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The CLIMICE project

 
The CLIMICE project

   

For further info on the project contact:

  • Email - Kaarina Weckström: kaaw@geus.dk
  • CLIMICE aims to reconstruct late Holocene changes in sea ice variability and regional sea surface temperatures (SST) in the Labrador Sea area using high-resolution sediment records. Information of past natural variability in climate is essential for refining and validating future climate change models and improving predictions. The study area is climatologically crucial, since melt water from sea ice and icebergs entrained by the Labrador Current directly affects the formation of North Atlantic Deep Water, which presently drives the redistribution of heat between the hemispheres.    

    The sediments will be analysed using an innovative biological and chemical multi-proxy approach based on 1) study of fossil diatom assemblages and diversity, focusing on ice diatoms, and diatom-inferred reconstruction models for sea surface temperatures, and 2) IP25, a novel chemical tracer for sea ice. The study will further include sediment alkenone data, a well-established chemical proxy for SST. Paleoceanographic data from dinoflagellate and foraminifera studies of the same sediment cores will also be available. Thus, this study provides a unique possibility to compare results from IP25 analysis with well-established climate proxies from the same sediment cores.


     


    Edited by:
    Jacob Geltzer, GEUS - jgel@geus.dk

    The Climice project