Dissolved oxygen profiles from sediment cores collected in the North Sea between 2023 and 2024 and the Celtic Sea during 2023

These sample data are from sediment cores collected in the North Sea and the Celtic Seas on three surveys undertaken between 2023 and 2024 using a NIOZ (Royal Netherlands Institute for Sea Research design) Box Corer conducted by the Research Vessel (RV) Cefas Endeavour. Sub cores were analysed for and data present for Dissolved Oxygen (DO2) and Oxygen Penetration Depth (OPD) to better understand carbon cycling as redox levels within sediments are a controlling factor.