Mediterranean Sea - Eutrophication and Acidity aggregated datasets 1911/2020 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 (15 parameters with quality flag indicators), and covers the Mediterranean Sea with 187722 CDI records (180932 Vertical profiles and 6790 Time series). Vertical profiles temporal range is from 1911-08-17 to 2020-10-16. Time series temporal range is from 1974-06-04 to 2018-02-20. Data were aggregated and quality controlled by 'Hellenic Centre for Marine Research, Hellenic National Oceanographic Data Centre (HCMR/HNODC)' from Greece.<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 1.2, updated on 2022-05-02.<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旨在提供对涉及富营养化、酸度及污染物的海洋化学数据集和衍生数据产品的访问权限。所选化学品反映了其对《海洋战略框架指令》(Marine Strategy Framework Directive, MSFD)的重要性。ITS-90水温及水体盐度变量也被原样纳入，以完善富营养化和酸度数据。若您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EMODnet Chemistry所有不受限制的富营养化和酸度数据（15个带质量标志指标的参数），覆盖地中海区域，共含187722条CDI记录（180932个垂直剖面及6790个时间序列）。垂直剖面的时间范围为1911-08-17至2020-10-16，时间序列的时间范围为1974-06-04至2018-02-20。本数据集由希腊的希腊海洋研究中心、希腊国家海洋学数据中心(Hellenic Centre for Marine Research, Hellenic National Oceanographic Data Centre, HCMR/HNODC)进行聚合与质量控制。<br>涉及富营养化和酸度的区域数据集会被自动收集，生成的集合通过ODV软件及适用于所有海域的通用方法进行聚合与质量控制（详见：https://doi.org/10.6092/9f75ad8a-ca32-4a72-bf69-167119b2cc12）。当原始数据中未包含水体硝酸盐加亚硝酸盐时，该参数通过对硝酸盐与亚硝酸盐求和计算得出；水体溶解无机氮(DIN)的计算方式同理。参数名称基于EMODnet Chemistry聚合参数名称词汇表P35，该词汇表可通过以下链接获取：https://www.bodc.ac.uk/resources/vocabularies/vocabulary_search/P35/。<br>本数据集版本为1.2，更新于2022-05-02。详细文档见：https://dx.doi.org/10.6092/4e85717a-a2c9-454d-ba0d-30b89f742713<br>该聚合数据集可下载为ODV集合及电子表格（包含元数据头与制表符分隔值），并可导入ODV软件进行可视化（更多信息见：https://www.seadatanet.org/Software/ODV）。原始数据集可通过EMODnet Chemistry下载服务搜索并获取：https://emodnet-chemistry.maris.nl/search