Dissolved nutrient samples collected in the Fram Strait as part of cruise JR17005 for the Changing Arctic Ocean programme, May-June 2018.

Samples for dissolved nutrients were collected from CTD niskin bottles during cruise JR17005 in the Fram Strait (May - June 2018) as part of the Changing Arctic Ocean programme. Dataset consists of ammonia/ium, silicate, phosphate, nitrate and nitrite measurements in μM L^-1 and μM kg^-1 units. Ammonia/ium and silicate samples were collected in acid cleaned PE 50 mL centrifuge vials and measured shortly after collection (within 24 hours) on the vessel by the Scottish Association for Marine Science (SAMS) using a Lachat Quik Chem 8500 Flow injection analyser. Phosphate, nitrate and nitrite samples were collected in 100 mL acid cleaned HDPE bottles and frozen immediately. These were measured using a Bran and Luebbe, QuAAtro 5-channel continuous flow analyser from filtered frozen samples on land by the University of Liverpool. This dataset supersedes doi:10.5285/b61d58df-b8e8-11c4-e053-6c86abc0246c which contained some errors in the ammonia/ium channel.

作为‘北极海洋变化计划’（Changing Arctic Ocean programme）的一部分，于2018年5月至6月在弗拉姆海峡（Fram Strait）的JR17005航次期间，从CTD尼斯金采水瓶（CTD niskin bottles）中采集了溶解性营养盐样本。数据集包含氨（ammonia/ium）、硅酸盐（silicate）、磷酸盐（phosphate）、硝酸盐（nitrate）和亚硝酸盐（nitrite）的测量值，单位为μM L⁻¹和μM kg⁻¹。氨和硅酸盐样本采集于经酸洗的PE 50 mL离心管中，并由苏格兰海洋科学协会（Scottish Association for Marine Science，SAMS）在采集后24小时内于船上使用Lachat Quik Chem 8500流动注射分析仪（flow injection analyser）完成测量。磷酸盐、硝酸盐和亚硝酸盐样本采集于经酸洗的100 mL HDPE瓶中并立即冷冻，随后由利物浦大学（University of Liverpool）在陆地上使用Bran and Luebbe QuAAtro 5通道连续流动分析仪（continuous flow analyser）对过滤后的冷冻样本进行测量。本数据集取代了doi:10.5285/b61d58df-b8e8-11c4-e053-6c86abc0246c，该数据集的氨通道存在若干误差。