Movie S3.

Low-speed movie of experimental burn in cardboard fuels uses smoke to visualize vorticity of the airflow behind the approaching flame zone.

Role of buoyant flame dynamics in wildfire spread

Mark A. Finney, Jack D. Cohen, Jason M. Forthofer, Sara S. McAllister, Michael J. Gollner, Daniel J. Gorham, Kozo Saito, Nelson K. Akafuah, Brittany A. Adam, and Justin D. English

PNAS. 2015. 112:9833-9838 DOI: 10.1073/pnas.1504498112