Home Open positions About Us About Us Scientific Steering Group PhD Representatives Participating Institutions Associated Members Scientific Advisory Board Collaborations Projects Research Area A – Aerosols, clouds and chemistry A01Aircraft emissions & composition A02Radiation & ice clouds A03Aerosol nucleation A04Aerosol and cirrus clouds A05Organic aerosol A06Aerosol and ice nuclei Research Area B – Small scale dynamics and microphysics B01Gradients and mixing B02Aerosol transport from PBL B03Deep exchange B06Small-scale dynamics B07Cirrus & tropopause structure B08Transport from cyclones B09Moisture & circulation Research Area C – Large scale distributions, processes and impact C01Water vapour and ISSRs C02Transport timescales C03Variability in UTLS transport C05Ozone reservoir C06Aerosol transport from UTLS C07Global composition C08Convection & moisture C09Gravity waves & transport Area Z – Central projects Z01Coordination & observations Z02Data management Z03Joint model development Meetings Publications Outreach Field Campaigns TPEx Other Campaigns Data Observational Data Model Data Downloads TPChange 5 Projects Phase I Projects TPChange research areas Research Area A: Aerosols, clouds and chemistry A01 Aerosol-Cloud inTeraction and water Vapour transport in high UPdraft regimes (ACTIV-UP) A02 Radiative effects of convective ice clouds in the UTLS from satellite observations (SAT-ICE) A03 Aerosol nucleation in the upper troposphere A04 Sources and processes controlling aerosol composition in the UTLS – From tropical mosoon to extratropical regions A05 Molecular fingerprints of organic aerosol in the UTLS region A06 Source apportionment of UTLS refractory aerosol and ice-nucleating particles A07 Processing of organic compounds in ice particles during deep convective transport into the UTLS Research Area B: Small scale dynamics and microphysics B01 Fine scale composition gradients and mixing at the tropopause region B02 Transport of aerosols and precursors from the planetary boundary layer into the UTLS – BrIdging Surface emissions, Transport and UTLS Matter (BISTUM) B03 Deep exchange with the UTLS: the Tibetan pipe B04 Structure formation and mixing in the extratropical tropopause region B06 Impact of small-scale dynamics on UTLS transport and mixing B07 Impact of cirrus clouds on tropopause structure B08 Lagrangian analysis of the role of extratropical cyclones for UTLS aerosol and humidity Research Area C: Large scale distributions, processes and impact C01 Large scale variations of water vapour and ice supersaturated regions C02 Deriving transport timescales in the UTLS from age tracers and the propagation of the seasonal cycle of CO2 C03 Variability in UTLS transport from model age of air and impacts on composition C04 Seasonality, variability and trends of halogenated trace gases in the UTLS C05 Transport processes regulating the lowermost stratospheric ozone reservoir C06 The importance of upper troposphere aerosol transport and processing for low and mid troposphere aerosol concentrations C07 The composition of the global UTLS nowadays and at the end of the 21st century Central Projects Z01 Central coordination and observational data synthesis Z02 Data management and computing Z03 Joint model development and modelling synthesis
