Mie–Raman–fluorescence lidar observations of aerosols during pollen season in the north of France
<p>The multiwavelength Mie–Raman–fluorescence lidar of the University of Lille has the capability to measure three aerosol backscattering coefficients, two extinction coefficients and three linear depolarization ratios, together with fluorescence backscattering at 466 nm. It was used to charac...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2021-07-01
|
| Series: | Atmospheric Measurement Techniques |
| Online Access: | https://amt.copernicus.org/articles/14/4773/2021/amt-14-4773-2021.pdf |
| _version_ | 1819125184604405760 |
|---|---|
| author | I. Veselovskii Q. Hu P. Goloub T. Podvin M. Choël N. Visez M. Korenskiy |
| author_facet | I. Veselovskii Q. Hu P. Goloub T. Podvin M. Choël N. Visez M. Korenskiy |
| author_sort | I. Veselovskii |
| collection | DOAJ |
| description | <p>The multiwavelength Mie–Raman–fluorescence lidar of the University of Lille has the
capability to measure three aerosol backscattering coefficients, two extinction
coefficients and three linear depolarization ratios, together with
fluorescence backscattering at 466 nm. It was used to characterize aerosols
during the pollen season in the north of France for the period March–June
2020. The results of observations demonstrate that the presence of pollen
grains in aerosol mixture leads to an increase in the depolarization ratio.
Moreover, the depolarization ratio exhibits a strong spectral dependence
increasing with wavelength, which is expected for the mixture containing
fine background aerosols with low depolarization and strongly depolarizing
pollen grains. A high depolarization ratio correlates with the enhancement of
the fluorescence backscattering, corroborating the presence of pollen
grains. Obtained results demonstrate that simultaneous measurements of
particle depolarization and fluorescence allows for the separation of dust, smoke
particles and aerosol mixtures containing the pollen grains.</p> |
| first_indexed | 2024-12-22T07:36:06Z |
| format | Article |
| id | doaj.art-7d507e8ce4634fd2a2ce447c6670ebff |
| institution | Directory Open Access Journal |
| issn | 1867-1381 1867-8548 |
| language | English |
| last_indexed | 2024-12-22T07:36:06Z |
| publishDate | 2021-07-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Measurement Techniques |
| spelling | doaj.art-7d507e8ce4634fd2a2ce447c6670ebff2022-12-21T18:33:53ZengCopernicus PublicationsAtmospheric Measurement Techniques1867-13811867-85482021-07-01144773478610.5194/amt-14-4773-2021Mie–Raman–fluorescence lidar observations of aerosols during pollen season in the north of FranceI. Veselovskii0Q. Hu1P. Goloub2T. Podvin3M. Choël4N. Visez5M. Korenskiy6Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, RussiaUMR 8518 – LOA – Laboratoire d'Optique Atmosphérique, Univ. Lille, CNRS, 59000, Lille, FranceUMR 8518 – LOA – Laboratoire d'Optique Atmosphérique, Univ. Lille, CNRS, 59000, Lille, FranceUMR 8518 – LOA – Laboratoire d'Optique Atmosphérique, Univ. Lille, CNRS, 59000, Lille, FranceUMR 8516 – LASIR – Laboratoire de Spectrochimie Infrarouge et Raman, Univ. Lille, CNRS, 59000, Lille, FranceUMR 8522 – PC2A – Physicochimie des Processus de Combustion et de l'Atmosphère, Univ. Lille, CNRS, 59000, Lille, FranceProkhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia<p>The multiwavelength Mie–Raman–fluorescence lidar of the University of Lille has the capability to measure three aerosol backscattering coefficients, two extinction coefficients and three linear depolarization ratios, together with fluorescence backscattering at 466 nm. It was used to characterize aerosols during the pollen season in the north of France for the period March–June 2020. The results of observations demonstrate that the presence of pollen grains in aerosol mixture leads to an increase in the depolarization ratio. Moreover, the depolarization ratio exhibits a strong spectral dependence increasing with wavelength, which is expected for the mixture containing fine background aerosols with low depolarization and strongly depolarizing pollen grains. A high depolarization ratio correlates with the enhancement of the fluorescence backscattering, corroborating the presence of pollen grains. Obtained results demonstrate that simultaneous measurements of particle depolarization and fluorescence allows for the separation of dust, smoke particles and aerosol mixtures containing the pollen grains.</p>https://amt.copernicus.org/articles/14/4773/2021/amt-14-4773-2021.pdf |
| spellingShingle | I. Veselovskii Q. Hu P. Goloub T. Podvin M. Choël N. Visez M. Korenskiy Mie–Raman–fluorescence lidar observations of aerosols during pollen season in the north of France Atmospheric Measurement Techniques |
| title | Mie–Raman–fluorescence lidar observations of aerosols during pollen season in the north of France |
| title_full | Mie–Raman–fluorescence lidar observations of aerosols during pollen season in the north of France |
| title_fullStr | Mie–Raman–fluorescence lidar observations of aerosols during pollen season in the north of France |
| title_full_unstemmed | Mie–Raman–fluorescence lidar observations of aerosols during pollen season in the north of France |
| title_short | Mie–Raman–fluorescence lidar observations of aerosols during pollen season in the north of France |
| title_sort | mie raman fluorescence lidar observations of aerosols during pollen season in the north of france |
| url | https://amt.copernicus.org/articles/14/4773/2021/amt-14-4773-2021.pdf |
| work_keys_str_mv | AT iveselovskii mieramanfluorescencelidarobservationsofaerosolsduringpollenseasoninthenorthoffrance AT qhu mieramanfluorescencelidarobservationsofaerosolsduringpollenseasoninthenorthoffrance AT pgoloub mieramanfluorescencelidarobservationsofaerosolsduringpollenseasoninthenorthoffrance AT tpodvin mieramanfluorescencelidarobservationsofaerosolsduringpollenseasoninthenorthoffrance AT mchoel mieramanfluorescencelidarobservationsofaerosolsduringpollenseasoninthenorthoffrance AT nvisez mieramanfluorescencelidarobservationsofaerosolsduringpollenseasoninthenorthoffrance AT mkorenskiy mieramanfluorescencelidarobservationsofaerosolsduringpollenseasoninthenorthoffrance |