## Description *Extreme Wildfire Data Hub for Improved Decision Making (EWED)* aims to understand extreme wildfires better. EWED is a European Union funded project coordinated by the [Pau Costa Foundation](https://www.paucostafoundation.org/en/proyectos/ewed/) and unites scientists and fire fighters to bring new scientific knowledge to operational use. EWED is continued in its successor project [[ODET]]. ## Output - In [[Publications#^Roelofs2026|The dynamics and atmospheric impact of fire-induced circulations in idealised large-eddy simulations inspired by the Santa Coloma de Queralt fire]] we use [[MicroHH]] simulations of a stationary fire to show that the existence of a fire-induced circulation is governed by the ambient wind speed component aligned with the circulation. The circulation, with updrafts above the fire, downdrafts 2 km ahead, and reversed surface winds in between, deepens and then thins the boundary layer ahead of the fire by up to 2 km. ^output-Roelofs2026 - The 3D visualization below shows a simulation of the fire plume of the Palisades fire and the wind gusts at surface level.  - The 3D visualization below shows a simulation of the formation of pyrocumulus due to the condensation of water in a strongly buoyant fire plume.  - The 3D visualization below shows the formation of pyrocumulus under strong wind conditions.  - The 3D visualization below shows a simulation of the formation of pyrocumulus due to the condensation of water in a strongly buoyant fire plume.  - The 3D visualization below shows a dry fire plume in a windy environment. .