Christoph Ritter, María Ángeles Burgos, Christine Böckmann, David Mateos, Justyna Lisok, Krzysztof M. Markowicz, Beatrice Moroni, David Cappelletti, Roberto Udisti, Marion Maturilli, Roland Neuber
- In this work, an evaluation of an intense biomass burning event observed over Ny-angstrom lesund (Spitsbergen, European Arctic) in July 2015 is presented. Data from the multi-wavelengths Raman-lidar KARL, a sun photometer and radiosonde measurements are used to derive some microphysical properties of the biomass burning aerosol as size distribution, refractive index and single scattering albedo at different relative humidities. Predominantly particles in the accumulation mode have been found with a bi-modal distribution and dominance of the smaller mode. Above 80% relative humidity, hygroscopic growth in terms of an increase of particle diameter and a slight decrease of the index of refraction (real and imaginary part) has been found. Values of the single scattering albedo around 0.9 both at 355nm and 532nm indicate some absorption by the aerosol. Values of the lidar ratio are around 26sr for 355nm and around 50sr for 532nm, almost independent of the relative humidity. Further, data from the photometer and surface radiation valuesIn this work, an evaluation of an intense biomass burning event observed over Ny-angstrom lesund (Spitsbergen, European Arctic) in July 2015 is presented. Data from the multi-wavelengths Raman-lidar KARL, a sun photometer and radiosonde measurements are used to derive some microphysical properties of the biomass burning aerosol as size distribution, refractive index and single scattering albedo at different relative humidities. Predominantly particles in the accumulation mode have been found with a bi-modal distribution and dominance of the smaller mode. Above 80% relative humidity, hygroscopic growth in terms of an increase of particle diameter and a slight decrease of the index of refraction (real and imaginary part) has been found. Values of the single scattering albedo around 0.9 both at 355nm and 532nm indicate some absorption by the aerosol. Values of the lidar ratio are around 26sr for 355nm and around 50sr for 532nm, almost independent of the relative humidity. Further, data from the photometer and surface radiation values from the local baseline surface radiation network (BSRN) have been applied to derive the radiative impact of the biomass burning event purely from observational data by comparison with a clear background day. We found a strong cooling for the visible radiation and a slight warming in the infra-red. The net aerosol forcing, derived by comparison with a clear background day purely from observational data, obtained a value of -95 W/m(2) per unit AOD500.…
MetadatenAuthor details: | Christoph RitterORCiDGND, María Ángeles Burgos, Christine BöckmannORCiDGND, David Mateos, Justyna Lisok, Krzysztof M. Markowicz, Beatrice Moroni, David CappellettiORCiD, Roberto Udisti, Marion Maturilli, Roland Neuber |
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DOI: | https://doi.org/10.1080/16000889.2018.1539618 |
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ISSN: | 1600-0889 |
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Title of parent work (English): | Tellus - Series B, Chemical and Physical Meteorology |
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Publisher: | Routledge, Taylor & Francis Group |
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Place of publishing: | Abingdon |
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Publication type: | Article |
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Language: | English |
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Date of first publication: | 2018/12/05 |
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Publication year: | 2018 |
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Release date: | 2021/01/04 |
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Tag: | Arctic aerosol; aerosol; lidar; radiative forcing; retrieval of aerosol properties |
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Volume: | 70 |
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Number of pages: | 23 |
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Funding institution: | SFB/TR 172 “ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms (AC)3 in sub-project E02 funded by the DFG (Deutsche Forschungsgemeinschaft); Spanish Government by means of POLARMOON project (ref CTM2015-66742-R) and IJCI-2014-19477 grant, and EU-H2020 under grant agreement Nr. 654109 [ACTRIS 2]; European Union (EU) Seventh Framework Program for research, technological development and demonstration under grant agreement No. 289923 - ITaRS |
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Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Umweltwissenschaften und Geographie |
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DDC classification: | 5 Naturwissenschaften und Mathematik / 55 Geowissenschaften, Geologie / 550 Geowissenschaften |
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Peer review: | Referiert |
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Institution name at the time of the publication: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Erd- und Umweltwissenschaften |
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Publishing method: | Open Access / Gold Open-Access |
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| DOAJ gelistet |
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License (German): | CC-BY-NC - Namensnennung, nicht kommerziell 4.0 International |
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