Fluorescence properties of long-range-transported smoke: insights from five-channel lidar observations over Moscow during the 2023 wildfire season DOI Creative Commons

Igor Veselovskii,

Mikhail Korenskiy, Nikita Kasianik

et al.

Atmospheric chemistry and physics, Journal Year: 2025, Volume and Issue: 25(3), P. 1603 - 1615

Published: Feb. 5, 2025

Abstract. The fluorescence lidar at the Prokhorov General Physics Institute (Moscow) was utilized to study smoke transported over Atlantic during wildfire season from May September 2023. system, which is based on a tripled Nd : YAG laser, performs measurements across five spectral intervals centered wavelengths of 438, 472, 513, 560 and 614 nm. This configuration enables assessment dependence backscattering broad range altitudes, planetary boundary layer (PBL) middle upper troposphere (MUT). capacity smoke, defined as ratio aerosol laser wavelength, exhibits significant variation in MUT, with changes up factor 3. likely indicative differences relative concentration organic compounds within smoke. Analysis more than 40 episodes has enabled an evaluation height properties. Observations reveal that generally increases altitude, suggesting higher MUT compared lower troposphere. Additionally, consistently show spectra urban aerosol. Urban tends decrease gradually whereas peak observed 513 nm channels. distinction provides effective means separating technique applied analysis events where descended into PBL, demonstrating its utility distinguishing between these types.

Language: Английский

Characterizing Aerosol Optical Properties and Direct Radiative Effects From the Perspective of Components: A Synergy Retrieval Study Based on Sun Photometer and Lidar in Central China DOI Creative Commons
Shikuan Jin, Yingying Ma, Hui Li

et al.

Geophysical Research Letters, Journal Year: 2025, Volume and Issue: 52(4)

Published: Feb. 12, 2025

Abstract Exploring various properties of aerosols can help to better understand global climate changes, emissions, and environment. In this study, a synergy observation experiment from sun photometer Lidar was carried out reveal aerosol optical direct radiative effect (DARE) in Central China the novel perspective components. Our results showed that annual mass concentration black carbon (BC) low (2.49 mg/m 2 ), but having large heating with DARE 9.27 W/m at top atmosphere. The brown found highest summer (0.52 ) its 0.10 , close average China. Additionally, retrieved columnar BC had same magnitude MEERA‐2 product, surface ( R = 0.56) because considering vertical profiles. This study significance exploring expanded information observations.

Language: Английский

Citations

1
Fluorescence properties of long-range-transported smoke: insights from five-channel lidar observations over Moscow during the 2023 wildfire season DOI Creative Commons

Igor Veselovskii,

Mikhail Korenskiy, Nikita Kasianik

et al.

Atmospheric chemistry and physics, Journal Year: 2025, Volume and Issue: 25(3), P. 1603 - 1615

Published: Feb. 5, 2025

Abstract. The fluorescence lidar at the Prokhorov General Physics Institute (Moscow) was utilized to study smoke transported over Atlantic during wildfire season from May September 2023. system, which is based on a tripled Nd : YAG laser, performs measurements across five spectral intervals centered wavelengths of 438, 472, 513, 560 and 614 nm. This configuration enables assessment dependence backscattering broad range altitudes, planetary boundary layer (PBL) middle upper troposphere (MUT). capacity smoke, defined as ratio aerosol laser wavelength, exhibits significant variation in MUT, with changes up factor 3. likely indicative differences relative concentration organic compounds within smoke. Analysis more than 40 episodes has enabled an evaluation height properties. Observations reveal that generally increases altitude, suggesting higher MUT compared lower troposphere. Additionally, consistently show spectra urban aerosol. Urban tends decrease gradually whereas peak observed 513 nm channels. distinction provides effective means separating technique applied analysis events where descended into PBL, demonstrating its utility distinguishing between these types.

Language: Английский

Citations

0