EGU21-15538, updated on 04 Mar 2021
EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Advective pathways of nutrients and key ecological substances in the Arctic

Myriel Vredenborg, Benjamin Rabe, and Sinhue Torres-Valdès
Myriel Vredenborg et al.
  • Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung (

The Arctic Ocean is undergoing remarkable environmental changes due to global warming. The rise in the Arctic near-surface air temperature during the past decades is more than twice as high as the global average, a phenomenon known as the “Arctic Amplification”. As a consequence the Arctic summer sea ice extent has decreased by more than 40 % in recent decades, and moreover a year-round sea ice loss in extent and thickness was recorded. By opening up of large areas formerly covered by sea ice, the exchange of heat, moisture and momentum between the ocean and the atmosphere intensified. This resulted in changes in the ocean circulation and the water masses impacting the marine ecosystem. We investigate these changes by using a large set of hydrographic and biogeochemical data of the entire Arctic Ocean. To better quantify the current changes in the Arctic ecosystem we will compare our observational data analysis with high-resolution biogeochemical atmosphere-ice-ocean model simulations.

How to cite: Vredenborg, M., Rabe, B., and Torres-Valdès, S.: Advective pathways of nutrients and key ecological substances in the Arctic, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-15538,, 2021.

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