Past Global Changes (PAGES) WG: ACME Arctic Cryosphere Change and Coastal Marine Ecosystems (Extern organisation)

Heikkilä, M. (Styrelsemedlem), Weckström, K. (Styrelsemedlem), Sofia Ribeiro (Styrelsemedlem), Anna J. Pienkowski (Styrelsemedlem)

Aktivitet: MedlemskapstyperMedlemskap eller annan roll i forskningsnätverk


PAGES' Working Groups (WG) are temporary organizations that bring paleoscientists together from around the globe to target specific aspects of PAGES' scientific agenda. They tackle broad questions that cannot be answered by a single research team but require the integration of the wider international science community.

The Arctic cryosphere is changing rapidly due to recent climate change. The accelerated melt of the Greenland Ice Sheet, increased runoff from Arctic glaciers, diminishing sea-ice extent and volume, and thawing of permafrost all have marked impacts on the coastal environments of the Arctic. The fjords and other nearshore areas form a productive zone that Arctic ecosystems depend on, and that is easily accessible and highly important for sustaining local communities. Increased runoff from land (bringing sediments, nutrients, and organic matter to the ocean), and the declining sea-ice cover affect biogeochemical cycling, primary production, biodiversity and ecosystem services. A major challenge facing Arctic marine sciences today is the paucity of reference ecological data from which to interpret these changes. Palaeo data series covering the Holocene enable the study of climate conditions analogous to present-day warming.

The aim of ACME WG group is to assess and refine current available marine proxies that can be used to reconstruct cryosphere changes and their ecosystem impacts. A particular focus will be on the techniques and the quality of data, and on the introduction of new protocols to enable projections of the future of Arctic coastal ecosystems with greater confidence.
VidPast Global Changes (PAGES) WG: ACME Arctic Cryosphere Change and Coastal Marine Ecosystems