Enhancing mobile aerosol monitoring with CE376 dual-wavelength depolarization lidar

Abstract nm and depolarization at 532 nm, with a photometer to monitor aerosol properties. The assessments, both algorithmic and instrumental, were conducted at ATOLL (ATmospheric Observatory of LiLle) platform operated by the Laboratoire d'Optique Atmosphérique (LOA), in Lille, France. An early version of the CE376 lidar co-located with the CE318-T photometer and with a multi-wavelength Raman lidar were considered for comparisons and validation. We developed a modified Klett inversion method for simultaneous two-wavelength elastic lidar and photometer measurements. Using this setup, we characterized aerosols during two distinct events of Saharan dust and dust smoke aerosols transported over Lille in spring 2021 and summer 2022. For validation purposes, comparisons against the Raman lidar were performed, demonstrating good agreement in aerosol properties with relative differences of up to 12 % in the depolarization measurements. Moreover, a first dataset of CE376 lidar and photometer performing on-road measurements was obtained during the FIREX-AQ (Fire Influence on Regional to Global Environments and Air Quality) field campaign deployed in summer 2019 over the northwestern USA. By lidar and photometer mapping in 3D, we investigated the transport of released smoke from active fire spots at William Flats (northeast WA, USA). Despite extreme environmental conditions, our study enabled the investigation of aerosol optical properties near the fire source, distinguishing the influence of diffuse, convective, and residual smoke. Backscatter, extinction profiles, and column-integrated lidar ratios at 532 and 808 nm were derived for a quality-assured dataset. Additionally, the extinction Ångström exponent (EAE), color ratio (CR), attenuated color ratio (ACR), and particle linear depolarization ratio (PLDR) were derived. In this study, we discuss the capabilities (and limitations) of the CE376 lidar in bridging observational gaps in aerosol monitoring, providing valuable insights for future research in this field.

Angaben zum Objekt

• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch

Verweise und Beziehungen

• Erschienen in: Enhancing mobile aerosol monitoring with CE376 dual-wavelength depolarization lidar ; volume:17 ; number:10 ; year:2024 ; pages:3121-3146 ; extent:26 ; Atmospheric measurement techniques ; 17, Heft 10 (2024), 3121-3146 (gesamt 26)

Beteiligte, Orts- und Zeitangaben

• Urheber: Sanchez Barrero, Maria Fernanda ; Popovici, Ioana Elisabeta ; Goloub, Philippe ; Victori, Stephane ; Hu, Qiaoyun ; Torres, Benjamin ; Podvin, Thierry ; Blarel, Luc ; Dubois, Gaël ; Ducos, Fabrice ; Bourrianne, Eric ; Lapionak, Aliaksandr ; Proniewski, Lelia ; Holben, Brent ; Giles, David Matthew ; LaRosa, Anthony

Weitere Informationen

• DOI: 10.5194/amt-17-3121-2024
• URN: urn:nbn:de:101:1-2405300428116.942410606091
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Letzte Aktualisierung: 14.08.2025, 10:44 MESZ