The Arctic sea ice has declined significantly during the last years.

The Arctic sea ice has declined significantly during the last years.

(Alfred-Wegener-Institute / Mario Hoppmann (CC-BY 4.0))

The German research vessel Polarstern in the central Arctic.

The German research vessel Polarstern in the central Arctic.

(Alfred-Wegener-Institute / Mario Hoppmann (CC-BY 4.0))

Ny-Ålesund lidar measurements and northern lights.

Ny-Ålesund lidar measurements and northern lights.

(Alfred-Wegener-Institute / René Bürgi, 2015)

The German research aircraft Polar 6 is taking off for a measurement flight.

The German research aircraft Polar 6 is taking off for a measurement flight.

(Alfred-Wegener-Institute / Michael Fischer (CC-BY-NC 4.0))

Aerial view of Ny-Ålesund in the summer 2012.

Aerial view of Ny-Ålesund in the summer 2012.

(Alfred-Wegener-Institute / Marion Maturilli, 2012)

Ground-based measurements in the Arctic.

Ground-based measurements in the Arctic.

(Alfred-Wegener-Institute / Marion Hoppmann (CC-BY-NC 4.0) )

Polar 5 and Polarstern off Longyeabyen.

Polar 5 and Polarstern off Longyeabyen.

(Alfred-Wegener-Institute / Thomas Krumpen, (CC-BY-NC 4.0))

Tethered balloon including several sensor packages from TROPOS.

Tethered balloon including several sensor packages from TROPOS.

(Holger Siebert, TROPOS)

Ny-Ålesund radiation measurements at atmospheric observatory.

Ny-Ålesund radiation measurements at atmospheric observatory.

(Holger Siebert, Jürgen Graeser, 2013)

The Transregional Collaborative Research Centre TR 172 provides a unique research environment to study the increase of Arctic near-surface temperature during the last decades, which is commonly referred to as Arctic Amplification, from complementary viewpoints, bridging various observations and modelling approaches.

University of Leipzig, as the coordinating University has applied together with the University of Bremen, University of Cologne and the Alfred-Wegener Institute for Polar and Marine Research, and the Leibniz Insitute for Tropospheric Research for support of this research project.

The overarching scientific objective of TR 172 is to identify, investigate, and evaluate the key processes contributing to Arctic Amplification, improve our understanding of the major feedback mechanisms, and quantify their relative importance for Arctic Amplification.

The TR 172 is funded by the Deutsche Forschungsgemeinschaft – DFG.

Funded by

deutsche-forschungsgemeinschaft