Articles | Volume 18, issue 16
https://doi.org/10.5194/acp-18-11863-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-18-11863-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
20 Aug 2018
Research article |
| 20 Aug 2018
| 20 Aug 2018
Wildfires as a source of airborne mineral dust – revisiting a conceptual model using large-eddy simulation (LES)
Leibniz Institute for Tropospheric Research (TROPOS), Leipzig,
Germany
Michael Jähn
Leibniz Institute for Tropospheric Research (TROPOS), Leipzig,
Germany
now at: Swiss Federal Laboratories for Material Science
and Technology (Empa), Dübendorf, Switzerland
Kerstin Schepanski
Leibniz Institute for Tropospheric Research (TROPOS), Leipzig,
Germany
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Short summary
Wildfires can disturb the lower tropospheric wind conditions and are able to mobilize and inject mineral dust particles into the atmosphere. This study presents a conceptual model of fire-driven dust emissions using large-eddy simulations and evaluates how efficiently wildfires are able to modify the near-surface winds. The results show that typical threshold velocities necessary for dust emission are frequently exceeded and wildfires should be considered a source of airborne mineral dust.
Wildfires can disturb the lower tropospheric wind conditions and are able to mobilize and inject...
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