Sediment core data from The Archipelago Sea, northern Baltic Sea, Finland, 2015 ...

• Main Authors: Jokinen, Sami A, Virtasalo, Joonas J, Jilbert, Tom, Kaiser, Jérôme, Dellwig, Olaf, Arz, Helge Wolfgang, Hänninen, J, Arppe, Laura, Collander, Miia, Saarinen, Timo
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2018
• Subjects: Piston corer; sami
• Online Access: https://dx.doi.org/10.1594/pangaea.891284; https://doi.pangaea.de/10.1594/PANGAEA.891284

The anthropogenically forced expansion of coastal hypoxia is a major environmental problem affecting coastal ecosystems and biogeochemical cycles throughout the world. The Baltic Sea is a semi-enclosed shelf sea whose central deep basins have been highly prone to deoxygenation during its Holocene history, as shown previously by numerous paleoenvironmental studies. However, long-term data on past fluctuations in the intensity of hypoxia in the coastal zone of the Baltic Sea are largely lacking, despite the significant role of these areas in retaining nutrients derived from the catchment. Here we present a 1500-year multiproxy record of near-bottom water redox changes from the coastal zone of the northern Baltic Sea, encompassing the climatic phases of the Medieval Climate Anomaly (MCA), the Little Ice Age (LIA), and the Modern Warm Period (MoWP). Our reconstruction shows that although multicentennial climate variability has modulated depositional conditions and delivery of organic matter (OM) to the basin the ... : Supplement to: Jokinen, Sami A; Virtasalo, Joonas J; Jilbert, Tom; Kaiser, Jérôme; Dellwig, Olaf; Arz, Helge Wolfgang; Hänninen, J; Arppe, Laura; Collander, Miia; Saarinen, Timo (2018): A 1500-year multiproxy record of coastal hypoxia from the northern Baltic Sea indicates unprecedented deoxygenation over the 20th century. Biogeosciences, 15(13), 3975-4001 ...