Quality Control steps and dataset formats for EMODnet Chemistry Contaminant aggregated datasets, Version 08.04.2021.

Abstract

EMODnet Chemistry aims to provide access to marine chemistry data sets and derived data products concerning eutrophication, ocean acidification, contaminants and marine litter. The chemicals chosen are relevant for the Marine Strategy Framework Directive (MSFD). Parameter names are based on P01, BODC Parameter Usage Vocabulary, which is available at: http://seadatanet.maris2.nl/bandit/browse_step.php. Each measurement value has a quality flag indicator, based on the standard SeaDataNet scheme (L20 SEADATANET MEASURAND QUALIFIER FLAGS1 ). This document describes the steps of data and metadata validation needed to achieve the standardised, harmonised and validated datasets concerning contaminants in the marine environment, in water, sediment and biota matrices. EMODnet Chemistry is focused on the parameter groups listed in the table below. The links between P36 (Terms based on the EU MSFD used by the EMODNET chemistry lot to provide coarse granularity groupings of the chemical parameters it covers) and P02 (terms describing fine-grained related groups of measurement phenomena designed to be used in dataset discovery interfaces) are in the process of revision as more experience is gained in the field. The updated links are available here: http://vocab.nerc.ac.uk/collection/P36/current/