Thursday, November 3, 2022, 11:00 am — Videoconference / Virtual Event (see link below)
Aircraft measurements have revealed that super coarse dust (diameter > 10 mm) is surprisingly abundant in Earth's atmosphere. However, most current models either neglect or greatly underestimate the abundance of super coarse dust. In this seminar, I explore the causes of this model underestimation of super coarse dust. I derive a new parameterization for the size distribution of emitted dust aerosols that matches measurements of super coarse dust close to source regions. Despite this improvement in the accuracy of coarse dust emissions, models still greatly underestimate super coarse dust in dust outflow regions. Thus, the model underestimation of super coarse atmospheric dust is in part due to the underestimation of super coarse dust emission and likely in part due to errors in deposition processes.
Hosted by: Olga Mayol-Bracero
17854 | INT/EXT | Events Calendar
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