Quality controlled, post-recovery dissolved, inorganic nitrate+nitrite concentration data [µmol l^-1] from the eastern Agulhas Bank/Indian Ocean (South Africa) in March 2019

A quality-controlled dataset of dissolved, inorganic nitrate+nitrite (NOx) concentrations [µmol l^-1] originating from the eastern Agulhas Bank/Indian Ocean (South Africa) in March 2019 is presented here. The data were collected by a microfluidic lab-on-chip nutrient sensor (s/n 118) that was integrated into a buoyancy driven Kongsberg M1 Seaglider (s/n sg550, doi.org/10/hgwf). The ocean glider was deployed on the 14th of March 2019 in a mean water depth of 90 m at a nominal location of 26.950°E, 33.633°S, 20 km southwest of Port Alfred. Recovery took place on the 31st of March 2019 at 24.932°E, 34.923°S by RS Ellen Khuzwayo (Noyon et al., 2019). The nutrient sensor was set to sample at various time and depth intervals during the glider's deployment. NOx concentration data were collected between the 14th and 27th March 2019. The location data (latitude, longitude, depth) originate from the ocean glider sensors and were derived by linear interpolation onto the nutrient sensor time stamps. These data were collected as part of the Sustainable Oceans, Livelihoods and food Security Through Increased Capacity in Ecosystem research in the Western Indian Ocean (SOLSTICE-WIO) project (Global Challenges Research Fund under NERC grant NE/P021050/1), which aimed to investigate ecosystem health and resilience in the face of climate change in the Western Indian Ocean.

本数据集经质量管控，包含2019年3月采集自南非东部阿古拉斯海台/印度洋的溶解态无机硝酸盐与亚硝酸盐（dissolved, inorganic nitrate+nitrite，NOₓ）浓度数据，单位为微摩尔每升（µmol·L⁻¹）。该数据由序列号（s/n）为118的微流控芯片实验室营养传感器（microfluidic lab-on-chip nutrient sensor）采集，该传感器集成于浮力驱动型康斯伯格（Kongsberg）M1型海滑翔机（Kongsberg M1 Seaglider，s/n sg550，doi.org/10/hgwf）上。该海洋滑翔机（ocean glider）于2019年3月14日布放，布放点平均水深90米，标称位置为阿尔弗雷德港西南20公里处的东经26.950°、南纬33.633°。该滑翔机于2019年3月31日在东经24.932°、南纬34.923°处由“艾伦·库兹瓦约号”研究船（RS Ellen Khuzwayo）完成回收，相关信息参见Noyon等（2019）。在滑翔机布放期间，营养传感器按照不同的时间与深度间隔开展采样。NOₓ浓度数据的采集时段为2019年3月14日至27日。位置数据（纬度、经度、水深）源自海洋滑翔机传感器，并通过线性插值匹配至营养传感器的采样时间戳。本数据集为“西印度洋生态系统研究能力提升助力可持续海洋、生计与粮食安全”（Sustainable Oceans, Livelihoods and Food Security Through Increased Capacity in Ecosystem Research in the Western Indian Ocean，缩写SOLSTICE-WIO）项目的组成部分，该项目由自然环境研究委员会（Natural Environment Research Council, NERC）全球挑战研究基金资助，项目编号为NE/P021050/1，旨在探究西印度洋海域在气候变化背景下的生态系统健康与恢复力。

搜集汇总

背景与挑战

背景概述

该数据集提供了2019年3月南非东部阿古拉斯银行/印度洋的溶解无机硝酸盐+亚硝酸盐（NOx）浓度数据，单位为微摩尔每升，数据经过质量控制。数据通过集成在海洋滑翔机上的微流体芯片实验室营养传感器收集，作为SOLSTICE-WIO项目的一部分，旨在研究西印度洋生态系统的健康和气候变化韧性。