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Colloquium

Department of Atmospheric Science

Tues., Mar. 6, 3:10 pm, EN6085

A modern, medium-cost, light-weight aerosol sampling suite for airborne observations

Dr. Markus Petters

North Carolina State University

Abstract

In this seminar I will present a historical summary of the main research themes of my research group in the form of brief research highlights. The themes include:

(1) Laboratory studies using size and supersaturation resolved cloud condensation nuclei measurements to examine the question of how organic compounds contribute to cloud condensation nucleus activity

(2) Laboratory studies using tandem differential mobility analyzers to study aerosol equilibrium water uptake, evaporation rates, and phase transitions of crystalline and amorphous sub-200 nm aerosols.

(3) Laboratory experiments to study the mechanism how particles nucleate ice in the immersion mode.

(4) Ground-based field experiments studying atmospheric aerosol properties including size distributions, size-resolved CCN properties, sub-saturated hygroscopicity distributions, aerosol water content, ice nucleation spectra, fluorescent (biological) aerosol properties, and black carbon properties.

Next, I will discuss the airborne instrumentation my group and I would contribute, develop, deploy, and integrate with the existing flight facilities. Here the focus will be on a modern medium-cost, lightweight suite of aerosol instruments that can be used on unmanned aerial vehicles, the King Air, or both. Finally, I will lay out a science plan that will guide the initial research foci of the group I would establish at the University of Wyoming.


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University of Wyoming,

Atmospheric Science,

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Email: geerts@uwyo.edu

1000 E. University Ave. Laramie, WY 82071
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