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Amundsen_Science_Arctic_Expedition

Scientists collecting sediments samples from a boxcore, gravity core and piston core from the science icebreaker CCGS Amundsen, in the High-Arctic. The Arctic Ocean currently experiences fast environmental changes due to its
high response to global climate change. These changes notably include :
- reduced summer ice thickness and extent;
- reduction in multi-year ice extent;
- altered drift paths;
- major heat flow from Pacific;
The long-term natural variability is poorly constrained, leading to uncertainties
in numerical climate models. In this context, sedimentary records are of great
importance to decipher the processes controlling the Arctic climate and
oceanographic variability for time periods prior to instrumental data. Objectives of the sample collecting is: Compare the spatial distribution patterns of bulk minerals and elemental
geochemistry during the Little Ice Age (LIA, between 1550 and 1850 AD),
the Medieval Warm period (MWP, between 900 and 1300 AD), and the
modern warming;
2. Identify different sedimentary provinces, source areas, and transport
pathways of terrigenous material during these climatic periods;
3. Better document and understand the fundamental processes controlling
the sediment dynamics within the western Canadian Arctic since the last
millennium.

Filename
20190724_Amundsen_Science_Arctic_Expedition_MAP_033407_K.jpg
Copyright
© 2021 Marc-Andre Pauze - ALL RIGHTS RESERVED
Image Size
5181x3447 / 5.2MB
Contained in galleries
Annual Amundsen Expedition
Scientists collecting sediments samples from a boxcore, gravity core and piston core from the science icebreaker CCGS Amundsen, in the High-Arctic. The Arctic Ocean currently experiences fast environmental changes due to its<br /> high response to global climate change. These changes notably include :<br /> - reduced summer ice thickness and extent;<br /> - reduction in multi-year ice extent;<br /> - altered drift paths;<br /> - major heat flow from Pacific;<br /> The long-term natural variability is poorly constrained, leading to uncertainties<br /> in numerical climate models. In this context, sedimentary records are of great<br /> importance to decipher the processes controlling the Arctic climate and<br /> oceanographic variability for time periods prior to instrumental data. Objectives of the sample collecting is: Compare the spatial distribution patterns of bulk minerals and elemental<br /> geochemistry during the Little Ice Age (LIA, between 1550 and 1850 AD),<br /> the Medieval Warm period (MWP, between 900 and 1300 AD), and the<br /> modern warming;<br /> 2. Identify different sedimentary provinces, source areas, and transport<br /> pathways of terrigenous material during these climatic periods;<br /> 3. Better document and understand the fundamental processes controlling<br /> the sediment dynamics within the western Canadian Arctic since the last<br /> millennium.