DAERA Annual Chlorophyll a Survey (2008-2017)

The chlorophyll a survey is an annual assessment of the Chlorophyll a concentration in micrograms per litre found in surface waters in coastal and transitional (estuarine) waters around Northern Ireland. Spot samples are taken at established sample sites and returned to the laboratory for analysis. The dataset contributes to Water Framework Directive (WFD) classification, as well as providing a eutrophication indicator under Nitrates Directive (ND), and Urban Waste Water Treatment Directive (UWWTD). Selected samples are submitted to the MERMAN database for inclusion in the CSEG (Clean Seas Evidence Group) work programme. The data held in MERMAN fulfils the UK's mandatory monitoring requirements under the Oslo and Paris Convention (OSPAR), Joint Assessments and Monitoring Programme (JAMP). Within DAERA, this survey forms part of the Marine Phytoplankton and Chlorophyll work programme (MM(YY)-14)

叶绿素a调查是对爱尔兰北部沿海及过渡性（河口）水域中叶绿素a浓度（以微克/升为单位）的年度评估。在既定的采样点进行现场采样，并将样本送回实验室进行分析。该数据集对《水框架指令》（WFD）的分类有所贡献，同时作为《硝酸盐指令》（ND）和《城市废水处理指令》（UWWTD）下的富营养化指标。部分样本被提交至MERMAN数据库，以纳入CSEG（清洁海洋证据组）的工作计划。MERMAN数据库中所保存的数据满足英国在《奥斯陆公约》和《巴黎公约》（OSPAR）、《联合评估和监测计划》（JAMP）下的强制性监测要求。在DAERA（北爱尔兰农业、环境和海洋部）内部，此调查构成海洋浮游植物和叶绿素工作计划（MM(YY)-14）的一部分。