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 Projects TPChange research areas Research Area A: Aerosols, clouds and chemistry A01 Impact of aircraft emissions and convection on the composition of the ULTS A02 Long-term evolution of mid-latitude ice and mixed-phase cloud properties and their radiative effects from geostationary satellite observations A03 Aerosol nucleation in the upper troposphere A04 Composition and transport of aerosol particles in the upper troposphere and lower stratosphere (UTLS) and their interactions with cirrus clouds A05 Chemical characterisation of organic aerosol in the UTLS A06 Composition and variability of UTLS refractory aerosol and ice-nucleating particles Research Area B: Small scale dynamics and microphysics B01 Exchange of humidity and aerosol particles at the tropopause: Dynamics versus moist diabatics and radiation B02 Cross-seasonal Investigation Regarding the Composition of atmospheric trace matter Up to UTLS heights – CIRCUS B03 Moist convection and tracer transport into and out of the Asian Summer Monsoon Anticyclone B06 Impact of small-scale dynamics on UTLS transport and mixing B07 Impact of cirrus clouds on tropopause structure B08 Lagrangian analysis of moisture, aerosols, trace gases and water isotope distribution in the extra-tropical UTLS B09 The role of UTLS moisture for the extra-tropical mean circulation Research Area C: Large scale distributions, processes and impact 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 effects 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 Central Projects Z01 Central coordination and campaign management Z02 Data management and integration Z03 Joint model development and modelling synthesis Phase I Projects which are not continued in Phase II A07 Processing of organic compounds in ice particles during deep convective transport into the UTLS B04 Structure formation and mixing in the extratropical tropopause region C04 Seasonality, variability and trends of halogenated trace gases in the UTLS
