FLEXPART in the Cloud

Welcome to FLEXPART in the Cloud

Developed by the Department of Meteorology and Geophysics, University of Vienna

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This service is under development. Please feel free to try out things and if you are interested in more or have feedback or criticism, please send us an email.

FLEXWEB builds on FLEXPART

FLEXPART (FLEXible PARTicle dispersion model) is a widely used Lagrangian Particle Dispersion Model (LPDM) designed for simulating the atmospheric transport, diffusion, and deposition of tracers. It operates by tracking the trajectories of a large number of 'particles' released into the atmosphere, allowing it to calculate source-receptor relationships, concentration fields, and atmospheric transport patterns for various applications (e.g., pollutant releases, wildfire smoke, or greenhouse gases). For more information please refer to flexpart.eu
This service employs the latest version of ECMWF ERA5 reanalysis data, which provides a comprehensive and high-resolution dataset of atmospheric conditions. The ERA5 dataset is crucial for initializing and driving the FLEXPART model, ensuring accurate simulations of particle dispersion based on real-world meteorological data.
Bakels, L., Tatsii, D., Tipka, A., Thompson, R., Dütsch, M., Blaschek, M., Seibert, P., Baier, K., Bucci, S., Cassiani, M., Eckhardt, S., Groot Zwaaftink, C., Henne, S., Kaufmann, P., Lechner, V., Maurer, C., Mulder, M. D., Pisso, I., Plach, A., Subramanian, R., Vojta, M., & Stohl, A. (2024). FLEXPART version 11: Improved accuracy, efficiency, and flexibility. EGUsphere, 1–50. https://doi.org/10.5194/egusphere-2024-1713.
Hersbach, H., Bell, B., Berrisford, P., Biavati, G., Horányi, A., Muñoz-Sabater, J., Nicolas, J., Peubey, C., Radu, R., Rozum, I., Schepers, D., Simmons, A., Soci, C., Dee, D., & Thépaut, J.-N. (2020). The ERA5 global reanalysis. Quarterly Journal of the Royal Meteorological Society, 146(730), 1999–2049. https://doi.org/10.1002/qj.3803
Please visit us on our website flexteam.univie.ac.at or at our department Department of Meteorology and Geophysics at the University of Vienna.
FLEXWEB version v2026.09.2 from 2026-09-11