Vertical profiles of environmental parameters measured from physical, optical and imaging sensors during station TARA_081 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.

Tara Oceans科考航次（2009-2013年）搭乘一艘36米长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，后续将依托现代测序技术与当前最先进的成像手段开展相关分析。该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。
本数据集涵盖2009-2013年Tara Oceans航次中，搭载于垂直采样系统（Rosette）的物理、光学及成像传感器所获取的海水、颗粒物与溶解物相关参数。该系统包含2组电导率-温度传感器（SEABIRD组件），以及全套WEtLabs光学传感器，涵盖叶绿素与有色溶解有机物（CDOM）荧光计、25厘米透射仪与单波长后散射仪。此外，采水架还搭载了SATLANTIC ISUS硝酸盐传感器与Hydroptic水下视觉剖面仪（Underwater Vision Profiler, UVP）。在2013年的北冰洋及北极海域航次中，额外加装了第二台氧气传感器（SBE43）与四频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。所有传感器均在为期四年的航次全程（航前、航中与航后）完成了工厂校准。氧气浓度数据采用世界海洋气候图集2009（WOA09）进行验证。硝酸盐与荧光数据通过采水架上搭载的尼斯金（Niskin）采水瓶获取的离散样本完成校正，且每月在船上开展光学暗电流校正工作。2009-2013年的Tara Oceans航次中共完成839份经过质量校验的垂直剖面数据。