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A Seven-Years Based Characterization of Aerosol Light Scattering Properties at Central European Rural Site: Variability and Source Apportionment.
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SYSNO ASEP 0563790 Document Type A - Abstract R&D Document Type O - Ostatní Title A Seven-Years Based Characterization of Aerosol Light Scattering Properties at Central European Rural Site: Variability and Source Apportionment. Author(s) Suchánková, Lenka (UCHP-M)
Mbengue, S. (CZ)
Zíková, Naděžda (UCHP-M) RID, ORCID, SAI
Ondráček, Jakub (UCHP-M) RID, ORCID, SAI
Holubová Šmejkalová, A. (CZ)
Holoubek, I. (CZ)
Ždímal, Vladimír (UCHP-M) RID, ORCID, SAI
Prokeš, R. (CZ)Source Title Abstract Book 1st ACTRIS Science Conference 2022. - Helsinki, 2022 / Ovaska A. ; Vera J.A.C. ; Rörup B. ; Petäjä T. - ISSN 2814-4236 - ISBN 978-952-7276-80-8
S. 39-42Number of pages 4 s. Publication form Online - E Action ACTRIS Science Conference /1./ Event date 11.05.2022 - 13.05.2022 VEvent location Helsinki Country FI - Finland Event type EUR Language eng - English Country FI - Finland Keywords scattering and backscattering coefficient ; nephelometer ; long-term measurement ; climate change OECD category Meteorology and atmospheric sciences R&D Projects LM2015037 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UCHP-M - RVO:67985858 Annotation Atmospheric aerosols have a significant impact on the radiative forcing of Earth's climate, either directly through aerosol-radiative interactions (ARIs), i.e., scattering or absorption of incoming solar and outgoing infrared radiation, or indirectly through aerosol-cloud interactions (ACIs). The aerosol radiative forcing of the direct effect consists of a warming effect and a cooling effect. The predominant cooling effect results from the scattering of radiation by certain atmospheric aerosols (including sea salts, nitrates, sulfates, mineral and organic matter, etc.) that reduce the amount of solar radiation reaching the Earth's surface (IPCC, 2013). This phenomenon offsets the greenhouse effect and alters the radiation balance. According to a number of studies, radiative forcing by aerosols remains one of the main sources of uncertainty in a climate model estimate due to the strong spatial and temporal variations in chemical and physical properties, short lifetime compared to greenhouse gasses, and diversity of aerosol sources. These studies are important for a better understanding of local and long-range transport of both anthropogenic pollutants and natural sources and for unbiased long-term trends. Therefore, we focused on the temporal variations and sources of light scattering aerosols at a rural site in central Europe. The total light scattering (σsp) and backscattering (σbsp) coefficients and associated calculated optical properties such as the Ångstrӧm exponent (SAE), backscattering ratio (b), and asymmetry factor (g) are characterized considering different time scales (annual, seasonal, monthly, weekly, and diurnal). Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2023 Electronic address http://www.faar.fi/wp-content/uploads/2022/04/RS250_AbstractBook_ACTRIS_SC_2022.pdf
Number of the records: 1