Research Area C: Large scale distributions, processes and impact

Research Questions (C)

RQ-C1: What is the regional and temporal variability of trace gas and aerosol distributions on seasonal and multi-annual time scales in the UTLS?

RQ-C2: Which large scale processes dominate the concentrations of radiatively important trace gases and particles in the UTLS?

RQ-C3: Which (large scale) chemical, radiative and dynamical feedbacks impact the UTLS and regions beyond the UTLS, e.g. the surface climate and the stratospheric circulation, and how are these feedbacks modified by climate change?

Projects in Research Area C

C01 Life Cycle of Ice Supersaturated Regions in the UTLS

C02 AirCore observations to constrain changes in stratospheric circulation

C03 Improving process understanding and model representation of stratospheric water vapour and related climate feedbacks

C05 Large-scale structure and variability of lowermost stratospheric water vapour

C06 The importance of upper troposphere aerosol transport and processing for low- and mid-troposphere aerosol concentrations

C07 Controlling Factors of Oxidants and Aerosols in the Upper Troposphere and Lower Stratosphere and the Anthropogenic Influence (COATS)

C08 Convection and its moisture transport into the UTLS in Lagrangian and Eulerian frameworks

C09 Role of the representation of gravity waves for downward transport into the UTLS