Denman Marine Voyage HydroBox

This dataset contains dissolved oxygen (DO), salinity and macro-nutrient measurements for the Denman Marine Voyage (DMV). Macro-nutrients analysed were Silicate (SiO44- as Si), Phosphate (PO43- as P), Nitrate (NO3- as N) plus Nitrite (NO2- as N) referred to as NOx, Nitrite (NO2- as N) and Ammonium (NH4+ as N). Measurements were performed onboard RSV Nuyina in the Hydrochemistry containerised laboratory, the HydroBox. The HydroBox team measured DO, salinity and macro-nutrient samples from each CTD cast deployment where samples were collected. The team also measured macro-nutrients from underway samples (UWY), trace metal rosette (TMR) casts, pore water from kasten, multi-core sediments and Smith McGrab (CORE), and phytoplankton incubation (INC) experiments. In addition to that, the HydroBox team collected and measured salinity samples (TSG) from the underway system to calibrate the thermosalinograph.Sample ID for CTD and TMR samples are CTD or TMR number and Niskin position, e.g., for CTD 021 Niskin bottle 16 the sample ID is 02116; for the TMR 04 Niskin 07, the ID is tmr 0407.INC samples, CORE samples and UWY sample have their own logsheet.For sampling time and location, please see the elog document associated to the deployment. All results are csv files, supporting documents such as log sheets and data processing reports are pdf. Nutrient run analysis processing sheet (RAPS) are csv.Nutrient samples were analysed using segmented flow SEAL AA500 and results are in µmol/L. In-house methods SOP 001, SOP 002, SOP 003 and SOP 004 were used to analyse nutrients. Salinities were analysed using Guildline AutoSal 8400B and a Guildline PortaSal 8410A Salinometers and OSIL software. In-house method SOP 006 and SOP 008 was used to analyse salinity, units are Practical Salinity Unit (PSU).Dissolved Oxygens were analysed using Scripps UV titrator and software, units measured in ml/L and converted to µmol/L. Dissolved oxygen was analysed using in-house method SOP 005.All data was processed with HyPro 5.7 on the ship and re-processed on shore with HyPro 5.9.

本数据集涵盖登曼海洋科考航次（Denman Marine Voyage, DMV）的溶解氧（dissolved oxygen, DO）、盐度与大量营养盐实测数据。本次分析的大量营养盐包括以硅计的硅酸盐（SiO₄⁴⁻以Si计）、以磷计的磷酸盐（PO₄³⁻以P计）、以氮计的硝酸盐（NO₃⁻以N计）与亚硝酸盐（NO₂⁻以N计，二者合称NOₓ），以及以氮计的铵盐（NH₄⁺以N计）。

所有测量工作均在“努伊纳号”（RSV Nuyina）科考船的集装箱式水化学实验室HydroBox内完成。HydroBox团队对每一次CTD（温盐深仪，Conductivity-Temperature-Depth）投放采集的样本开展溶解氧、盐度与大量营养盐检测。此外，团队还对走航样本（UWY）、微量金属采水器（TMR）投放样本、箱式采芯器/多芯沉积物孔隙水、Smith-McGrab采泥器（CORE）样本，以及浮游植物培养（INC）实验样本开展大量营养盐检测。

除此之外，HydroBox团队还从走航系统采集盐度样本（TSG），用于校准船载温盐自动记录仪（thermosalinograph）。CTD与TMR样本的编号由CTD/TMR编号与尼斯金采水瓶（Niskin bottle）位置组成，例如CTD 021号第16号采水瓶的样本ID为02116；TMR 04号第07号采水瓶的样本ID为tmr 0407。INC样本、CORE样本与UWY样本均配有专属记录表。

关于采样时间与地点，请参阅对应投放任务的电子日志（elog）文档。所有实测结果均以CSV格式存储，记录表与数据处理报告等辅助文件为PDF格式；营养盐运行分析处理表（Nutrient run analysis processing sheet, RAPS）同样采用CSV格式存储。

营养盐样本采用分段流动分析法，使用SEAL AA500仪器完成检测，结果单位为微摩尔每升（µmol/L），检测遵循内部标准操作流程SOP 001、SOP 002、SOP 003与SOP 004。盐度检测采用Guildline AutoSal 8400B与Guildline PortaSal 8410A型盐度计，搭配OSIL软件完成，遵循内部标准操作流程SOP 006与SOP 008，单位为实用盐度单位（Practical Salinity Unit, PSU）。

溶解氧采用Scripps紫外滴定仪及配套软件检测，初始检测单位为毫升每升（ml/L），后续转换为微摩尔每升（µmol/L），检测遵循内部标准操作流程SOP 005。所有数据先在船上通过HyPro 5.7软件完成预处理，后续在岸基端使用HyPro 5.9软件进行二次处理。