Picosecond Short-Range Elastic Backscatter Lidar (PSR-EBL) : a novel technique for remote measurement of black carbon emissions - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2023

Picosecond Short-Range Elastic Backscatter Lidar (PSR-EBL) : a novel technique for remote measurement of black carbon emissions

Romain Ceolato
Andres E. Bedoya-Velásquez
Louise Ganeau
  • Fonction : Auteur
  • PersonId : 1189791
  • IdRef : 260174122
Frederic Fossard
Lucas Paulien
  • Fonction : Auteur
  • PersonId : 1151403
  • IdRef : 26367245X
David Delhaye
  • Fonction : Auteur
  • PersonId : 960977
Vincent Mouysset
  • Fonction : Auteur
  • PersonId : 938456
Sidonie Lefebvre
  • Fonction : Auteur
  • PersonId : 925441
Claudio Mazzoleni
  • Fonction : Auteur
Christopher Sorensen
  • Fonction : Auteur
Matthew J Berg
  • Fonction : Auteur

Résumé

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
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Dates et versions

hal-04518772 , version 1 (24-03-2024)

Identifiants

  • HAL Id : hal-04518772 , version 1

Citer

Romain Ceolato, Andres E. Bedoya-Velásquez, Louise Ganeau, Frederic Fossard, Lucas Paulien, et al.. Picosecond Short-Range Elastic Backscatter Lidar (PSR-EBL) : a novel technique for remote measurement of black carbon emissions. International Conference on Carbonaceous Particles in the Atmosphere, Jul 2023, Bereley, United States. ⟨hal-04518772⟩
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