Activities
Collaborative Initiatives for Climate Understanding
Advancing Atmospheric Research
At APARC, our activities are strategically organized under three primary themes to address critical scientific questions concerning the atmosphere’s role in climate change. These themes include Atmospheric Dynamics and Predictability, Chemistry and Climate, and Long-term Records for Climate Understanding. Each theme encompasses various focused activities, such as the Atmospheric Composition and the Asian Monsoon (ACAM), the Chemistry-Climate Model Initiative (CCMI), and the Reanalysis Intercomparison Project (A-RIP). By fostering international collaboration and integrating process studies, observations, and modeling, APARC aims to enhance our comprehension of atmospheric processes and their influence on the global climate system.
Exploring Key Themes in Atmospheric and Climate Research
Overview of Our Activities
- ACAM – Atmospheric Composition and the Asian Monsoon
- A-RIP – APARC Reanalysis Intercomparison Project
- ATC – Atmospheric Temperature Changes and their Drivers
- CCMI – Chemistry-Climate Model Initiative
- DynVar – Dynamical Variability
- FISAPS – Fine Scale Atmospheric Processes and Structures
- Gravity Waves
- HTHH – Hunga Tonga-Hunga Ha’apai stratospheric impacts
- LEADER – Large Ensembles for Attribution of Dynamically-driven ExtRemes
- LOTUS – Long-term Ozone Trends and Uncertainties in the Stratosphere
- OCTAV-UTLS – Observed Composition Trends And Variability in the Upper Troposphere and Lower Stratosphere
- QBOi – Towards Improving the Quasi-Biennial Oscillation in Global Climate Models
- SNAP – Stratospheric Network for the Assessment of Predictability
- SOLARIS-HEPPA – Solar Influences on Climate
- SSiRC – Stratospheric Sulfur and its Role in Climate
- TUNER – Towards Unified Error Reporting
- VSLS – Impact of chlorinated very-short-lived substances on stratospheric ozone
Staying Up-To-Date
Latest Announcements

Abstract submission open: Third International Conference on Subseasonal to Seasonal to Decadal Prediction (S2S2D), Reading, UK, 7-11 September 2026
APARC ATC Spring Meeting, 23–25 April 2025 in Graz, Austria at the Wegener Center for Climate and Global Change, University

Announcement: Middle Atmosphere conference at the AMS Annual Meeting, Houston, TX, US, 25-29 January 2026
APARC ATC Spring Meeting, 23–25 April 2025 in Graz, Austria at the Wegener Center for Climate and Global Change, University

CMIP Community Workshop, Kyoto, Japan, 9-13 March 2026 – call for side sessions and abstracts
APARC ATC Spring Meeting, 23–25 April 2025 in Graz, Austria at the Wegener Center for Climate and Global Change, University
Driving Progress Through Expert Collaboration
Collaborative Working Groups
- QUOCA – QUasibiennial oscillation and Ozone Chemistry interactions in the Atmosphere
Focusing on Core Areas of Atmospheric Science