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The announcement was sent on the 28 February 2018 from the CMIP Panel Chair Prof. Veronica Eyring (German Aerospace Centre and University of Bremen, Germany) to APPLICATE WP3 leader Dr. Doug Smith (Met Office Hadley Centre, UK) who is coordinating the experiments.

Polar amplification is the phenomenon by which external radiative forcing produces a larger change in surface temperature at high latitudes than the global average. It is a key aspect of anthropogenic climate change, but its causes and consequences are not yet fully understood. The Polar Amplification Model Intercomparison Project (PAMIP) will improve our understanding of this phenomenon through a coordinated set of numerical model experiments documented in a research article to be submitted to the journal Geoscientific Model Development. In particular, PAMIP will address the relative roles of local sea ice and remote sea surface temperature changes in driving polar amplification, and the response of the global climate system to changes in Arctic and Antarctic sea ice. These issues will be investigated with multi-model simulations that are forced with different combinations of sea ice and sea surface temperatures representing present day, pre-industrial and future conditions.

Dr. Smith commented: “I am delighted with this news and thankful to the CMIP panel for their assessment and to the team that worked hard on designing the experimental protocol. PAMIP will improve our understanding of the physical processes that drive polar amplification and its global climate impacts, thereby reducing the uncertainties in future projections and predictions of climate change and variability.”

The international team that developed the PAMIP experimental design and will carry out the simulations includes climate scientists from sixteen organisations spread across nine countries, of which four (Met Office Hadley Centre, Barcelona Supercomputing Centre, Alfred Wegener Institute and CERFACS/CNRS) are also APPLICATE partners.