Triple oxygen isotopes and oxygen-argon ratios from CTD hydrocasts and underway seawater system on Shelf Sea Biogeochemistry (SSB) cruises DY018, DY026, DY029 and DY033 (2014-2015).

Samples have been collected from the Celtic Sea between August 2014 and July 2015 for the determination of triple oxygen isotopes and biological oxygen supersaturation, relative to air-saturated water. Samples were collected during four RRS Discovery cruises (DY018, DY026, DY029 and DY033), from both CTD hydrocasts and the ship's underway seawater supply. Dissolved gas concentrations and isotopologue ratios of molecular oxygen in water samples were determined by mass spectrometry and measurement results used for the calculation of net and gross oxygen production. This work was undertaken by the University of East Anglia as part of the NERC-funded Shelf Sea Biogeochemistry programme under work package 1: Carbon and Nutrient Dynamics and Fluxes over Shelf Systems.

为测定相对于空气饱和水的三重氧同位素（triple oxygen isotopes）及生物氧过饱和状态，样本于2014年8月至2015年7月期间在凯尔特海（Celtic Sea）采集。样本采集自“发现号”皇家研究船（RRS Discovery）的四次航次（DY018、DY026、DY029及DY033），来源包括CTD水文探测（CTD hydrocasts）及船舶在航海水供应系统。水样中溶解气体浓度及分子氧的同位素体比值通过质谱法测定，测量结果用于计算净氧产生量与总氧产生量。本研究由东英吉利大学开展，是英国自然环境研究理事会（NERC）资助的“陆架海生物地球化学计划”（Shelf Sea Biogeochemistry programme）的一部分，隶属于工作包1：陆架系统的碳与营养盐动态及通量。