North East Atlantic Ocean - Eutrophication and Acidity aggregated datasets 1921/2020 v2021

EMODnet Chemistry aims to provide access to marine chemistry data sets and derived data products concerning eutrophication, acidity and contaminants. The chemicals chosen reflect importance to the Marine Strategy Framework Directive (MSFD). ITS-90 water temperature and Water body salinity variables have been also included (as-is) to complete the Eutrophication and Acidity data. If you use these variables for calculations, please refer to SeaDataNet for having the quality flags: https://www.seadatanet.org/Products/Aggregated-datasets . This aggregated dataset contains all unrestricted EMODnet Chemistry data on Eutrophication and Acidity (18 parameters with quality flag indicators), and covers the Northeast Atlantic Ocean (40W) with 381639 CDI records (381085 Vertical profiles and 554 Time series). Vertical profiles temporal range is from 1921-10-15 to 2020-10-16. Time series temporal range is from 1974-06-14 to 2019-04-24. Data were aggregated and quality controlled by 'IFREMER / IDM / SISMER - Scientific Information Systems for the SEA' from France.<br> Regional datasets concerning eutrophication and acidity are automatically harvested and resulting collections are aggregated and quality controlled using ODV Software and following a common methodology for all Sea Regions ( https://doi.org/10.6092/9f75ad8a-ca32-4a72-bf69-167119b2cc12). When not present in original data, Water body nitrate plus nitrite was calculated by summing up the Nitrates and Nitrites. Same procedure was applied for Water body dissolved inorganic nitrogen (DIN) which was calculated by summing up the Nitrates, Nitrites and Ammonium.<br> Parameter names are based on P35, EMODnet Chemistry aggregated parameter names vocabulary, which is available at: https://www.bodc.ac.uk/resources/vocabularies/vocabulary_search/P35/.<br> Version 1.1, updated on 2022-02-08.<br> Detailed documentation is available at: https://dx.doi.org/10.6092/4e85717a-a2c9-454d-ba0d-30b89f742713<br> The aggregated dataset can be downloaded as ODV collection and spreadsheet, which is composed of metadata header followed by tab separated values. This spreadsheet can be imported to ODV Software for visualisation (More information can be found at: https://www.seadatanet.org/Software/ODV ).<br> The original datasets can be searched and downloaded from EMODnet Chemistry Download Service: https://emodnet-chemistry.maris.nl/search

EMODnet Chemistry旨在提供海洋化学数据集及衍生数据产品的访问，涉及富营养化、酸化和污染物。所选化学品反映了其对《海洋战略框架指令》（MSFD）的重要性。ITS-90水温及水体盐度变量也（原样）纳入，以完善富营养化和酸化数据。若使用这些变量进行计算，请参考SeaDataNet获取质量标志：https://www.seadatanet.org/Products/Aggregated-datasets 。该聚合数据集包含所有不受限制的EMODnet Chemistry富营养化和酸化数据（含质量标志指标的18个参数），覆盖东北大西洋（西经40度），包含381639条CDI记录（381085条垂直剖面记录和554条时间序列记录）。垂直剖面的时间范围为1921年10月15日至2020年10月16日，时间序列的时间范围为1974年6月14日至2019年4月24日。数据由法国的“IFREMER / IDM / SISMER - 海洋科学信息系统”进行聚合和质量控制。<br> 关于富营养化和酸化的区域数据集会被自动采集，生成的集合通过ODV软件并遵循所有海域通用的方法学进行聚合和质量控制（https://doi.org/10.6092/9f75ad8a-ca32-4a72-bf69-167119b2cc12）。若原始数据中未包含水体硝酸盐+亚硝酸盐，则通过将硝酸盐与亚硝酸盐相加计算得出；水体溶解性无机氮（DIN）的计算方法相同，即硝酸盐、亚硝酸盐与铵盐之和。<br> 参数名称基于P35——EMODnet Chemistry聚合参数名称词汇表，可通过以下链接获取：https://www.bodc.ac.uk/resources/vocabularies/vocabulary_search/P35/。<br> 版本1.1，更新于2022年2月8日。<br> 详细文档可访问：https://dx.doi.org/10.6092/4e85717a-a2c9-454d-ba0d-30b89f742713<br> 该聚合数据集可作为ODV集合和电子表格下载，电子表格包含元数据头及制表符分隔的值，可导入ODV软件进行可视化（更多信息见：https://www.seadatanet.org/Software/ODV）。<br> 原始数据集可通过EMODnet Chemistry下载服务搜索和下载：https://emodnet-chemistry.maris.nl/search