIC ISUS型硝酸盐传感器以及Hydroptic水下视觉剖面仪（UVP）。2013年在北冰洋与北极海域的科考作业中，额外加装了第二台氧气传感器（SBE43）以及四频Aquascat声学剖面仪。该系统采用专用锂离子电池供电，数据以24赫兹的频率自动记录。整套传感器在本次四年科考项目的前期、中期与后期均经过工厂校准。氧气浓度数据通过气候态数据集（WOA09）完成了有效性验证。硝酸盐与荧光数据通过搭载于Rosette采水器架上的尼斯金（Niskin）采水器的离散采样结果进行校正，且每月在科考船上开展光学暗场校准。2009-2013年塔拉海洋科考期间，共计完成839份经过质量核查的垂直剖面采样数据集。