Black carbon aerosol number and mass concentration measurements by picosecond short-range elastic backscatter lidar

Authors

Romain Ceolato, Toulouse University
Andrés E. Bedoya-Velásquez, Toulouse University
Frédéric Fossard, Paris-Saclay University
Vincent Mouysset, Toulouse University
Lucas Paulien, Toulouse University
Sidonie Lefebvre, ONERA, The French Aerospace Lab
Claudio Mazzoleni, Michigan Technological UniversityFollow
Christopher Sorensen, Kansas State University
Matthew J. Berg, Kansas State University
Jérôme Yon, Normandie University

Document Type

Article

Publication Date

5-19-2022

Department

Department of Physics

Abstract

Black carbon aerosol emissions are recognized as contributors to global warming and air pollution. There remains, however, a lack of techniques to remotely measure black carbon aerosol particles with high range and time resolution. This article presents a direct and contact-free remote technique to estimate the black carbon aerosol number and mass concentration at a few meters from the emission source. This is done using the Colibri instrument based on a novel technique, referred to here as Picosecond Short-Range Elastic Backscatter Lidar (PSR-EBL). To address the complexity of retrieving lidar products at short measurement ranges, we apply a forward inversion method featuring radiometric lidar calibration. Our method is based on an extension of a well-established light-scattering model, the Rayleigh-Debye-Gans for Fractal-Aggregates (RDG-FA) theory, which computes an analytical expression of lidar parameters. These parameters are the backscattering cross-sections and the lidar ratio for black carbon fractal aggregates. Using a small-scale Jet A-1 kerosene pool fire, we demonstrate the ability of the technique to quantify the aerosol number and mass concentration with centimetre range-resolution and millisecond time-resolution.

Publisher's Statement

© The Author(s) 2022. Publisher’s version of record: https://doi.org/10.1038/s41598-022-11954-7

Publication Title

Scientific reports

Recommended Citation

Ceolato, R., Bedoya-Velásquez, A. E., Fossard, F., Mouysset, V., Paulien, L., Lefebvre, S., Mazzoleni, C., Sorensen, C., Berg, M. J., & Yon, J. (2022). Black carbon aerosol number and mass concentration measurements by picosecond short-range elastic backscatter lidar. Scientific reports, 12(1), 8443. http://doi.org/10.1038/s41598-022-11954-7
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/16054

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Version

Publisher's PDF