IN SITU AND REMOTE SENSING OF SULFATE AEROSOLS

English, Dylan

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https://hdl.handle.net/2142/122309 Copy

Description

Title

IN SITU AND REMOTE SENSING OF SULFATE AEROSOLS

Author(s)

English, Dylan

Contributor(s)

• Murphy, Daniel
• Boone, Chris
• Bernath, Peter F.

Issue Date

2023-06-21

Keyword(s)

Atmospheric science

Abstract

Stratospheric sulfate aerosols play a crucial role in the physical and chemical processes in the Earth’s atmosphere. They have a strong impact on climate by absorbing and scattering both incoming and outgoing radiation. The Atmospheric Chemistry Experiment Fourier Transform Spectrometer is recording infrared transmittance spectra of the Earth's limb from low Earth orbit (solar occultation). These infrared spectra provide accurate measurements of sulfate aerosol composition$^{1}$, but have difficulty providing information on physical properties such as the particle size distribution. In contrast, optical extinction measurements, such as from the SAGE III/ISS instrument on the International Space Station, provide information on physical properties, but little data on composition. \emph{In situ} measurements, made from aircraft, with a mass spectrometer and laser light scattering provide some information on composition and reliable information on physical properties$^{2}$. By combining the information from satellite observations and \emph{in situ} measurements, a more complete characterization of stratospheric sulfate aerosols has been obtained. \begin{thebibliography}{} \bibitem{} P. Bernath, C. Boone, A. Pastorek, D. Cameron, M. Lecours (2023). Satellite characterization of global stratospheric sulfate aerosols released by Tonga volcano. Journal of Quantitative Spectroscopy and Radiative Transfer 299, 108520 DOI:10.1016/j.jqsrt.2023.108520 \bibitem{} D. Murphy, K. Froyd, I. Bourgeois, C. Brock, A. Kupc, J. Peischl, G. Schill, C. Thompson, C. Williamson, P. Yu (2021). Radiative and chemical implications of the size and composition of aerosol particles in the existing or modified global stratosphere. Atmos. Chem. Phys. 21, 8915 DOI:10.5194/acp-21-8915-2021. \end{thebibliography}

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

Text

Language

eng

Handle URL

https://hdl.handle.net/2142/122309

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