Arctic Paleoceanography Cruise KH21-234 with R/V Kronprins Haakon | Arctic Paleoceanography Cruise KH21-234 with R/V Kronprins Haakon
2022
De Schepper, Stijn | Larsen, Aud | Blindheim, Dag Inge | Cordier, Tristan | Grant, Danielle | Hestetun, Jon Thomassen | Häkli, Katja | Lefevere, Simon Pierre | Liltved, Allegra | Monsen, Stig | Mugu, Sigrid | Ray, Jessica Louise | Steinsland, Kristine | Trofimova, Tamara | Weiner, Agnes
We set sail from Longyearbyen on 30.6.2021 to collect surface sediments, long sediment archives, water and plankton samples. The study area is located north of Svalbard, within the seasonal and permanent sea ice covered Arctic Ocean. We took stations N of Svalbard, near Nordaustlandet, Sophia Basin, Yermak Plateau and on the shelf east of Svalbard. In total, we had 52 stations. We deployed the multicorer at least once at every station and sampled the core tops already onboard. These samples will be included in the Arctic Surface Sediment DNA Database, which we will use to establish new aDNA based sea ice proxies. We recovered gravity cores from 12 stations that can be used to reconstruct the Arctic sea ice history in the Holocene, last glacial and likely also Last Interglacial. We collected ice and water and filtered these for eDNA and biomarkers, and water for tracing the isotope signal of the different water masses in the region (Atlantic Water, Polar Water).
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