"In ReACT we work on numerical model research and development, focusing on the representation of atmospheric dynamics and processes at various scales. Areas of research include:

• Aerosol interactions and feedbacks in the atmosphere (direct, semi-direct and indirect effects).
• Severe atmospheric phenomena (e.g. hurricanes, floods, duststorms, volcanic eruptions)
• Air pollution, dispersion modeling (e.g. dust, smoke, volcanic ash)
• Climate change (e.g. climatic indexes, climate scenarios)
• Data assimilation of in-situ and remote sensing data (e.g. weather radar, satellite data, radiosondes) 
• Nowcasting
• Stratosphere-troposphere interactions and modelling natural climate variability

Operational numerical support is also provided in the framework of several European and National projects (ASKOS, CalVal, NEWTON, PANACEA e.t.c.) and modeling services are available in both the public and private sector (companies, prefectures e.t.c). Atmospheric modeling research and applications in ReACT is facilitated through a number of numerical tools such as WRF (ARW, Chem, NMM, Hydro), DREAM, FLEXPART, HYSPLIT and CR-SIM".

- Dr. Christos Spyrou