Shelf Sea Biogeochemistry - Celtic Deep 2 SmartBuoy

This data set consists of biogeochemical sensor data from SmartBuoy moorings (Mills et al, 2005). SmartBuoys consist of a 4 meter tall stainless steel frame with a fibreglass torroid for buoyancy. Instruments are attached at a nominal 1 meter depth to the frame. In-air sensors are mounted to the top of the torroid. The buoys feature a satellite telemetry system providing near real-time telemetry. Temperature, salinity, dissolved oxygen, chlorophyll fluorescence, turbidity and photosynthetic active radiation (PAR) sensors where fitted to a Cefas ESM2 data logger. These instruments gathered data for 5 minutes every 30 minutes. Sensors were validated against in-situ samples during deployment and recovery. The buoy was also fitted with a water sampler which took periodic samples into pre-spiked (MgCl2) bags for later nutrient analysis. The in-situ salinity and nutrients samples are quality controlled via the Quality Assurance for Marine Environmental Measurements (QUASIMEME) scheme. PAR sensors were calibrated against a standard lamp. Fluorometers were standardised using fluorosphere beads. Turbidity meters were calibrated using Stabical (Hach, US). This mooring was also fitted with a thermistor string (multiple temperature sensors at various depth), this data is held by BODC. The data were collected as part of the Shelf Sea Biogeochemistry (SSB) research programme as part work package 2. SSB was co-funded by the Natural Environment Research Council (NERC) and the Department for Environment, Food and Rural Affairs (Defra). The programme took a holistic approach to the cycling of nutrients and carbon and the controls on primary and secondary production in UK and European shelf seas, to increase understanding of these processes and their role in wider biogeochemical cycles. This data represents a snapshot of the wider Celtic Deep 2 SmartBuoy. The Celtic Deep SmartBuoy was first deployed in 2009 under the Defra E5304 project. From 2014 the mooring was maintained under the SSB project. This mooring was also fitted with a thermistor string (multiple temperature sensors at various depth), this data is held by BODC. The data were collected as part of the Shelf Sea Biogeochemistry (SSB) research programme as part work package 1. SSB was co-funded by the Natural Environment Research Council (NERC) and the Department for Environment, Food and Rural Affairs (Defra). The programme took a holistic approach to the cycling of nutrients and carbon and the controls on primary and secondary production in UK and European shelf seas, to increase understanding of these processes and their role in wider biogeochemical cycles.

本数据集源自SmartBuoy型锚定浮标的生物地球化学传感器数据（Mills等，2005）。SmartBuoy浮标由4米高的不锈钢框架及提供浮力的玻璃纤维环形浮筒组成。仪器以标称水下1米的深度安装于框架之上，大气传感器则安装在浮筒顶部。该浮标配备卫星遥测系统，可提供近实时遥测数据。温度、盐度、溶解氧、叶绿素荧光、浊度及光合有效辐射（Photosynthetic Active Radiation，PAR）传感器均搭载于Cefas ESM2型数据记录仪。此类仪器每30分钟开展一次时长5分钟的数据采集。在浮标布放与回收阶段，所有传感器均通过现场样本完成有效性验证。该浮标还配备了水样采集器，可定期采集水样并储存于预先添加氯化镁（MgCl₂）的采样袋中，用于后续营养盐分析。现场采集的盐度与营养盐样本通过海洋环境测量质量保证（Quality Assurance for Marine Environmental Measurements，QUASIMEME）计划进行质量控制。光合有效辐射传感器采用标准光源进行校准，荧光计采用荧光微球珠完成标准化标定，浊度计则使用美国哈希（Hach）公司生产的Stabical标准浊液进行校准。该锚定浮标还搭载了热敏电阻串（多深度温度传感器阵列），相关数据由英国海洋数据中心（BODC）存档保管。本数据集作为陆架海生物地球化学（Shelf Sea Biogeochemistry，SSB）研究计划工作包2的组成部分采集所得，该计划由自然环境研究委员会（Natural Environment Research Council，NERC）与环境、食品与农村事务部（Department for Environment, Food and Rural Affairs，Defra）联合资助。该计划采用整体研究范式，针对英国及欧洲陆架海域的营养盐与碳循环、初级及次级生产调控机制开展研究，以提升对上述过程及其在更广范围生物地球化学循环中作用的认知。本数据集为更广范围的凯尔特深水区2号SmartBuoy浮标观测的阶段性快照。凯尔特深水区SmartBuoy浮标于2009年首次在Defra E5304项目框架下完成布放，2014年起，该锚定浮标的维护工作转由SSB项目负责。该浮标还搭载了热敏电阻串（多深度温度传感器阵列），相关数据由BODC存档保管。本数据集作为SSB研究计划工作包1的组成部分采集所得，该计划由NERC与Defra联合资助，采用整体研究范式探究英国及欧洲陆架海域的营养盐与碳循环、初级及次级生产调控机制，以增进对上述过程及其在更广范围生物地球化学循环中作用的理解。