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
- 20170728_Amundsen_Science_Arctic_Expedition_MAP_145915_K.jpg
- Copyright
- © 2021 Marc-Andre Pauze - ALL RIGHTS RESERVED
- Image Size
- 5001x3334 / 4.0MB
- Contained in galleries
- Annual Amundsen Expedition