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Data curation is offered in three levels:
Level 1 data are e.g. meant for data following the EML-standard (Ecological Metadata Language) or not community agreed standards for data exchange
Level 2 data are for non-recurring projects, the data are published as static data files.
Level 3 data are meant for long-term projects with multiple submissions and versions, the data are published dynamically with ‘snapshots’.
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