eaf74c5a-b92c-458a-9218-357143bad9bf Sample csv file https://github.com/QCDIS/Biodiversity_time_series_analyses_from_European_marine_ecosystems/blob/main/data/metadata_Example.csv data preprocessing Marco-Bolo None Senckenberg Society For Nature Research Andrés Peredo Arce Postdoctoral researcher andres.peredo@senckenberg.de https://orcid.org/0000-0002-6353-9121 LifeWatch ERIC Lucia Vaira Service Centre ICT Coordinator lucia.vaira@lifewatch.eu https://orcid.org/0000-0002-5935-6074 2025-11-05 en This is an example of the output metadata file of the <a href="https://metadatacatalogue.lifewatch.eu/srv/eng/catalog.search#/metadata/258e222b-5945-4efd-8292-b4dea4b1308c" target="_blank">Species occurrence data cleaner</a> in the <a href="https://metadatacatalogue.lifewatch.eu/srv/eng/catalog.search#/metadata/52472525-ddf7-4521-abc9-f4b8a98b82ae" target="_blank">Biodiversity Time Series Analyses from European Marine Ecosystems workflow</a>. The columns of the CSV mostly overlap with the columns of the metadata input file. In particular, the output has an additional column nyear and the input has an additional column siteid. MIT License Senckenberg Society For Nature Research Andrés Peredo Arce Postdoctoral researcher andres.peredo@senckenberg.de https://orcid.org/0000-0002-6353-9121 MARCO-BOLO (MBO) aims to structure and strengthen European coastal and marine biodiversity observation capabilities, linking them to global efforts to understand and restore ocean health, hence ensuring that outputs respond to explicit stakeholder needs from policy, planning and industry. To this end MBO will establish and engage with a Community of Practice (CoP) to determine end-user needs with the aim of optimising marine data flows, knowledge uptake, and improving governance based on biodiversity observations. By exploiting synergies with concurrent projects MBO will develop and demonstrate new autonomous technology for biodiversity mapping and monitoring, and data streams from remote sensing, eDNA, robotics, optical and acoustic observations. Protocols for eDNA-based biodiversity observations are established and validated across applications, taxa and ecosystems. The sequence of the analytical and technical processes for the different use cases will be incorporated into operational Essential Ocean Variables (EOVs) and Essential Biodiversity Variables (EBVs) and included into online reusable workflows, contributing to the free and open access of EU and global biodiversity information facilities, and to support major EU biodiversity directives and global initiatives. The project partnership will leverage its international activities (MBON, GOOS, OBIS) and participation in UN Ocean Decade Programmes (Marine Life 2030, OBON, ODIS, Ocean Practices for the Decade) to align the MBO work programme to global CoP, ensuring European participation and leadership in global biodiversity monitoring and global science. MBO results will be designed to build upon existing capability and infrastructures, and to be relevant to existing frameworks so that outputs can be easily integrated into national, regional (EU and adjacent sea basins), and global observation systems, with no delay ensuring the reusability of the investments Europe is already making in data generation. Metadata_example csv siteid Site identifier The site-specific (e.g. alpha-numeric) identifier for each sampling location. X Row number in the metadata before filtering <span class="text-muted ng-binding" data-ng-bind-html="b.attributeDefinition">The row number in the pre-filtered metadata set where the metadata originates from.</span> taxagroup Taxonomic information The taxonimc classification using nine categories: Bacterioplankton, Phytoplankton, Macroalgae, Macrophytes, Zooplankton, Invertebrates, Fish, Birds and Mammals. sitename Site name The name of the sampling site. country Site country The country in which the data was collected (ISO 3166-1 alpha-2 codes). seaname Site sea name The name of the Sea/Ocean name (EEA https://www.eea.europa.eu/data-and-maps/figures/regional-ses-surrounding-europe-1). decimallatitude Site location latitude The decimal latitude (World Geodetic System 84 - WGS84 format). decimallongitude Site location longitude The decimal longitude (World Geodetic System 84 - WGS84 format). coordinateuncertaintyinmeters Coordinate uncertainty in meters The horizontal distance (in meters) from the given decimal latitude and longitude describing the smallest circle containing the whole location. startyearcollected Start year The first sampling year. endyearcollected End year The last sampling year. samplingprotocol Sampling protocol The name of the sampling method. nyear Number of years The total number of sampling years.