Biomarker data from surface sediments and environmental data from the (sub)Arctic ...

• Main Authors: Kolling, Henriette Marie, Stein, Ruediger, Fahl, Kirsten, Sadatzki, Henrik, de Vernal, Anne, Xiao, Xiaotong
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2020
• Subjects: Phytoplankton; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.905494; https://doi.pangaea.de/10.1594/PANGAEA.905494

For the interpretation of proxy reconstructions it is necessary to understand the recent signals of different sea-ice proxies from various regions. We present 260 new sediment surface samples collected in the (sub-) Arctic Oceans that were analysed for specific sea-ice (IP~25~) and open-water phytoplankton biomarkers (brassicasterol, dinosterol, HBI III). This new biomarker dataset was combined with 615 previously published biomarker surface samples into a pan-Arctic database. This comprehensive dataset is compared to satellite-based sea-ice concentrations and other environmental parameters to contribute to a better understanding of biomarker distributions as a basis for sea-ice reconstructions on a (sub-) Arctic scale. ...