Environmental & Climate Sciences Department Seminar

"Turbulent Flux Measurements of the Near-surface and Residual-layer Small Particle Events"

Presented by Nicholas Meskhidze, North Carolina State University

Thursday, March 24, 2022, 11:00 am — Videoconference / Virtual Event (see link below)

Many New Particle Formation (NPF) events occur in a residual layer, near the top of the boundary layer. Therefore, measurements of the meteorological parameters, precursor gases, and aerosol loadings conducted at the ground are often not representative of the conditions where the NPFs take place. I will present new measurements obtained at the Southern Great Plains research site that suggests that 1) turbulent fluxes of 3-10 nm particles provide a good indication for the vertical location of NPFs; 2) organic compounds dominate the chemical composition of sub-50 nm particles 3) current methodologies may be inadequate for estimating dry deposition velocity of sub-10 nm particles.

Hosted by: Chongai Kuang

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